Academic article

• Herdlevær, Kristoffer Mega; Strandengen, Kasper; Løhre, Camilla et al. (2024). Determination of Sugar Concentrations in Aqueous Solution Using Multivariate Predictions Based on 1H-NMR Spectroscopy. (external link)
• Herdlevær, Kristoffer Mega; Barth, Tanja (2024). Optimizing Formic Acid-Assisted Co-HTL of Digested Sewage Sludge and Lignocellulosic Waste for Enhanced Bio-Crude Yield and Energy Recovery. (external link)
• Tanase-Opedal, Mihaela; Ghoreishi, Solmaz; Hermundsgård, Dag Helge et al. (2024). Steam explosion of lignocellulosic residues for co-production of value-added chemicals and high-quality pellets. (external link)
• Hegdahl, Stian Hersvik; Ghoreishi, Solmaz; Løhre, Camilla et al. (2023). Exploring hydrothermal liquefaction (HTL) of digested sewage sludge (DSS) at 5.3 L and 0.025 L bench scale using experimental design. (external link)
• Ghoreishi, Solmaz; Løhre, Camilla; Hermundsgård, Dag Helge et al. (2022). Identification and quantification of valuable platform chemicals in aqueous product streams from a preliminary study of a large pilot-scale steam explosion of woody biomass using quantitative nuclear magnetic resonance spectroscopy. (external link)
• Herdlevær, Kristoffer Mega; Løhre, Camilla; Nodland, Egil et al. (2022). Comparison of calibration models for rapid prediction of lignin content in lignocellulosic biomass based on infrared and near-infrared spectroscopy. (external link)
• Hermundsgård, Dag Helge; Ghoreishi, Solmaz; Opedal, Mihaela Tanase et al. (2022). Investigating solids present in the aqueous stream during STEX condensate upgrading—a case study. (external link)
• Hegdahl, Stian Hersvik; Løhre, Camilla; Barth, Tanja (2022). Hydrothermal liquefaction of sewage sludge anaerobic digestate for bio-oil production: Screening the effects of temperature, residence time and KOH catalyst. (external link)
• Halleraker, Hilde Vik; Kalogiannis, Konstantinos; Lappas, Angelos et al. (2022). The Consistency of Yields and Chemical Composition of HTL Bio-Oils from Lignins Produced by Different Preprocessing Technologies. (external link)
• Løhre, Camilla; Underhaug, Jarl; Brusletto, Rune et al. (2021). A Workup Protocol Combined with Direct Application of Quantitative Nuclear Magnetic Resonance Spectroscopy of Aqueous Samples from Large-Scale Steam Explosion of Biomass. (external link)
• De Meulenaere, Roeland; Maertens, Tim; Sikkema, Ale et al. (2021). Energetic and exergetic performances of a retrofitted, large-scale, biomass-fired chp coupled to a steam-explosion biomass upgrading plant, a biorefinery process and a high-temperature heat network. (external link)
• Halleraker, Hilde Vik; Ghoreishi, Solmaz; Barth, Tanja (2020). Investigating reaction pathways for formic acid and lignin at HTL conditions using 13C-labeled formic acid and 13C NMR. (external link)
• Gauteplass, Jarand; Almenningen, Stian; Barth, Tanja et al. (2020). Hydrate plugging and flow remediation during CO2 injection in sediments. (external link)
• Halleraker, Hilde Vik; Barth, Tanja (2020). Quantitative NMR analysis of the aqueous phase from hydrothermal liquefaction of lignin. (external link)
• Dörner, Markus; Berner, U; Erdmann, M et al. (2020). Geochemical characterization of the depositional environment of Paleocene and Eocene sediments of the Tertiary Central Basin of Svalbard. (external link)
• Hita, I.; Ghoreishi, Solmaz; Santos, J.I. et al. (2020). Hydrothermal liquefaction versus catalytic hydrodeoxygenation of a bioethanol production stillage residue to platform chemicals: A comparative study. (external link)
• Almenningen, Stian; Gauteplass, Jarand; Hauge, Lars Petter et al. (2019). Measurements of CH4 and CO2 relative permeability in hydrate-bearing sandstone. (external link)
• Ghoreishi, Solmaz; Barth, Tanja; Derribsa, Hailegebrel (2019). Formic acid assisted liquefaction of lignin in water and ethanol, investigated for a 0.025 and a 5 L batch reactor: Comparison of yields and compositions of the products. (external link)
• Dörner, Markus; Berner, Ulrich; Erdmann, Michael et al. (2019). Carbon isotopic analysis of reactive organic matter using a new pyrolysis-cryotrapping-isotope ratio mass spectrometry method: The isotope variation of organic matter within the S1 and S2 peaks of Rock-Eval. (external link)
• Gauteplass, Jarand; Almenningen, Stian; Ersland, Geir et al. (2019). Multiscale investigation of CO2 hydrate self-sealing potential for carbon geo-sequestration. (external link)
• Ghoreishi, Solmaz; Barth, Tanja; Derribsa, Hailegebrel (2019). Stirred and non-stirred lignin solvolysis with formic acid in aqueous and ethanolic solvent systems at different levels of loading in a 5-L reactor. (external link)
• Ghoreishi, Solmaz; Barth, Tanja; Hermundsgård, Dag Helge (2019). Effect of Reaction Conditions on Catalytic and Noncatalytic Lignin Solvolysis in Water Media Investigated for a 5 L Reactor. (external link)
• Almenningen, Stian; Gauteplass, Jarand; Fotland, Per et al. (2018). Visualization of hydrate formation during CO2 storage in water-saturated sandstone. (external link)
• Gauteplass, Jarand; Almenningen, Stian; Ersland, Geir et al. (2018). Hydrate seal formation during laboratory CO2 injection in a cold aquifer. (external link)
• Løhre, Camilla; Laugerud, Gro-Anita Aakre; J. Huijgen, Wouter J. et al. (2018). Lignin-to-liquid-solvolysis (LtL) of organosolv extracted lignin. (external link)
• Oregui, Mikel; Gandarias, Inaki; Arias, Pedro L et al. (2018). Solvent and catalyst effect in the formic acid aided lignin-to-liquids. (external link)
• Oregui Bengoechea, Mikel; Miletic, Nemanja; Vogt, Mari H et al. (2017). Analysis of the effect of temperature and reaction time on yields, compositions and oil quality in catalytic and non-catalytic lignin solvolysis in a formic acid/water media using experimental design. (external link)
• Oregui, Mikel; Gandarias, Inaki; Miletic, Nemanja et al. (2017). Thermocatalytic conversion of lignin in an ethanol/formic acid medium with NiMo catalysts: Role of the metal and acid sites. (external link)
• Holmelid, Bjarte; Barth, Tanja; Brusletto, Rune et al. (2017). Production of monomeric phenols by formic acid assisted hydrous liquefaction of lignin. (external link)
• Hvidsten, Ina; Mjøs, Svein Are; Bødtker, Gunhild et al. (2017). Lipids of Dietzia sp. A14101. Part II: A study of the dynamics of the release of surface active compounds by Dietzia sp. A14101 into the medium. (external link)
• Haukalid, Kjetil; Folgerø, Kjetil; Barth, Tanja et al. (2017). Hydrate formation in water-in-crude oil emulsions studied by broad-band permittivity measurements. (external link)
• Seddon, Alistair; Jokerud, Mari; Barth, Tanja et al. (2017). Improved quantification of UV-B-absorbing compounds in Pinus sylvestris L. pollen grains using an internal standard methodology. (external link)
• Løhre, Camilla; Halleraker, Hilde Vik; Barth, Tanja (2017). Composition of lignin-to-liquid solvolysis oils from lignin extracted in a semi-continuous organosolv process. (external link)
• Oregui, Mikel; Gandarias, Inaki; Arias, Pedro L. et al. (2017). Unraveling the Role of Formic Acid and the Type of Solvent in the Catalytic Conversion of Lignin: A Holistic Approach. (external link)
• Løhre, Camilla; Kleinert, Mike; Barth, Tanja (2017). Organosolv extraction of softwood combined with lignin-to-liquid-solvolysis as a semi-continuous percolation reactor. (external link)
• Hao, Wenming; Bjornerback, Fredrik; Trushkina, Yulia et al. (2017). High-performance Magnetic Activated Carbon from Solid Waste from Lignin Conversion Processes. Part I: Their Use as Adsorbents for CO2. (external link)
• Oregui, Mikel; Miletić, Nemanja; Hao, Wenming et al. (2017). High-performance magnetic activated carbon from solid waste from lignin conversion processes. 2. Their use as NiMo catalyst supports for lignin conversion. (external link)
• Hao, Wenming; Bjornerback, Fredrik; Trushkina, Yulia et al. (2017). High-Performance Magnetic Activated Carbon from Solid Waste from Lignin Conversion Processes. 1. Their Use As Adsorbents for CO<sub>2</sub>. (external link)
• Hvidsten, Ina; Mjøs, Svein Are; Holmelid, Bjarte et al. (2017). Lipids of Dietzia sp. A14101. Part I: A study of the production dynamics of surface-active compounds. (external link)
• Løhre, Camilla; Barth, Tanja; Kleinert, Mike (2016). The effect of solvent and input material pretreatment on product yield and composition of bio-oils from lignin solvolysis. (external link)
• Hvidsten, Ina; Mjøs, Svein Are; Bødtker, Gunhild et al. (2015). Data on pigments and long-chain fatty compounds identified in Dietzia sp. A14101 grown on simple and complex hydrocarbons. (external link)
• Hvidsten, Ina; Mjøs, Svein Are; Bødtker, Gunhild et al. (2015). Fatty acids in bacterium Dietzia sp grown on simple and complex hydrocarbons determined as FAME by GC-MS. (external link)
• Oregui, Mikel; Hertzberg, Agnethe; Miletic, Nemanja et al. (2015). Simultaneous catalytic de-polymerization and hydrodeoxygenation of lignin in water/formic acid media with Rh/Al2O3, Ru/Al2O3 and Pd/Al2O3 as bifunctional catalysts. (external link)
• Christy, Alfred Antony; Barth, Tanja; Francis, George William (2014). Preliminary photochemical studies of fluorene in various aqueous media. (external link)
• Carlson, Johan E.; Tomren, Andreas Linge; Folgerø, Kjetil et al. (2014). Estimation of dielectric properties of crude oils based on IR spectroscopy. (external link)
• Tomren, Andreas Linge; Barth, Tanja (2014). Comparison of partial least squares calibration models of viscosity, acid number and asphaltene content in petroleum, based on GC and IR data. (external link)
• Gasson, James Richard; Barth, Tanja; Genov, Georgi (2013). Comparison of the gas hydrate plugging potentials of a set of crude oils from the Norwegian continental shelf using chemometric decomposition of GC-FID data. (external link)
• Christy, Alfred Antony; Nkansah, Marian Asantewah; Barth, Tanja (2012). Catalytic oxidation and reduction of polycyclic aromatic hydrocarbons (PAHs) present as mixtures in hydrothermal media. (external link)
• Nkansah, Marian Asantewah; Christy, Alfred Antony; Barth, Tanja et al. (2012). The use of lightweight expanded clay aggregate (LECA) as sorbent for PAHs removal from water. (external link)
• Holmelid, Bjarte; Kleinert, Mike; Barth, Tanja (2012). Reactivity and reaction pathways in thermochemical treatment of selected lignin-like model compounds under hydrogen rich conditions. (external link)
• Tomren, Andreas Linge; Barth, Tanja; Folgerø, Kjetil (2012). Multivariate Analysis of Crude Oil Composition and Fluid Properties Used in Multiphase Flow Metering (MFM). (external link)
• Forchheim, Daniel; Gasson, James Richard; Hornung, Ursel et al. (2012). Modeling the lignin degradation kinetics in a ethanol/formic acid solvolysis approach. Part 2. Validation and transfer to variable conditions. (external link)
• Carlson, Johan E.; Gasson, James Richard; Barth, Tanja et al. (2012). Extracting homologous series from mass spectrometry data by projection on predefined vectors. (external link)
• Gasson, James Richard; Forchheim, Daniel; Sutter, Tatjana et al. (2012). Modeling the lignin degradation kinetics in an ethanol/formic acid solvolysis approach. Part 1. Kinetic model development. (external link)
• Nkansah, Marian Asantewah; Christy, Alfred Antony; Barth, Tanja (2011). The use of anthracene as a model compound in a comparative study of hydrous pyrolysis methods for industrial waste remediation. (external link)
• Talatori, Shiva; Barth, Tanja (2011). Rate of hydrate formation in crude oil/gas/water emulsions with different water cuts. (external link)
• Corak, Djurdjica; Barth, Tanja; Høiland, Sylvi et al. (2011). Effect of subcooling and amount of hydrate former on formation of cyclopentane hydrates in brine. (external link)
• Barth, Tanja; Liguori, Lucia (2011). Palladium-Nafion SAC 13 catalysed depolymerisation of lignin to phenols in formic acid and water. (external link)
• Kleinert, Mike; Gasson, James Richard; Eide, Ingvar et al. (2011). DEVELOPING SOLVOLYTIC CONVERSION OF LIGNIN-TO-LIQUID (LtL) FUEL COMPONENTS: OPTIMIZATION OF QUALITY AND PROCESS FACTORS. (external link)
• Aspenes, Guro; Høiland, Sylvi; Borgund, Anna Elisabet et al. (2010). Wettability of petroleum pipelines: influence of crude oil and pipeline material in relation to hydrate deposiion. (external link)
• Vaular, Espen Nesheim; Barth, Tanja; Haflidason, Haflidi (2010). The geochemical characteristics of the hydrate-bound gases from the Nyegga pockmark field, Norwegian Sea. (external link)
• Erstad, Kristin; Høiland, Sylvi; Fotland, Per et al. (2009). Influence of petroleum acids on gas hydrate wettability. (external link)
• Aspenes, Guro; Høiland, Sylvi; Barth, Tanja et al. (2009). The influence of petroleum acids and solid surface energy on pipeline wettability in relation to hydrate deposition. (external link)
• Erstad, Kristin; Hvidsten, Ina V.; Askvik, Kjell Magne et al. (2009). Changes in crude oil composition during laboratory biodegradation: Acids and oil–water, oil–hydrate interfacial properties. (external link)
• Bødtker, Gunhild; Hvidsten, Ina V.; Barth, Tanja et al. (2009). Hydrocarbon degradation by Dietzia sp. A14101 isolated from an oil reservoir model column. (external link)
• Borgund, Anna Elisabet; Høiland, Sylvi; Barth, Tanja et al. (2009). Molecular analysis of petroleum derived compounds that adsorb onto gas hydrate surfaces. (external link)
• Kleinert, Mike; Gasson, James Richard; Barth, Tanja (2009). Optimizing solvolysis conditions for integrated depolymerisation and hydrodeoxygenation of lignin to produce liquid biofuel. (external link)
• Gellerstedt, G; Li, Jiebling; Eide, Ingvar et al. (2008). Chemical Structures Present in Biofuel Obtained from Lignin. (external link)
• Genov, Georgi Yordanov; Nodland, Egil; Pedersen, Bent Skaare et al. (2008). Comparison of biodegradation level and gas hydrate plugging potential of crude oils using FT-IR spectroscopy and multi-component analysis. (external link)
• Barth, Tanja; Kleinert, Mike (2008). Motor fuels from biomass pyrolysis. (external link)
• Kleinert, Mike; Barth, Tanja (2008). Phenols from lignin. (external link)
• Kleinert, Mike; Barth, Tanja (2008). Towards a lignincellulosic biorefinery: Direct one-step conversion of lignin to hydrogen-enriched biofuel. (external link)
• Pedersen, Bent Skaare; Wilkes, H; Vieth, A et al. (2007). Alteration of crude oils from the Troll area by biodegradation: Analysis of oil and water samples. (external link)
• Borgund, Anna Elisabeth; Erstad, Kristin; Barth, Tanja (2007). Fractionation of crude oil acids by HPLC and characterization of their properties and effects on gas hydrate surfaces. (external link)
• Borgund, Anna Elisabeth; Erstad, Kristin; Barth, Tanja (2007). Normal phase high performance liquid chromatography for fractionation of organic acid mixtures extracted from crude oils. (external link)
• Barth, Tanja; Høiland, Sylvi; Fotland, Per et al. (2005). Relationship between the content of asphaltenes and bases in some crude oils. (external link)
• Hoiland, S; Askvik, Kjell Magne; Fotland, Per et al. (2005). Wettability of Freon hydrates in crude oil/brine emulsions. (external link)
• Askvik, Kjell Magne; Hoiland, S; Fotland, Per et al. (2005). Calculation of wetting angles in crude oil/water/quartz systems. (external link)
• Barth, Tanja; Høiland, Sylvi (2004). Acidic compounds in biodegraded petroleum. (external link)
• Standal, Sylvi Høiland; Blokhus, Anne Marit; Haavik, Jan et al. (1999). Partition Coefficients and Interfacial Activity for Polar Components in Oil/Water Model Systems. (external link)
• Borgund, A.E.; Barth, Tanja (1999). Effects of base catalysis on the product distribution from pyrolysis of woody biomass in the presence of water. (external link)
• Barth, Tanja (1999). Similarities and differences in hydrous pyrolysis of biomass and source rocks. (external link)
• Standal, Sylvi; Blokhus, Anne Marit; Haavik, J. et al. (1999). Partition Coefficients and Interfacial Activity for Polar Components in Oil-Water Model Systems. (external link)
• Egeberg, P.Kr.; Barth, Tanja; Johansen, I. et al. (1998). Influence of dissolved species on the carbon and energy budgets of hydrate bearing deep sediments (ODP Site 997 Blake Ridge). (external link)
• Hlavaecek, J.; Bennettova, B.; Barth, Tanja et al. (1997). Synthesis, radiolabeling and biological activity of peptide oostatic hormone and its analogues. (external link)
• Wellesbury, P.; Goodman, K.; Barth, Tanja et al. (1997). Deeep marine biosphere fuelled by increasing organic matter availability during burial and heating. (external link)
• Huseby, Berit; Barth, Tanja; Ocampo, R. (1996). Porphyrins in Upper Jurassic source rocks and correlations with other source rock descriptors. (external link)
• Barth, Tanja; Schmidt, Kurt Andreas Georg; Nielsen, S. B. (1996). Do kinetic parameters from open pyrolysis describe petroleum generation by simulated maturation?. (external link)
• Barth, Tanja; Rist, K.; Huseby, B. et al. (1996). The distribution of nitrogen between bitumen, water and residue in hydrous pyrolysis of Messel oil shale. (external link)
• Husebye, B.; Ocampo, R.; Bauder, C. et al. (1996). Study of the pophyrins released from the Messel oil shale kerogen by hydrous pyrolysis experiments. (external link)
• Barth, Tanja; Seim, M.; Christy, A. A. et al. (1995). Maturity trends in asphaltenes from pyrolysed source rocks and natural coals-Multivariate modelling of diffuse reflectance Fourier transform infrared spectra. (external link)
• Pittman, E.D.; Lewan, M.D.; Barth, Tanja (1995). Organic acids in geological processes. (external link)
• Borgund, Anna Elisabet; Barth, Tanja (1994). Generation of short-chain organic acids form crude oil by hydrous pyrolysis. (external link)
• Barth, Tanja; Borgund, Anna Elisabet (1994). Effects of chemical composition on two-phase flow in porous rocks - a multivariate screening including interaction effects. (external link)
• Andersen, B.; Throndsen, T.; Barth, Tanja et al. (1994). Models of thermal generation of carbon dioxide and organic acids form different source rocks. (external link)
• Andresen, B.; Barth, Tanja; Irwin, H. (1993). Yields and carbon isotopic composition of pyrolysis products from artificial maturation processes. (external link)
• Borgund, Anna Elisabet; Barth, Tanja (1993). Migration behaviour of petroleum associated short chain orgaic acids. (external link)
• Barth, Tanja; Nielsen, S. B. (1993). Estimating kinetic parameters for generation of petroleum and single components from hydrous pyrolysis of source rocks. (external link)
• Carlson, R.; Nordahl, Å.; Axelsson, A-K. et al. (1993). Optimization in organic synthesis: An approach to obtaining kinetic information by sequential response surface modelling. An outline of the method. (external link)
• Barth, Tanja; Bjørlykke, K. (1993). Organic acids from source rock maturation - generation potentials, transport mechanisms and relevance for mineral diagenesis. (external link)
• Mæland, K.; Barth, Tanja; Lundal, E. et al. (1991). Testbruk blant norske psykologer. Resultater fra en enkel enquete. (external link)
• Christy, A. A.; Hopland, A. L.; Barth, Tanja et al. (1989). Quantitative determination of thermal maturity in sedimentary organic matter by diffuse reflectance infrared spectroscopy of asphaltenes. (external link)

Academic lecture

• Hermundsgård, Dag Helge; Tanase-Opedal, Mihaela; Ghoreishi, Solmaz et al. (2023). Examination of pretreatment variables for co-production of black pellets and valuable platform chemicals. (external link)
• Hegdahl, Stian Hersvik; Akervold, Kristine; Kongjampee, Usanee et al. (2022). Biogas Residues as Feedstock for Hydrothermal Conversion: Bio-Oil Yield Optimisation and Fate of Drugs. (external link)
• Løhre, Camilla; Ghoreishi, Solmaz; Molnes, Joakim Lindgaard et al. (2022). 150x Upscaling of Batch Hydrothermal Liquefaction of Digested Wastewater Sludge with Water and Ethanol using an Experimental Design. (external link)
• Hegdahl, Stian Hersvik; Løhre, Camilla; Ghoreishi, Solmaz et al. (2022). 150x Upscaling of Batch Hydrothermal Liquefaction of Digested Wastewater Sludge with Water and Ethanol using an Experimental Design. (external link)
• Løhre, Camilla; Barth, Tanja (2021). Optimizing composition of renewable aromatics from lignin in preparation for catalytic upgrading and fuel blending. . (external link)
• Ghoreishi, Solmaz; Hermundsgård, Dag Helge; Løhre, Camilla et al. (2021). Quantitative NMR analysis of the aqueous product streams from large pilot-scale steam explosion revealing high value-added platform chemicals. (external link)
• Løhre, Camilla; Barth, Tanja; Brusletto, Rune (2020). Side-stream effluent from large scale steam explosion at blackpellet plant revealing high furfural-content and added product value. (external link)
• Ghoreishi, Solmaz; Hermundsgård, Dag Helge; Barth, Tanja (2019). The Effect of Temperature on Yields, Oil Quality and Composition in Catalytic and Non-Catalytic Lignin Solvolysis with Formic Acid in 5-L Scale. (external link)
• Hegdahl, Stian Hersvik; Ødegaard, Maiken Lyssand; Paulsen, Maren et al. (2019). Utilizing Digested Wastewater Sludge in Hydrothermal Conversion to Produce Bio-oil. (external link)
• Gauteplass, Jarand; Almenningen, Stian; Ersland, Geir et al. (2018). Loss of CO2 injectivity in sandstone under hydrate stable conditions. (external link)
• Barth, Tanja (2017). Research perspectives on biofuels. (external link)
• Barth, Tanja; Ghoreishi, Solmaz; Oregui, Mikel et al. (2017). Thermal Conversion of lignin residues for Production of bio-fuels and chemicalson a lignocellulosic biorefinery. (external link)
• Gauteplass, Jarand; Torsvik, Anja; Barth, Tanja (2017). Rheology of CO2 – CH4 hydrates measured in a concentric pressure cell. (external link)
• Ghoreishi, Solmaz; Barth, Tanja; Halleraker, Hilde Vik et al. (2015). Stirred and unstirred lignin solvolysis with formic acid in aqueous or ethanolic solvents at 5-L scale. (external link)
• Barth, Tanja; Ghoreishi, Solmaz; Derribsa, Hailegebrel (2014). Upscaling of the lignin-to-liquid solvolytic conversion to 5-L scale. (external link)
• Løhre, Camilla; Ghoreishi, Solmaz; Halleraker, Hilde Vik et al. (2013). The Effect of Input Material on product yield and Composition of bio-oils from lignin solvolysis. (external link)
• Gasson, James Richard; Hornung, Ursel; Forchheim, Daniel et al. (2012). A Kinetic Study on Intermediate Species and their Role in the Degradation and Hydrodeoxygenation of Lignin in the Lignin-to-Liquid Process. (external link)
• Gasson, James Richard; Barth, Tanja; Kleinert, Mike et al. (2012). Thermochemical valorisation in a wood based biorefinery. (external link)
• Holmelid, Bjarte; Kleinert, Mike; Barth, Tanja (2011). Reaction Pathways for Lignin Model Compounds under LtL-Conditions. (external link)
• Eide, Ingvar; Neverdal, Gunhild; Gasson, James Richard et al. (2011). Identification of homologous series of organic compounds in bio-oils from lignocellulose. (external link)
• Tomren, Andreas Linge; Barth, Tanja; Folgerø, Kjetil (2010). Chemometric analysis of crude oil composition and fluid properties. (external link)
• Tomren, Andreas Linge; Barth, Tanja; Folgerø, Kjetil (2010). Chemometric analysis of crude oil composition and fluid properties. (external link)
• Holmelid, Bjarte; Kleinert, Mike; Barth, Tanja (2010). The Chemistry of the Lignin to Liquid (LtL) Conversion process. (external link)
• Holmelid, Bjarte; Kleinert, Mike; Barth, Tanja (2010). Mechanistic Studies of the Lignin to Liquid (LtL) Conversion Process. (external link)
• Nkansah, Marian Asantewah; Barth, Tanja (2010). Environmental remediation:A look at soil. (external link)
• Aspenes, Guro; Barth, Tanja; Høiland, Sylvi (2010). Critical Parameters for Gas Hydrate Pipeline Deposition. (external link)
• Barth, Tanja; Kleinert, Mike; Gasson, James Richard et al. (2009). Developing solvolytic conversion of lignin to liquid (LtL) fuel components: Optimisation of quality and process economical factors. (external link)
• Haflidason, Haflidi; Mienert, Juergen; Kvamme, Bjørn et al. (2009). Gas hydrates on the Norway-Barents Sea-Svalbard margin (GANS); an overview and preliminary results. (external link)
• Kleinert, Mike; Barth, Tanja (2008). Facile one-step conversion of lignin into bio-fuel components. (external link)
• Kleinert, Mike; Barth, Tanja; Gasson, James Richard (2008). Determining the best reaction conditions for yields and composition of "oil" from lignin in a new solvolytic pyrolysis technique. (external link)
