Development of novel copper-based sorbents for hot-gas cleanup. [Quarterly] technical report, March 1, 1993--May 31, 1993

Technical Report · Wed Sep 01 04:00:00 EDT 1993

DOI:https://doi.org/10.2172/10175510· OSTI ID:10175510

Hill, A H; Abbasian, J ^[1]; Flytzani-Stephanopoulos, M; Li, Li ^[2]

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1. Institute of Gas Technology, Chicago, IL (United States)
2. Massachusetts Inst. of Tech., Cambridge, MA (United States)

The objective of this investigation is to evaluate two novel copper-based sorbents (i.e. copper-chromium and copper-cerium) for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650{degrees} to 850{degrees}C. In this program, structural and kinetic studies are conducted on various compositions of the two selected copper-based sorbents to determine the optimum sorbent composition. The effect of operating conditions on the performance of the sorbents alone with the stability and regenerability of the selected sorbents in successive sulfidation/regeneration operation are determined. Parametric multicycle desulfurization tests were conducted this quarter in a bench-scale (5-cm-diameter) quartz reactor at one atmosphere using the CuCr{sub 2}O{sub 4} and CuO/CeO{sub 2} sorbents. The parameters studied included temperature, space velocity, and feed gas composition. Both sorbents were able to reduce the H{sub 2}S concentration of the reactor feed gas to <10 ppM under all conditions tested. The apparent reactivity of the CuO/CeO{sub 2} sorbent was lower after the first cycle which may be attributed to incomplete regeneration caused by sulfate formation.

• Research Organization: Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-92PC92521
• OSTI ID: 10175510
• Report Number(s): DOE/PC/92521--T64; ON: DE93019814
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402
010404
CALCINATION
CERIUM OXIDES
CHEMICAL REACTION KINETICS
CHROMIUM OXIDES
COAL GASIFICATION
COPPER OXIDES
FUEL GAS
GASIFICATION
HOT GAS CLEANUP
HYDROGEN SULFIDES
PROGRESS REPORT
PURIFICATION AND UPGRADING
REGENERATION
REMOVAL
SORPTIVE PROPERTIES
STABILITY
SULFIDATION
SURFACE AREA