Hydropyrolysis of biomass [electronic resource].
- Washington, D.C. : United States. Environmental Protection Agency, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: (23 pages) : digital, PDF file
- Additional Creators:
- Brookhaven National Laboratory, United States. Environmental Protection Agency, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The pyrolysis and hydropyrolysis of biomass was investigated. Experimental runs using the biomass (Poplar wood sawdust) were performed using a tubular reactor of dimensions 1 inch inside diameter and 8 feet long heated at a temperature of 800 C and pressures between 450 and 750 psig. At low heat-up rate the reaction precedes in two steps. First pyrolysis takes place at temperatures of 300 to 400 c and subsequent hydropyrolysis takes place at 700 C and above. This is also confirmed by pressurized thermogravimetric analysis (PTGA). Under conditions of rapid heat-up at higher temperatures and higher hydrogen pressure gasification and hydrogasification of biomass is especially effective in producing carbon monoxide and methane. An overall conversion of 88 to 90 wt % of biomass was obtained. This value is in agreement with the previous work of flash pyrolysis and hydropyrolysis of biomass for rapid heat-up and short residence time. Initial rates of biomass conversion indicate that the rate increases significantly with increase in hydrogen pressure. At 800 C and 755 psig the initial rate of biomass conversion to gases is 0.92 1/min.
- Report Numbers:
- E 1.99:bnl-47158
- Other Subject(s):
- Carbon Monoxide
- Pyrolysis Products
- Thermal Gravimetric Analysis
- Carbon Compounds
- Carbon Oxides
- Chemical Analysis
- Chemical Reactions
- Energy Sources
- Gravimetric Analysis
- Organic Compounds
- Oxygen Compounds
- Quantitative Chemical Analysis
- Renewable Energy Sources
- Thermal Analysis
- Thermochemical Processes
- Published through SciTech Connect.
Steinberg, M.; Kobayashi, Atsushi.
- Funding Information:
View MARC record | catkey: 13819468