• Barth, Tanja; Talatori, Shiva; Erstad, Kristin et al. (2008). Hydrates in petroleum production-assessment of plug risk. Project HYPERION enters it s third and final year. (external link)
• Aspenes, Guro; Høiland, Sylvi; Barth, Tanja et al. (2008). Petroleum hydrate deposition mechanisms: the influence of pipeline wettability. (external link)
• Kleinert, Mike; Barth, Tanja (2007). Production of biofuel and phenols from lignin by hydrous pyrolysis. (external link)
• Ommedal, Hege; Torsvik, Terje; Pedersen, Bent Skaare et al. (2006). Anaerobic degradation of hydrocarbons by sulfate reducing bacteria and the implications for reservoir souring. (external link)
• Pedersen, Bent Skaare; Vieth, Andrea; Wilkes, Heinz et al. (2006). Måling av stabile karbonisotopforhold for enkeltkomponenter ved GC-IRMS - anvendelse i mikrobiell nedbrytning av olje. (external link)
• Ommedal, Hege; Pedersen, Bent Skaare; Barth, Tanja et al. (2005). Crude oil as carbon source during sulfate reduction. (external link)
• Borgund, Anna Elisabeth; Høiland, Sylvi; Barth, Tanja et al. (2005). Characterisation of crude oil components with affinity for gas-hydrate surfaces. (external link)
• Høiland, Sylvi; Borgund, Anna Elisabeth; Barth, Tanja et al. (2005). Wettability of Freon hydrates in crude oil/brine emulsions: the effects of chemical additives. (external link)
• Barth, Tanja (2005). Produksjon av motordrivstoff ved pyrolyse av biomasse. (external link)
• Pedersen, Bent Skaare; Ommedal, Hege; Brekke, Trond et al. (2004). Evidence of reservoir-like biodegradation patterns during an 8 week inoculation experiment. (external link)
• Barth, Tanja; Bogund, Anna Elisabet; Brustad, Gro Valle (2004). The effect of water as reaction medium in closed vessel pyrolysis of biomass. (external link)
• Barth, Tanja; Høiland, Sylvi (2004). Organic molecular analysis of hydrate adsorbing components. (external link)
• Barth, Tanja; Hansen, Birthe G. (1999). Processes leading to increase of alkyl chain lengths under hydrous pyrolysis conditions. (external link)
• Rohde, H.C.; Barth, Tanja (1999). Fluorescence-scanning of slabbed cores compared to data from thermal extraction and fluorescence of the individual oil fractions. (external link)
• Hovland, A.R.; Barth, Tanja (1999). Distribution patterns of phenols and mediuim chain length organic acids between oil- and water phases. (external link)
• Barth, Tanja (1999). Olje av boss: Omdanning av avfalls-biomasse til flytende drivstoff ved pyrolyse. (external link)
• Barth, Tanja (1999). Olje av boss: Omdanning av avfalls-biomasse til flytende drivstoff ved pyrolyse. (external link)
• Fagerland, L.; Barth, Tanja; Grung, K.E. (1998). Syrers innvirkning på voksavsetning på metall. (external link)
• Standal, Sylvi; Haavik, Jan; Skauge, A. et al. (1998). Effect of Polar Organic Components on Wettability as studied by Adsorption and Contact angles. (external link)
• Fjellestad, A.; Barth, Tanja (1998). Ketoner brukt i multivariat modenhetsbestemmele av pyrolyseoljer. (external link)
• Barth, Tanja; Moen, L.K.; Dyrkorn, C. (1998). Comparison of acid numbers and carboxylic acid molecular composition in biodegraded and normal crude oils. (external link)
• Barth, Tanja; Anda, H.; Skipnes, K. et al. (1998). Sources for oil contamination of stranded seabirds on the south-west Norwegian coast. (external link)
• Dyrkorn, C.; Barth, Tanja; Moen, L.K. (1998). Kartlegging av syrer i Nordsjø-oljer. (external link)
• Barth, Tanja (1998). Similarities and differences in biomass pyrolysis and simulated petroleum generation. (external link)
• Hansen, B.G.; Barth, Tanja (1998). Karboksylsyrer i formasjonsvann sammenlignet med syrer i vannfase fra pyrolyse av marusyre. (external link)
• Andresen, Bjørg; Barth, Tanja; Johansen, Ingar et al. (1997). Thermal stability of aquoeous acetate. (external link)
• Andresen, Bjørg; Barth, Tanja; Johansen, Hanne Marie et al. (1997). Sources of natural gas deducted from artificial maturation - an useful analogue to volcanic margin processes?. (external link)
• Barth, Tanja; Andresen, Bjørg; Schmidt, Birthe J. et al. (1997). Geochemical models for petroleum compositiom at high temperatures; Development and calibration. (external link)
• Barth, Tanja; Schmidt, Birthe J.; Nielsen, S.B. (1997). Kinetic models for oil and gas generationfrom coals and source rocks: Internal rearrangement of parallell reactions, effects of uncertainity, and testing in basin modelling. (external link)
• Standal, Sylvi Høiland; Blokhus, Anne Marit; Barth, Tanja et al. (1997). Partition coefficients and interfacial activity for polar components in oil/water model systems. (external link)
• Barth, Tanja; Skeidsvoll, Øystein (1997). Conversions of algal biomass to low molecular product by hydrous pyrolysis, and comparision to simulated matuation of source rock. (external link)
• Flatekvaal, D.; Barth, Tanja; Lauritzen, Stein-Erik (1996). Karakterisering av organisk materiale i dryppstein for paleoklimatologisk tolkning. (external link)
• Barth, Tanja; Andresen, B.; Iden, Kaja et al. (1993). Modelling source rock production potentials for diagenetically active compounds. A multivariate approach. Extended abstract in conference proceedings. (external link)
• Barth, Tanja; Riis, Mona (1992). Interactions between organic acid anions in formation waters and reservoir mineral phases. (external link)

Poster

• Hegdahl, Stian Hersvik; Løhre, Camilla; Barth, Tanja (2021). Hydrothermal Liquefaction of Digested Sewage Sludge to Produce Bio-Oil - Thermochemical conversion of digested sewage sludge in water or ethanol as an in-situ solvent system has been optimized at small and large scale. (external link)
• Seddon, Alistair; Jokerud, Mari; Vandvik, Vigdis et al. (2017). Palaeo-UV-B reconstructions in fossil-pollen chemistry: quantifying uncertainties and measuring short-term responses in Pinus spp.. (external link)
• Barth, Tanja; Oregui, Mikel; Løhre, Camilla et al. (2017). COMPARING APPROACHES FOR LIGNIN VALORISATION BY FORMIC ACID ASSISTED SOLVOLYSIS – WHAT IS THE BEST OPTION ? . (external link)
• Gawel, Kamila; Berntsen, Andreas Nicolas; Torsæter, Malin et al. (2017). INJECT: Avoiding Loss of CO2 Injectivity. (external link)
• Løhre, Camilla; Barth, Tanja; Brusletto, Rune (2017). Arbacore pellets replacing coal in thermal power plants. (external link)
• Løhre, Camilla; Barth, Tanja (2015). Development of the continuous process of solvolytic conversion of lignin to bio-oil – Lignosolv . (external link)
• Ghoreishi, Solmaz; Derribsa, Hailegebrel; Barth, Tanja (2014). Upscaling of lignin solvolysis with formic acid to 5-L scale. (external link)
• Gasson, James Richard; Carlson, Johan E.; Eide, Ingvar et al. (2012). Extracting Homologous Series from Fingerprint Mass Spectrometry Data of Bio-Oils: A Complement to PCA. (external link)
• Gasson, James Richard; Carlson, Johan E.; Eide, Ingvar et al. (2012). Extracting Homologous Series from Fingerprint Mass Spectrometry Data of Bio-Oils: A Complement to PCA. (external link)
• Løhre, Camilla; Barth, Tatjana; Holmelid, Bjarte (2012). The Effect of Reaction Conditions on Composition and Quality of Bio-Oils from Lignin Solvolysis. (external link)
• Løhre, Camilla; Barth, Tatjana; Holmelid, Bjarte (2012). The Effect of Reaction Conditions and Reaction Medium on the Output and Composition of Bio-Oils from Lignin Solvolysis. (external link)
• Øyaas, Karin; Toven, Kai; Johnsen, Ingvild Andersen et al. (2012). The LignoRef project: A national research initiative to enhance biorefinery process developments in Norway. (external link)
• Nkansah, Marian Asantewah; Christy, Alfred Antony; Barth, Tanja (2011). A Preliminary Study on Adsorption of PAH from Water by (Lightweight Expanded Clay Aggregate) LECA. (external link)
• Barth, Tanja; Holmelid, Bjarte; Kleinert, Mike (2011). Comparing Hydrogen Donors for Solvolytic Lignin Hydrodeoxygenation. (external link)
• Nkansah, Marian Asantewah; Christy, Alfred Antony; Barth, Tanja (2011). Catalytic redox hydrous pyrolysis degradation of anthracene, fluorene and fluoranthene. (external link)
• Gasson, James Richard; Barth, Tanja; Kleinert, Mike et al. (2011). Mass Spectrometry Approaches to Analysis of Lignocellulosic Biomass Conversion supported by modern Data Analysis. (external link)
• Gasson, James Richard; Carlson, Johan E.; Eide, Ingvar et al. (2011). Deciphering Complex Bio-Oil Mass Spectra with the Help of Chemometrics. (external link)
• Vaular, Espen Nesheim; Corak, Djurdjica; Barth, Tanja (2010). Isotope fractionation during hydrate formation. (external link)
• Nkansah, Marian Asantewah; Christy, Alfred Antony; Barth, Tanja (2010). Reactivity of anthracene under different supercritical hydrous pyrolysis conditions. (external link)
• Barth, Tanja; Erstad, Kristin; Hvidsten, Ina V. et al. (2009). The effect of biodegradation on the physical properties of some crude oils. (external link)
• Kleinert, Mike; Barth, Tanja (2008). Solvolytic approach of biomass pyrolysis - The lignin-to-liquid process. (external link)
• Kleinert, Mike; Barth, Tanja (2008). Novel solvolytic approach of biomass pyrolysis. (external link)
• Vaular, Espen Nesheim; Barth, Tanja (2008). Organic analysis of sediments in natural gas hydrate deposits on the Mid-Norwegian margin. (external link)
• Kleinert, Mike; Barth, Tanja (2008). One-step Conversion of lignin to oxygen-depleted bio-fuels and phenols. (external link)
• Aspenes, Guro; Høiland, Sylvi; Borgund, Anna Elisabet et al. (2008). Wettability of petroleum pipelines: influence of crude oil in relation to hydrate deposition. (external link)
• Barth, Tanja; Strand, Morten (2007). AN IMPROVEDTITRATION METHOD FOR DETERMINATION OF ACID AND PHENOL CONTENT IN CRUDE OILS COMPARED TO EXTRACTION AND HPLC CHARACTERISATION. (external link)
• Talatori, Shiva; Genov, Georgi Yordanov; Fotland, Per et al. (2007). DIFFERENTIAL GAS CONSUMPTION DURING GAS HYDRATE FORMATION IN THREE-COMPONENT GAS MIXTURE – DRIVING FORCE IMPLICATIONS. (external link)
• Genov, Georgi Yordanov; Skaare, Bent; Nodland, Egil et al. (2007). FT-IR STUDIES OF BULK OIL SOLVENT PROPERTIES AND NATURAL HYDRATE-INHIBITING COMPONENTS (NICS) IN CRUDE OILS. (external link)
• Skaare, Bent; Nodlan, Egil; Ommedal, Hege et al. (2007). UNRAVELLING INITIAL BIODEGRADATION OF CRUDE OIL USING PRINCIPAL COMPONENT ANALYSIS. (external link)
• Erstad, Kristin; Borgund, Anna Elisabeth; Høiland, Sylvi et al. (2007). Crude oil acid fractions and their hydrate plug inhibiting properties. (external link)
• Pedersen, Bent Skaare; Mills, Nigel; Wilkes, Heinz et al. (2005). Biodegradation of Crude Oil on the Norwegian Continental Shelf. (external link)
• Barth, Tanja; Erstad, Kristin; Negash, Tadesse (2005). TAN and TBN determination of acids and bases in crude oils compared with extraction and molecular analysis. (external link)
• Pedersen, Bent Skaare; Ommedal, Hege; Brekke, Trond et al. (2004). Biodegradation of the light hydrocarbons in crude oil by sulfate-reducing bacteria. (external link)
• Ommedal, Hege; Pedersen, Bent Skaare; Barth, Tanja et al. (2004). Bacterial growth on crude oil and oil components under sulfate reducing conditions. (external link)

Doctoral dissertation

• Ghoreishi, Solmaz; Barth, Tanja (2020). Large-scale conversion of lignin to liquid through formic acid assisted solvolysis in aqueous and ethanolic reaction media: comparison of yields and product compositions. (external link)
• Løhre, Camilla; Barth, Tanja (2017). The effect of input material pretreatment on product yield and composition of bio-oils from LtL-solvolysis. A continuous process for organosolv fractionation of lignocellulosic biomass and solvolytic conversion of lignin. (external link)
• Hvidsten, Ina; Barth, Tanja; Bødtker, Gunhild (2017). The Actinomycete Dietzia sp. A14101. Microbial Biosurfactants: A Semi-Quantitative Study of a Gram-Positive Bacterial Strain. (external link)
• Oregui Bengoetxea, Mikel; Barth, Tanja (2016). Formic acid aided catalytic lignin conversion in ethanol and water media. (external link)
• Borgund, Anna Elisabet; Barth, Tanja (2007). Crude oil components with affinity for gas hydrates in petroleum production. (external link)
• Pedersen, Bent Skaare; Barth, Tanja; Torsvik, Terje (2007). Effects of initial anaerobic biodegradation on crude oil and formation water composition”. (external link)
• Ommedal, Hege; Barth, Tanja; Torsvik, Terje (2007). Hydrocarbon degradation under sulphate-reducing conditions – The implications of sea water flooding and produced water re-injection on reservoir souring. (external link)
• Barth, Tanja (1983). En kartlegging av polare forbindelser i råolje og forvitret råolje. (external link)

