Development of a hot-gas-cleanup system for integrated coal-gasification/molten-carbonate fuel-cell power plants. Quarterly report No. 2, January 1-March 31, 1983. [Cobalt aluminate and manganese oxide]

Technical Report · Wed Jun 01 04:00:00 EDT 1983

OSTI ID:6072753

Anderson, G L; Berry, F O; John, M

Five metal oxide sorbents were selected for laboratory-scale testing of their sulfur removal characteristics, sulfur removal capacities, and elemental sulfur production capabilities for use in the high-temperature sulfur removal process. These were (1) manganous oxide, MnO; (2) cobalt aluminate, CoAl/sub 2/O/sub 4/; (3) iron chromite, FeCr/sub 2/O/sub 4/; (4) iron orthosilicate, Fe/sub 2/SiO/sub 4/; and (5) cobalt titanate, Co/sub 2/TiO/sub 4/. Laboratory-scale fixed-bed reactor studies in a 1-inch OD Schedule 40 refractory-lined 316SS reactor were completed this quarter with the cobalt aluminate and manganous oxide sorbents. Both sorbents exhibited useful sulfur removal capacities. However, neither sorbent produced elemental sulfur during regeneration in the proportions expected. Two molten alkali carbonate mixtures were selected for laboratory-scale testing of their HCl removal capabilities at 1200/sup 0/F. The molten alkali mixtures chosen were a 52% lithium carbonate/48% sodium carbonate mixture and a 43% lithium carbonate/57% potassium carbonate mixture with melting points of 925/sup 0/ and 910/sup 0/F, respectively. The porous ceramic selected for supporting the molten carbonate mixtures was magnesia, MgO. Several cylindrical pellets of the MgO-supported 52% lithium/48% sodium carbonate mixture were prepared and characterized this quarter. Several alkali-carbonate-containing ceramic pellets from the IGT thermal energy storage program were also secured for testing purposes. This included Na/sub 2/CO/sub 3//MgO and Na/sub 2/CO/sub 3//NaAlO/sub 2/ pellets and an NaAlO/sub 2/-supported 52% lithium/48% sodium molten carbonate mixture. These pellets will be useful for comparison testing. Progress was also made this quarter in assembling the supporting equipment.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• DOE Contract Number: AC21-82MC19403
• OSTI ID: 6072753
• Report Number(s): DOE/MC/19403-2; ON: DE83012608
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010404 -- Coal
Lignite
& Peat-- Gasification
30 DIRECT ENERGY CONVERSION
300500 -- Fuel Cells
ADSORBENTS
ALKALI METAL COMPOUNDS
ALUMINATES
ALUMINIUM COMPOUNDS
BENCH-SCALE EXPERIMENTS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
COAL GASIFICATION
COBALT COMPOUNDS
DATA
DESULFURIZATION
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
FUEL CELL POWER PLANTS
FUEL CELLS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
HIGH-TEMPERATURE FUEL CELLS
HOT GAS CLEANUP
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
IRON COMPOUNDS
IRON SILICATES
LITHIUM CARBONATES
LITHIUM COMPOUNDS
MANGANESE COMPOUNDS
MANGANESE OXIDES
MOLTEN CARBONATE FUEL CELLS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
POWER PLANTS
PURIFICATION
REMOVAL
RESEARCH PROGRAMS
SILICATES
SILICON COMPOUNDS
SODIUM CARBONATES
SODIUM COMPOUNDS
SULFUR
TESTING
THERMOCHEMICAL PROCESSES
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS