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A novel approach to highly dispersing catalytic materials in coal for gasification [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1991.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: (12 pages) : digital, PDF file
Additional Creators
Clark Atlanta University, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
This project seeks to develop a technique, based on coal surface properties, for highly dispersing catalysts in coal for gasification and to investigate the potential of using potassium carbonate and calcium acetate mixtures as catalyst for coal gasification. The lower cost and high catalytic activity of the latter compound will produce economic benefits by reducing the amount of K₂CO₃ required for high coal char activities. The effects of potassium impregnation conditions (pH and coal surface charge) on the reactivities, in carbon dioxide, of chars derived from demineralized lignite, subbituminous and bituminous coals have been determined. Impregnation of the acid-leached coal with potassium from strongly acidic solutions resulted in initial slow char reactivity which progressively increased with reaction time. Higher reactivities were obtained for catalyst (potassium) loaded at pH 6 or 10. The dependence of char gasification rates on catalyst addition pH increased in the order: pH 6 ∼ pH 10 {much gt} pH 1.
Report Numbers
E 1.99:doe/pc/89760-t6
doe/pc/89760-t6
Subject(s)
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Note
Published through SciTech Connect.
01/01/1991.
"doe/pc/89760-t6"
"DE92004867"
Abotsi, G.M.K.; Bota, K.B.
Funding Information
FG22-89PC89760
View MARC record | catkey: 13842446