Flash pyrolysis and hydropyrolysis of biomass
Process chemical data on the flash pyrolysis and hydropyrolysis of sawdust for liquid and gaseous hydrocarbon-fuel production was obtained in a 1-inch downflow entrained tubular reactor. At residence times of less than 1 second, 90-100 degrees, and 500 psi, the flash hydropyrolysis of wood yields mainly CH/sub 4/ and H/sub 2/O. As the residence time increased to more than 3 seconds, the products are CH/sub 4/ and CO. Almost complete conversion of the C to CH/sub 4/ and CO is obtained in these experiments. At approximately 800 degrees, 500 psi, and residence times less than 4 seconds, significant amounts of C/sub 6/H/sub 6/ and C/sub 2/H/sub 6/ are produced. The experimental process chemical data were used to design and evaluate 2 processes. One process converts wood to a high-Btu pipeline gas and the other to MeOH and chemical feedstocks consisting of C/sub 6/H/sub 6/ and C/sub 2/H/sub 4/. Reasonable plant investments which compare favourably with coal conversion plant estimates are derived.
- Research Organization:
- Dept Energy Environment, Brookhaven National Laboratory, Upton, NY 11973 USA
- OSTI ID:
- 6031505
- Journal Information:
- Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Vol. 1:17; ISSN PIECD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALCOHOLS
ALKANES
BIOMASS
CHEMICAL REACTIONS
COAL GASIFICATION
COAL LIQUEFACTION
DECOMPOSITION
DESIGN
ENERGY SOURCES
EVALUATION
FLASH HYDROPYROLYSIS PROCESS
FLUIDS
FUEL GAS
FUELS
FUNCTIONAL MODELS
GAS FUELS
GASES
GASIFICATION
HIGH BTU GAS
HYDROCARBONS
HYDROXY COMPOUNDS
LIQUEFACTION
METHANE
METHANOL
ORGANIC COMPOUNDS
PROCESS DEVELOPMENT UNITS
PYROLYSIS
RENEWABLE ENERGY SOURCES
SOLID WASTES
THERMOCHEMICAL PROCESSES
WASTES
WOOD
WOOD WASTES