Mechanism of catalytic gasification of coal char. Quarterly progress report No. 12, October 1-December 31, 1983
Experiments are being performed to optimize the conversion of NaCl in the presence of carbon to an active steam gasification catalyst. During the past quarter we examined the effect on conversion of a variety of methods for addition of the NaCl to the carbonaceous material. These methods included admixture, wet impregnation and vapor deposition on Illinois No. 6 coal char and on a mineral-free carbon black, Spheron-6. Using temperature programmed reaction (TPR), we found modest enhancement in reactivity with steam of the catalyzed materials. But the degree of conversion of the NaCl to an active catalytic species was small. To understand the chemistry of the conversion process, we are examining the gaseous species in equilibrium with the NaCl-carbon admixtures using Knudsen cell mass spectrometry. These studies reveal that hydrolysis of NaCl in the presence of carbon and steam at subgasification temperatures is accompanied by a decrease in the thermodynamic activity of the NaCl. 6 references, 3 tables.
- Research Organization:
- SRI International, Menlo Park, CA (USA)
- DOE Contract Number:
- AC21-80MC14593
- OSTI ID:
- 6728860
- Report Number(s):
- DOE/MC/14593-T7; ON: DE84010311
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHARS
GASIFICATION
COAL GASIFICATION
CATALYSTS
SODIUM CHLORIDES
CATALYTIC EFFECTS
HYDROLYSIS
EXPERIMENTAL DATA
MASS SPECTROSCOPY
REACTION KINETICS
RESEARCH PROGRAMS
STEAM
TEMPERATURE DEPENDENCE
VERY HIGH TEMPERATURE
ALKALI METAL COMPOUNDS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
DATA
DECOMPOSITION
HALIDES
HALOGEN COMPOUNDS
INFORMATION
KINETICS
LYSIS
NUMERICAL DATA
PYROLYSIS PRODUCTS
SODIUM COMPOUNDS
SOLVOLYSIS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification