A5081349200- Thermochemical Biomass Conversion Processes
- Catalysis and Hydrodesulfurization Studies
- Lignin and Wood Chemistry
- Biofuel production and bioconversion
- Catalysts for Methane Reforming
- Energy and Environment Impacts
- Biodiesel Production and Applications
- Coal Combustion and Slurry Processing
- Advanced Battery Technologies Research
- Zeolite Catalysis and Synthesis
- Flame retardant materials and properties
- Iron and Steelmaking Processes
- Petroleum Processing and Analysis
- Catalytic Processes in Materials Science
- Material Properties and Applications
- Molten salt chemistry and electrochemical processes
- Graphite, nuclear technology, radiation studies
- Recycling and Waste Management Techniques
- Granular flow and fluidized beds
VTT Technical Research Centre of Finland
2013-2017
Bepress (United States)
2013
Catalytic fast pyrolysis of pine sawdust was successfully carried out in VTT's 20 kg h−1 Process Development Unit using a spray dried HZSM-5 catalyst. Approximately 250 partially deoxygenated oil produced over period four days. The catalytically had an average moisture content 8.3 wt%, and carbon oxygen contents 72.0 21.5 wt% on dry basis, respectively. 24% the original biomass present oil, whereas 14% form aqueous side products, which totaled approximately 600 kg. contained high amount...
Bio-oils were produced through intermediate (IP) and fast pyrolysis (FP), using Eucalyptus sp. (hardwood) Picea abies (softwood), wood wastes in large scale Pulp Paper industries. Characterization of these bio-oils was made GC/qMS GC×GC/TOFMS. The use GC×GC provided a broader characterization it allowed tracing potential markers hardwood bio-oil, such as dimethoxy-phenols, which might co-elute 1D-GC. Catalytic FP increased the percentage aromatic hydrocarbons P. indicating its for fuel...
Fast pyrolysis bio-oil oil is a promising alternative to fossil fuels and currently entering the heating market. However, there lack of available information about phase stability bio-oil. The water-soluble water-insoluble compounds in can either be one homogeneous or form two individual phases, which we refer as separation. Phase separation occur immediately after condensation vapors because certain conditions type raw material years aging changes composition caused by repolymerization...
Fast pyrolysis technology is currently moving forward to commercialization, and demonstration plants are at the commissioning stage. The quality of bio-oil differs significantly from fossil fuels, therefore, upgrading technologies needed improve fuel properties bio-oil. Co-processing in refinery fluid catalytic cracking (FCC) would have many economic advantages compared other because no essential modifications needed. However, its different chemical composition, introduction into FCC unit...
Abstract In this perspective, we discuss the standardization of analytical techniques for pyrolysis bio‐oils, including current status methods, and our opinions on future directions. First, history past efforts is summarized, both successful unsuccessful validation highlighted. The majority studies to‐date has tested only physical characterization techniques. Here, present results from an international round robin chemical bio‐oils. Techniques included acid number, carbonyl titrations using...
Abstract In situ catalytic fast pyrolysis can be used to produce partially upgraded bio‐oils. This process, however, suffers from rapid catalyst deactivation caused by coke formation, which necessitates the use of continuous regeneration. achieved using a circulating fluidized‐bed reactor. such reactor, one key operational variable is catalyst‐to‐biomass (C/B) ratio, influences extent reactions that take place. this study, woody biomass pyrolyzed in pilot‐scale reactor system HZSM‐5 zeolite...
Biomass is a promising alternative for the production of energy, novel materials, chemicals, and other valuable products. A certain degree processing required to achieve those results. Hydrothermal processes offer unique way obtain wide range biorefinery They can be considered as environmentally friendly processes, using solely water at different temperatures process medium convert abundant inexpensive biomass into We provide short overview on hydrothermal that use in its liquid state,...
In this study, noncatalytic and catalytic fast pyrolysis of forest thinnings was carried out in a bench-scale bubbling fluidized bed reactor using two commercial ZSM-5 catalysts. After the initial comparison experiments at 475 °C, catalyst which showed clearly higher activity further tested reaction temperatures 400 550 °C. The yield organic liquids, 39 wt % experiment, decreased to 14–24 depending on temperature. Varying temperature while also caused significant changes elemental...
The changes in chemical composition and physical properties that accompany bio-oil aging reactions have been studied earlier. However, one fundamental aspect of this transformation process has ignored. In article, we prove fast-pyrolysis bio-oils from woody biomass is an exothermic with notable heat generation under adiabatic conditions. characteristics several were a novel reaction calorimeter was made in-house. When typical stored at 50 °C for period 1 week, they exhibited overall...