Hydropyrolysis of biomass [electronic resource].
- Imprint
- Washington, D.C. : United States. Environmental Protection Agency ; Oak Ridge, Tenn. : distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1992
- Physical description
- 1 online resource (Pages: (23 p) ) : digital, PDF file.
Online
Available online
Description
Creators/Contributors
- Contributor
- Brookhaven National Laboratory Researcher
- United States. Environmental Protection Agency Sponsor
- United States. Environmental Protection Agency Sponsor
- United States. Dept. of Energy. Office of Scientific and Technical Information. Distributor
- Steinberg, M. Author
- Kobayashi, Atsushi Author
Contents/Summary
- Summary
- 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.
Subjects
- Subject
- Biomass.
- Gasification.
- Pyrolysis.
- Carbon Monoxide.
- Synthesis.
- Methane.
- Pyrolysis Products.
- Thermal Gravimetric Analysis.
- Alkanes.
- Carbon Compounds.
- Carbon Oxides.
- Chalcogenides.
- Chemical Analysis.
- Chemical Reactions.
- Decomposition.
- Energy Sources.
- Gravimetric Analysis.
- Hydrocarbons.
- Organic Compounds.
- Oxides.
- Oxygen Compounds.
- Quantitative Chemical Analysis.
- Renewable Energy Sources.
- Thermal Analysis.
- Thermochemical Processes.
- Biomass Fuels.
Bibliographic information
- Publication date
- 1992
- Note
- Published through SciTech Connect.
- 01/01/1992.
- "bnl-47158"
- "DE92010164"
- Steinberg, M.; Kobayashi, Atsushi.
- Funding Information
- AC02-76CH00016