Report

• Ghoreishi, Solmaz; Løhre, Camilla; Barth, Tanja (2020). NMR analysis of effluents/condensates and filtrates from steam explosion and multivariate data analysis of the generation of furfural and some other valuable organic components: yields and concentrations. (external link)
• Ghoreishi, Solmaz; Løhre, Camilla; Mayhew, Heidi Marina Hammer et al. (2020). Chemical analysis of condensate and pressed water from steam explosion of chlorine containing wood. (external link)
• Løhre, Camilla; Barth, Tanja (2018). Composition of the liquid fraction originating from steam explosion of wood chips from various species. (external link)
• Løhre, Camilla; Barth, Tanja (2017). Distillation and Total Organic Carbon measurement of condensates from steam explosion of wood chips. (external link)
• Laake, M.; Fjellheim, Arne; Barth, Tanja (1998). Resipientundersøkelser i Skienselva. Union Bruk 1996-1997. (external link)
• Barth, Tanja; Skipnes, Kolbjørn (1998). Fingerprintanalyser av olje på ilanddrevne sjøfugler i Rogaland. (external link)
• Aarø, L.E.; Barth, Tanja; Lippe, A. von der et al. (1994). Forebyggende rusmiddelarbeid i Norden. Fremmer det helsen? I: Abstractbook (=Nordiske Psykologikongress. 22. Oslo, 7.-10. sept. 1994). (external link)

Lecture

• Brusletto, Rune; Marcotullio, Gianluca; Kleinert, Mike et al. (2019). Recovering furfural from the aqueous waste stream in ArbacoreTM brown pellets production. (external link)
• Løhre, Camilla; Barth, Tanja; Brusletto, Rune (2017). Pellets instead of coal in thermal power plants. (external link)
• Kleinert, Mike; Barth, Tanja (2013). Synergies in the utilisation of lignocellulose: Lignin valorisation for platform chemicals. (external link)

Masters thesis

• Lid Johannesen, Malene; Barth, Tanja; Gauteplass, Jarand (2018). Clathrate hydrate formation in different chemical environments relevant to subsurface CO2 storage. (external link)
• Vaular, Espen Nesheim; Barth, Tanja (2005). Implementering av mikropyrolyse ved Universitetet i Bergen. (external link)
• Negash, Tadesse tefera; Barth, Tanja (2004). Distribution of petroleum acids in crude oils and distillate fractions. (external link)

Academic chapter/article/Conference paper

• Gauteplass, Jarand; Torsvik, Anja; Barth, Tanja (2017). Rheology of CO2 - CH4 hydrates measured in a concentric pressure cell. (external link)
• Storø, Hans Martin; Barth, Tanja (2014). Miljømessige og økonomiske effekter av produksjon av biodrivstoff fra trevirke i et bioraffineri - utvikling av LtL prosessen som et lokalt bidrag. (external link)
• Nielsen, S.B.; Barth, Tanja; Dahl, L.C. (1996). Inverse estimations of parameters in petroleum reaction networks. (external link)

Popular scientific lecture

• Barth, Tanja (2011). Drivstoff fra trær - Fornybart alternativ når oljen er brukt opp?. (external link)
• Barth, Tanja; Guldbrandsen, A. (1994). Kromatografisk karakterisering av petroleumsfraksjoner ved "gel permeation" kromatografi. (external link)
• Barth, Tanja; Noreide, E. (1994). Chemometric treatment of FT-IR spectra of Crude Oils for Selection and Imterpretation of Experimental Systems. (external link)
• Barth, Tanja; Schmidt, Birthe J.; Nielsen, S.B. (1994). Two-dimensianal kinetic modelling of petroleum generation - how well do kinetic parameters form open pyrolysis describe simulated maturation results?. (external link)
• Barth, Tanja; Cappelen Dahl, L.; Nielsen, S. B. (1994). Kinetic modelling of petroleum generation reactions. Methods and examples. (external link)
• Barth, Tanja; Nielsen, S. B.; Schmidt, B. J. (1994). Petroleums generation potentials and kinetics form open pyrolysis and simulated maturation - do they correspond?. (external link)
• Schmidt, Birthe J.; Barth, Tanja (1993). Discussion of "kerogen typing" based on data from artificial maturation (hydrous pyrolysis), kinetics calculation and optical analyses. (external link)
• Barth, Tanja (1993). "Diagenetically active organic compounds - generation, migration and effects on reservoir porosity and permeability". (external link)
• Barth, Tanja (1993). "Hydrous pyrolysis of immature source rocks as a technique of simulated maturation - uses and limitations". (external link)
• Barth, Tanja; Borgund, Anna Elisabet; Christy, A. A. (1992). Organic compounds absorbed onto mineral surfaces from crude oils: Dependence on Chemical environment (Presented by Barth). (external link)

Interview

• Barth, Tanja (2009). ”Trær på tanken med sprit og syre”. (external link)

Thesis at a second degree level

• Erstad, Kristin; Barth, Tanja (2004). Baser og Asfaltener i Petroleum. (external link)

Feature article

• Barth, Tanja; Abbott, G. (1999). Optimisation of biomass pyrolysis for luid fuel production. (external link)

Compendium

• Barth, Tanja (1998). Analyse av olje på strandet sjøfugl. (external link)
• Barth, Tanja (1997). Report: Comments to document 'Composition and properties of produced water' Bjørn Bringedal, ABB. Rapport om organiske forbindelser i formasjonsvann som kan påvirke måling av dipergert olje i vann online. (external link)
• Barth, Tanja (1997). Report: Anvendelse av kapilær elektroforese i petroleumsrelatert analyse. Metodeevaluering til Norsk Hydro v. Arnd. Wilhelms. (external link)
• Barth, Tanja (1997). Report: Analysis of Ekofisk formation water for unknown acid component, and correlation studies on formation water composition. Til Aly A. Hamouda, Philips. (external link)

See a complete overview of publications in Cristin.