Sorbent for use in hot gas desulfurization

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs

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55 73, 423230, 502407, B01J 2916, B01J 2016, B01J 2010, B01D 5334

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active

052273512

ABSTRACT:
A multiple metal oxide sorbent supported on a zeolite of substantially silicon oxide is used for the desulfurization of process gas streams, such as from a coal gasifier, at temperatures in the range of about 1200.degree. to about 1600.degree. F. The sorbent is provided by a mixture of copper oxide and manganese oxide and preferably such a mixture with molybdenum oxide. The manganese oxide and the molybdenum are believed to function as promoters for the reaction of hydrogen sulfide with copper oxide. Also, the manganese oxide inhibits the volatilization of the molybdenum oxide at the higher temperatures.

REFERENCES:
patent: 4925631 (1990-05-01), Harwood, Jr. et al.
patent: 5112796 (1992-05-01), Iannicelli
A Novel Supported Sorbent for Hot Gas Desulfurization, A. T. Atimtay et al, Preprints, Fuel Chemistry Division, American Chemical Society, vol. 35, No. 1, p. 104, 1990.
Hot Gas Clean-up: Zinc Ferrite Leads the Way, L. M. Day, Modern Power Systems, vol. 6, Issue 11, p. 71, Nov. 1986.
Copper Based Sorbent for Hot Gas Cleanup, M. Desai et al, Preprints, Fuel Chemistry Division, American Chemical Society, vol. 35, No. 1, p. 87, 1990.
Detailed Studies of Novel Regenerable Sorbents for High-Temperature Coal-Gas Desulfurization, M. Flytzani-Stephanopoulos et al, Seventh Annual Gasification & Gas Stream Cleanup Systems Contractors Mtg., DOE/METC-87/6079, vol. 2, p. 726, 1987.
Structural Property Changes in Metal Oxide Hot Coal Gas Desulfurization Sorbents, G. D. Focht et al, DOE/MC/21166-2163, 1986.
Performance of Zinc Ferrite Sorbent in Simulated Hot Coal Gas from the KRW Process Development Unit, T. Grindley, DOE/METC-85/4002, Feb. 1985.
Development of Zinc Ferrite Desulfurization Sorbents for Large-Scale Testing, T. Grindley et al, AIChE Annual Meeting, Session 114d, Nov. 1987.
Development and Testing of Regenerable Hot Coal-Gas Desulfurization Sorbent, T. Grindley et al, DOE/METC/16545-1125, 1981.
Removal of H.sub.2 S from Hot Gas in the Presence of Cu-containing Sorbents, T. Kyotani et al, Fuel, vol. 68, No. 1, Jan. 1989.
Metal Oxide/Zeolite Combination Absorbs H.sub.2 S, NASA Tech. Briefs, p. 81, Apr. 1989.
An Experimental Study of Oxidation of Zinc Sulphite Pellets, T. Rajeswara Rao et al, Chemical Engineering Science, vol. 37, No. 7, pp. 987-996, 1982.

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