Effects of residence time, temperature and pressure on the steam gasification of biomass
Gas phase, steam cracking reactions dominate the chemistry of biomass gasification. At temperatures above 650/sup 0/C these reactions proceed very rapidly and generate a hydrocarbon rich syngas containing commercially interesting amounts of ethylene, propylene and methane. Increased pressure appears to inhibit the gasification process. These results indicate that biomass gasifiers should be designed to provide for high heating rates and short residence times with gas phase temperatures exceeding 650/sup 0/C. Transport reactors, characterized by large throughputs, high heating rates, modest pressures and short residence times appear to be ideally suited for this purpose. Future biomass gasifiers should rely on steam cracking to produce fuels and chemicals; thereby resembling the technologies presently employed for ethylene production.
- Research Organization:
- Princeton Univ., NJ (USA). Dept. of Mechanical and Aerospace Engineering
- OSTI ID:
- 6357843
- Report Number(s):
- CONF-790415-10
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study of the steam gasification of organic wastes
Catalyzed steam gasification of biomass. Phase II. Final research report
Related Subjects
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
BIOMASS
CARBOHYDRATES
CELLULOSE
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
DESIGN
ENERGY SOURCES
GAS GENERATORS
GASIFICATION
KINETICS
ORGANIC COMPOUNDS
POLYSACCHARIDES
PRESSURE DEPENDENCE
PYROLYSIS
REACTION KINETICS
RECOMMENDATIONS
RENEWABLE ENERGY SOURCES
SACCHARIDES
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE