Fundamental studies of catalytic gasification

Technical Report · Fri Sep 01 04:00:00 EDT 1989

DOI:https://doi.org/10.2172/7271333· OSTI ID:7271333

Heinemann, H.; Somorjai, G. A.

Progress is reported on the role of catalysts during relatively low temperature steam gasification. This quarter, samples of three coals were obtained from IGT. These are the parent coals of the chars which have been used in earlier work. They comprise a subbituminous (Rosebud) and two bituminous coals (Ohio, Pitt {number sign}8 and Kentucky {number sign}13). An analysis of these coals is given. The coals were subjected to steam gasification at 640{degree}C both in the absence of and in the presence of K--Ca--O catalyst. When the catalyst was used, it was impregnated on the coal by an aqueous nitrate solution containing equimolecular amounts of K and Ca. The procedure used and the nitrate decomposition treatment were the same as previously described for chars and graphite. In order to test the necessity of using relatively expensive potassium as a catalyst component, gasification of the Ohio Pitt {number sign}8 coal was undertaken employing a Na--Ca catalyst. A catalyst comprising cesium-calcium was also tested. 10 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7271333
• Report Number(s): LBL-27805; ON: DE90008063
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ADDITIVES
ALKALI METALS
ALKALINE EARTH METALS
ALKANES
CALCIUM
CARBON
CATALYSTS
CATALYTIC EFFECTS
CHARS
COAL GASIFICATION
COMPARATIVE EVALUATIONS
DEACTIVATION
DOCUMENT TYPES
ELEMENTAL MINERALS
ELEMENTS
GASIFICATION
GRAPHITE
HYDROCARBONS
METALS
METHANE
MINERALS
NICKEL
NONMETALS
ORGANIC COMPOUNDS
POTASSIUM
PROGRESS REPORT
PYROLYSIS PRODUCTS
SODIUM
STEAM
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS