A novel approach to highly dispersing catalytic materials in coal for gasification
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 catalysts for coal gasification. The lower cost and high catalytic activity of the latter compound will produce economic benefits by reducing the amount of K{sub 2}CO{sub 3} required for high coal char reactivities. The work is focused on the elucidation of coal-catalyst precursor interactions in solution and the variables which control the adsorption and dispersion of coal gasification metal catalysts. In order to optimize coal-metal ion interactions and hence maximize catalyst activity, the study examines the surface electrochemistry of a lignite, a subbituminous, and a bituminous coals and their demineralized and oxidized derivatives prior to loading with the catalytic materials. The surface electrical properties of the coals are investigated with the aid of electrophoresis, while the effects of the surface charge on the adsorption of K{sup +} and Ca{sup 2+} are studied by agitating the coals with aqueous solutions of potassium and calcium. A zeta meter, a tube furnace, and other equipment required for the investigation have been acquired and installed. Preliminary work shows that the lignite (Psoc 1482) is negatively charged between pH 1.8 and pH 11.0 and has an isoelectric point of pH 1.8.
- Research Organization:
- Clark Atlanta Univ., GA (United States). Research Center for Science and Technology
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-89PC89760
- OSTI ID:
- 7026033
- Report Number(s):
- DOE/PC/89760-T9; ON: DE92019728
- Country of Publication:
- United States
- Language:
- English
Similar Records
A novel approach to highly dispersing catalytic materials in coal for gasification
A novel approach to highly dispersing catalytic materials in coal for gasification. Second quarterly report, January 1, 1990--March 31, 1990
Related Subjects
CALCIUM COMPOUNDS
CATALYTIC EFFECTS
COAL
ELECTROPHORESIS
COAL GASIFICATION
CATALYSTS
POTASSIUM CARBONATES
ACETATES
BITUMINOUS COAL
IMPREGNATION
LIGNITE
PROGRESS REPORT
SUBBITUMINOUS COAL
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BLACK COAL
BROWN COAL
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATES
CARBOXYLIC ACID SALTS
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
MATERIALS
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification