Catalytic effects of alkali metal salts in the gasification of coal char
Conference
·
OSTI ID:5568073
A study has been made of the kinetics of gasification, in carbon dioxide and steam, of a char derived from Illinois No. 6 coal doped with small amounts of alkali metal salts. A progressive loss in catalytic activity was observed during the course of the steam gasification reaction at 700 to 1000/sup 0/C and on thermal cycling between gasification temperatures and 25/sup 0/C. This deactivation appeared to result from reaction of the alkali salts with mineral matter in the char. The catalytic behavior of the alkali carbonates are discussed in terms of sequences of elementary reactions involving interaction of the catalyst particles with the carbon substrate and with the gaseous environment.
- Research Organization:
- General Electric Co., Schenectady, NY (USA). Corporate Research and Development Dept.
- DOE Contract Number:
- AC21-80MC14591
- OSTI ID:
- 5568073
- Report Number(s):
- CONF-820304-2; ON: DE82000850
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ACETATES
ALKALI METAL COMPOUNDS
BITUMINOUS COAL
BLACK COAL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CARBONATES
CARBOXYLIC ACID SALTS
CATALYSIS
CATALYTIC EFFECTS
CHALCOGENIDES
CHARS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
DATA
DEACTIVATION
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GASIFICATION
INFORMATION
MATERIALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
PYROLYSIS PRODUCTS
STEAM
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE
010404* -- Coal
Lignite
& Peat-- Gasification
ACETATES
ALKALI METAL COMPOUNDS
BITUMINOUS COAL
BLACK COAL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CARBONATES
CARBOXYLIC ACID SALTS
CATALYSIS
CATALYTIC EFFECTS
CHALCOGENIDES
CHARS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
DATA
DEACTIVATION
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GASIFICATION
INFORMATION
MATERIALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
PYROLYSIS PRODUCTS
STEAM
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE