Ceria-alumina oxidation catalyst

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide

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B01J 2104, B01J 2342, B01J 2363

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active

054629071

ABSTRACT:
Oxidation catalyst compositions include a catalytic material containing ceria and alumina each having a surface area of at least about 10 m.sup.2 /g, for example, ceria and activated alumina in a weight ratio of from about 1.5:1 to 1:1.5. Optionally, platinum may be included in the catalytic material in amounts which are sufficient to promote gas phase oxidation of CO and HC but which are limited to preclude excessive oxidation of SO.sub.2 to SO.sub.3. Alternatively, palladium in any desired amount may be included in the catalytic material. The catalyst compositions have utility as oxidation catalysts for pollution abatement of exhausts contianing unburned fuel or oil. For example, the catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of the volatile organic fraction component of particulates in the exhaust.

REFERENCES:
patent: 3161605 (1964-12-01), Beck et al.
patent: 3993572 (1976-11-01), Hindin et al.
patent: 4123391 (1978-10-01), Noguchi et al.
patent: 4171289 (1979-10-01), Wheelock
patent: 4189404 (1980-02-01), Keith et al.
patent: 4200552 (1980-04-01), Noguchi et al.
patent: 4477417 (1984-10-01), Domesle et al.
patent: 4492769 (1985-01-01), Blanchard et al.
patent: 4581343 (1986-04-01), Blanchard et al.
patent: 4613583 (1986-09-01), Koch et al.
patent: 4621071 (1986-11-01), Blanchard et al.
patent: 4707341 (1987-11-01), Koch et al.
patent: 4714694 (1987-12-01), Wan et al.
patent: 4749671 (1988-06-01), Saito et al.
patent: 4757045 (1988-07-01), Turner et al.
patent: 4759918 (1988-07-01), Homeier et al.
patent: 4782038 (1988-11-01), Gandhi et al.
patent: 4857088 (1989-08-01), Mizrah et al.
patent: 4929581 (1990-05-01), Steinwandel et al.
patent: 5000929 (1991-03-01), Horiuchi et al.
patent: 5059575 (1991-10-01), Jorgensen et al.
patent: 5081095 (1992-01-01), Bedford et al.
patent: 5145825 (1992-09-01), Deeba et al.
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee, Wisc., 1990, pp. 47 and 48.
1986-1987 Alfa Catalog, Morton Thiokol, Inc., Danvers, MA, 1986, p. 18.
G. Cornetti et al, SAE Paoer #880715, U.S. Transient Cycle Versus ECE R.49 13-Mode Cycle, 1988.
Horiuchi et al, "The Effects of Flow-Through Type Oxidation Catalysts . . . ", SAE Paper 900600, Feb., 1990.

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