Novel concept development of an internal recirculation catalyst for mild gasification: Progress report, June 1-August 31, 1987
Results of 14 separate tests to investigate (1) the lack of CsOH volatility seen in the pyrolysis-gas chromatography tests using CsOH-catalyzed coals conducted during the previous quarter, and (2) the effect of H/sub 2/S in the carrier gas on products of mild gasification/devolatilization of Illinois No. 6 coal, are discussed herein. Three tests were conducted in a thermal gravimetric analyzer (TGA) to: (1) determine the volatility of pure cesium hydroxide in steam as a function of temperature and, (2) the effect of coal char on the volatility of CsOH under mild gasification conditions. The results of the cesium volatilization tests show that, as expected, pure cesium hydroxide volatilizes rapidly in steam at temperatures used in mild gasification. The addition of CsOH to coal char and activated carbon enhances their reactivity in steam at mild gasification temperatures while its addition to coal results in the production of more gas and less oils and tar than uncatalyzed coal under the same conditions. However, the results of these tests also indicate that CsOH and rendering it unsuitable as an internal recirculation catalyst. Three tests were also conducted this quarter PY-GC-FID to determine the effect of H/sub 2/S in the carrier gas on the products of mild gasification/devolatilization of Illinois No. 6 coal. The results of the coal pyrolysis tests with H/sub 2/S and He show no significant difference in the C/sub 6/-C/sub 44/ liquid production and distribution, and only a small (5 weight percent) increase in the overall coal conversion using H/sub 2/S. 2 refs., 11 figs., 12 tabs.
- Research Organization:
- USDOE Morgantown Energy Technology Center, WV
- DOE Contract Number:
- AC21-86MC23057
- OSTI ID:
- 6988224
- Report Number(s):
- DOE/MC/23057-2606; ON: DE88014718
- Country of Publication:
- United States
- Language:
- English
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Novel concept development of an internal recirculation catalyst for mild gasification: Progress report, March 1-May 31, 1987
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Related Subjects
010404* -- Coal
Lignite
& Peat-- Gasification
ALKALI METAL COMPOUNDS
CARBONACEOUS MATERIALS
CATALYSTS
CESIUM COMPOUNDS
CESIUM HYDROXIDES
CHARS
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CIRCULATING SYSTEMS
COAL
COAL GASIFICATION
DECOMPOSITION
DEVOLATILIZATION
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
GASIFICATION
GRAVIMETRIC ANALYSIS
HYDROGEN COMPOUNDS
HYDROXIDES
KINETICS
MATERIALS
MINERALS
OXYGEN COMPOUNDS
PROGRESS REPORT
PYROLYSIS
PYROLYSIS PRODUCTS
QUANTITATIVE CHEMICAL ANALYSIS
REACTION KINETICS
SEPARATION PROCESSES
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMOCHEMICAL PROCESSES