A5017333759- Thermochemical Biomass Conversion Processes
- Lignin and Wood Chemistry
- Subcritical and Supercritical Water Processes
- Catalysts for Methane Reforming
- Catalysis and Hydrodesulfurization Studies
- Coal and Its By-products
- Flame retardant materials and properties
- Biofuel production and bioconversion
- Catalytic Processes in Materials Science
- Biodiesel Production and Applications
- Zeolite Catalysis and Synthesis
- Coal Combustion and Slurry Processing
- Thermal and Kinetic Analysis
- activated carbon and charcoal
- Petroleum Processing and Analysis
- Anaerobic Digestion and Biogas Production
- Bioenergy crop production and management
- Energy and Environment Impacts
- Mesoporous Materials and Catalysis
- Chemical Looping and Thermochemical Processes
- Catalysis and Oxidation Reactions
- Forest Biomass Utilization and Management
- Algal biology and biofuel production
- Industrial Gas Emission Control
- Hydrocarbon exploration and reservoir analysis
Norwegian University of Science and Technology
2016-2025
Laboratoire d’Océanologie et de Géosciences
2025
Ho Chi Minh City Medicine and Pharmacy University
2024
Trondheim Kommune
2015-2017
SINTEF
2012-2015
Norwegian University of Life Sciences
2008-2009
Finland University
2009
University of Eastern Finland
2007-2009
Chalmers University of Technology
2002-2004
Santa Clara University
1989-1990
Renewable and carbon neutral biofuels are necessary for environmental economic sustainability. The viability of the first generation production is however questionable because conflict with food supply. Microalgal a viable alternative. oil productivity many microalgae exceeds best producing crops. This paper aims to analyze promote integration approaches sustainable microalgal biofuel meet energy needs society. emphasis on hydrothermal liquefaction technology direct conversion algal biomass...
Wet torrefaction of typical Norwegian biomass fuels was studied within the temperature window 175–225 °C, using a benchtop autoclave reactor 250 mL in volume from Parr Instrument. Two types local were employed as feedstock, Norway spruce (softwood) and birch (hardwood). Effects process parameters including pressure, reaction temperature, holding time, feedstock particle size on yield properties solid products investigated. It appears that wood is more reactive produces less than same wet...
This work aims to analyze the torrefaction process with Norwegian birch and spruce as feedstocks. Torrefaction experiments were performed in a macro-TGA (thermogravimetric analysis) reactor provisions for continuous volatile measurements through micro-GC (gas chromatography) FTIR (Fourier transform infrared spectroscopy). The temperature (225 275 °C), holdup time (30 60 min), sample size (10 40 mm cubes) included variations experimental matrix. Fuel characterizations, DTG (derivative...
In this study, HTC impact on the waste straw fuel properties and hydrochars combustion kinetics have been presented. experiments were carried out at Parr 4650 250 ml batch reactor, temperatures of 225, 250, 275 °C. Each temperature was investigated 4 residence times: 10, 20, 30, 40 min. Denoted yields more influenced by than time, with different decomposition patterns observed °C compared to 225 °C, final solid 42.0%, 66.9%, 65.3% min times respectively. The study transient period resulted...
In this work, reactive molecular dynamics simulations using the ReaxFF force field were performed to investigate hydrothermal carbonization (HTC) process of sewage sludge. The focus was on reaction mechanism, effect water content and temperature formation different products. results showed that most important factor controlling HTC process, with higher temperatures leading more rapid reactions lower H/C O/C ratios in hydrochar product. estimated activation energy range 126–169 kJ/mol,...
In the context of circular economy and global shortage phosphorus (P) fertilizer production, it is crucial to effectively recover P during treatment disposal sewage sludge (SS). Although thermal SS has been widely applied, a targeted reclamation route not yet well established. This study comprehensively investigated compared physicochemical properties solid residues (hydrochar (HC), biochar (BC), ash (SSA), hydrochar (HCA), (BCA)) after application three typical techniques (i.e.,...
The formation of silicate oligomers in the early stages is key to zeolite synthesis. pH and presence hydroxide ions are important regulating reaction rate dominant species solutions. This paper describes species, from dimers 4-membered rings, using ab initio molecular dynamics simulations explicit water molecules with an excess ion. thermodynamic integration method was used calculate free energy profile condensation reactions. group's role not only control environment, but also actively...