A5033840503- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Thermochemical Biomass Conversion Processes
- Catalysis and Hydrodesulfurization Studies
- Industrial Gas Emission Control
- Catalysis and Oxidation Reactions
- Carbon Dioxide Capture Technologies
- Coal Combustion and Slurry Processing
- Iron and Steelmaking Processes
- Advancements in Solid Oxide Fuel Cells
- Chemical Looping and Thermochemical Processes
- Catalysis for Biomass Conversion
- Heat transfer and supercritical fluids
- Hybrid Renewable Energy Systems
- Lignin and Wood Chemistry
- Process Optimization and Integration
- Semiconductor materials and devices
- Biodiesel Production and Applications
- Biofuel production and bioconversion
- Plasma Applications and Diagnostics
- Renewable energy and sustainable power systems
- Petroleum Processing and Analysis
- Fuel Cells and Related Materials
- Research in Social Sciences
- Ammonia Synthesis and Nitrogen Reduction
VTT Technical Research Centre of Finland
2012-2022
Tieto (Finland)
2022
Catalytic Materials (United States)
1992-2013
Tar decomposition over a dolomite catalyst in gasification conditions was modeled using benzene as tar model compound. The reactions of the gas main components were included models studied. Kinetic studies carried out at 750−925 °C and under ambient pressure plug flow reactor mixture simulated gas. Operation without external or internal mass-transfer limitations applied. Mechanistic Langmuir−Hinshelwood type describing developed tested. Experimental results could be best described by kinetic...
Dry-bed adsorptive desulfurization of biomass-based syngas with low to medium sulfur content using ZnO was investigated as an alternative the conventional wet scrubbing processes. The technical feasibility ZnO-based studied in laboratory-scale H2S breakthrough experiments. experiments were set up utilize realistic concentrations from gasification and therefore long times. Experiments performed a steam-rich model biosyngas varying conditions. long-term showed apparent utilization rates...
The complete and economic removal of harmful components from biomass gasification-based syngas is a major challenge. A final gas cleaning concept for purification to catalytic synthesis quality was developed as an alternative organic-solvent scrubbing technologies. motivation present smaller-scale BTL processes with potentially lower-capex solution. purpose this study realize validate the in real environment longer-term performance deep cleaning. Two successful PDU-scale campaigns...
Tar decomposition over dolomite catalyst in gasification conditions was modeled by benzene reaction with CO2. Kinetic studies were carried out at 1023−1173 K and ambient pressure a plug flow reactor. Operation without external or internal mass transfer limitations used. Mechanistic models of the Langmuir−Hinshelwood type describing derived tested. Experimental results could be best described kinetic equation where single-site adsorption on rate-determining step CO2 took place nondissociatively.
The products from slow pyrolysis of birch hardwood are promising to be used for various purposes, in addition conventional charcoal. To evaluate their utilization, knowledge about polycyclic aromatic hydrocarbons (PAHs) is needed. content and distribution the PAHs different were determined a test run with typical carbonization retort. PAH compositions gases, distillates including aqueous phases tars, followed terms time retort temperature. Also, other compounds gases through analyzed. found...
In this work, catalyst screening and reaction kinetic modeling are performed for two Ni-based one Rh-based commercial catalysts a reverse water gas shift (rWGS) under atmospheric 30 bara pressure. displayed higher activity compared to despite the severe initial deactivation suffered, which increases selectivity toward CO formation. Ni/Al2O3 with lower Ni content (2 w-%) exhibited formation (15 wt %). The % of Ni) was further tested modeling. Three models were developed based on mechanisms...