• A thermogravimetric and kinetic study on devolatilization of woody biomass 

      Zabalo Alonso, María (Master thesis, 2016)
      Biomass is a promising energy resource for a more sustainable global energy outlook. Thermochemical conversion of biomass is a very attractive and important technology for energy generation and production of value-added ...
    • Biocarbonization process for high quality energy carriers: Techno-economics 

      Kempegowda, Rajesh Shivanahalli; Skreiberg, Øyvind; Tran, Khanh-Quang (Journal article; Peer reviewed, 2017)
      This work deals with a process design and techno-economic analysis (TEA) of the enablement of biocarbonization processes for production of biocarbon, biocrude, biomethane, biofertilizer and heat. Three case scenarios are ...
    • CFD modeling for direct liquefaction of biomass in hydrothermal media 

      Syed, Alizeb Hussain (Master thesis, 2013)
      The first generation biofuels which is coming from food crops for instance grain and sugar beet are inadequate to achieve desirable oil products because of the scarcity to food supply, therefore the importance of second ...
    • CFD modelling and simulation of Nozzle reactor for fast Hydrothermal Liquefaction 

      Cocco, Gastón Mauricio (Master thesis, 2018)
      Hydrothermal Liquefaction is a promising technology for converting plant biomass directly to liquid with better fuel properties compared to traditional fast pyrolysis. The technology employs water, in subcritical conditions ...
    • CO2 Gasification of Charcoals in the Context of Metallurgical Application 

      Bui, Hau-Huu; Wang, Liang; Tran, Khanh-Quang; Skreiberg, Øyvind; Luengnaruemitchai, Apanee (Journal article; Peer reviewed, 2017)
      The CO2 gasification reactivity of Norwegian spruce charcoals from stem wood and its forest residue produced at different pressures was investigated in the present study. The gasification behavior was analyzed thermograv ...
    • CO2 Gasification of Charcoals Produced at Various Pressures 

      Bui, Hau-Huu; Wang, Liang; Tran, Khanh-Quang; Skreiberg, Øyvind (Journal article; Peer reviewed, 2016)
      In this work, stem wood and branches and tops of Norwegian spruce and birch were carbonized at different pressures, producing charcoals of which the CO2 gasification reactivity was studied by means of a thermogravimetric ...
    • CO2 reactivity assessment of woody biomass biocarbons for metallurgical purposes 

      Wang, Liang; Hovd, Benedicte; Bui, Hau-Huu; Valderhaug, Aasgeir Mikael; Videm Buø, Therese; Birkeland, Rolf Gunnar; Skreiberg, Øyvind; Tran, Khanh-Quang (Journal article; Peer reviewed, 2016)
      Replacing the use of fossil reductants with biocarbons in metallurgical industries has a great potential with respect to reducing CO2 emissions and the contribution from this industry to the increasing greenhouse gas effect. ...
    • Effects of wet torrefaction on reactivity and kinetics of wood under air combustion conditions 

      Bach, Quang Vu; Tran, Khanh-Quang; Skreiberg, Øyvind; Khalil, Roger Antoine; Phan, N. Anh (Journal article; Peer reviewed, 2014)
      This work continues our assessment of wet torrefaction for energy applications, looking at effects of the process parameters (temperature, holding time and pressure) on the reactivity and intrinsic kinetics of wood under ...
    • Fast hydrothermal liquefaction of biomass-Development of a plug-flow reactor 

      Villarreal Salcedo, Manuel (Master thesis, 2017)
      Hydrothermal liquefaction is a promising technology for converting plant biomass directly to liquid with better fuel properties compared to traditional fast pyrolysis. The technology employs water, in subcritical conditions ...
    • Fast hydrothermal liquefaction of native and torrefied wood 

      Tran, Khanh-Quang; Klemsdal, Aksel Junge; Zhang, Wennan; Sandquist, Judit; Wang, Liang; Skreiberg, Øyvind (Journal article; Peer reviewed, 2017)
      The work presented in this paper aimed to examine the effect of heating rate on the bio-crude yield of wood hydrothermal liquefaction. Three different heating methods were developed, resulting in heating rates ranging from ...
    • High-throughput experiments for direct liquefaction of biomass in hydrothermal media 

      Valcuende Sillero, Miguel (Master thesis, 2013)
      This project will experimentally assess the use of hydrothermal media for direct liquefaction of biomass for the obtainment of biofuels, using a high throughput experiment technique with different heating methods in quartz ...
    • Optimizaton of fast hydrothermal liquefaction of biomass 

      Klemsdal, Aksel Junge (Master thesis, 2016)
      Fossil liquid oil possesses many properties that have made it one of our primary sources of energy on which modern societies are highly dependent on. With the growing concern of fossil fuels impact on the environment, there ...
    • Simultaneously boosting the mass and fixed-carbon yields of charcoal from forest residue via atmospheric carbonization 

      Tran, Khanh-Quang; Alonso, Maria Zabalo; Wang, Liang; Skreiberg, Øyvind (Journal article; Peer reviewed, 2017)
      The carbonization of various forest residues in comparison with their stem wood was studied by means of thermogravimetric analyzer operated non-isothermally at atmospheric pressure with a heating rate of 10K/min and a final ...
    • Techno-economic assessment of thermal co-pretreatment and co-digestion of food wastes and sewage sludge for heat, power and biochar production 

      Kempegowda, Rajesh Shivanahalli; Skreiberg, Øyvind; Tran, Khanh-Quang; Selvam, P V Pannir (Journal article; Peer reviewed, 2017)
      This study deals with techno-economic assessments of three system scenarios combining various conversion technologies including co-digestion, hydro-methanation, syngas production and integration, thermodynamic and ...