Fundamentals, development and scaleup of the air-oxygen stratified downdraft gasifier

Technical Report · Sat Aug 01 04:00:00 EDT 1987

OSTI ID:5206108

Reed, T B; Levie, B; Graboski, M S

Early in 1980 Dr. Thomas B. Reed of SERI and Professor M. Graboski of the Colorado School of Mines designed a stratified downdraft gasifier, a simplified derivative of the downdraft gasifiers developed and widely used duing World War II. The new design keeps the inherent ability of the downdraft gasifier to produce low-methane, low-tar product gas. This is due to the co-current flow of oxidant and feedstock in which the oxidant burns the pyrolysis products as they form. It departs from the earlier gasifiers with a streamlined geometry and fluid flow which simplifies modelling, scaling, construction, and operation. Modifications of the SERI design are now in use by a number of groups around the world. A 1 ton/day, prototype, high-pressure, oxygen, stratified-downdraft gasifier was built and operated using the facilities of the Hazen Research Corporation in Golden, Colorado.

• Research Organization: Solar Energy Research Inst., Golden, CO (USA)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 5206108
• Report Number(s): SERI/PR-234-2571; ON: DE88001157
• Country of Publication: United States
• Language: English

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CALORIFIC VALUE
CATALYTIC EFFECTS
CEDARS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COMBUSTION PROPERTIES
CRACKING
DECOMPOSITION
DESIGN
DOCUMENT TYPES
FLUIDS
FUEL SUBSTITUTION
GAS GENERATORS
GASES
MOISTURE
OPERATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PLANTS
PROGRESS REPORT
PYROLYSIS
SILICATES
SILICON COMPOUNDS
SYNTHESIS GAS
TAR
TECHNOLOGY TRANSFER
TESTING
THERMOCHEMICAL PROCESSES
THERMODYNAMICS
TREES
WOOD
YIELDS