Conversion of carbon monoxide

Details Conversion of carbon monoxide Conversion of carbon monoxide

1978-07-25

1980-01-01

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208121, 252417, C10G 1114, B01J 824, B01J 2394

Patent

active

041816005

ABSTRACT:
A metal combustion promoter is introduced to the circulating inventory of catalyst in a catalytic cracking unit as a mixture of particles rich in metal with particles free of metal such that the net concentration of metal in the mixture is about 1 to 10 ppm. According to a preferred embodiment the particles rich in metal contain about 50 ppm pf platinum, iridium, osmium, palladium, rhodium, ruthenium or rhenium. When such mixtures are supplied to the circulating inventory, it is found that specific activity of the metal is enhanced in the sense that activity of the mixture for oxidation of carbon monoxide is higher than that of catalyst in which an equal amount of metal is evenly distributed among all the particles.

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patent: 3364136 (1968-01-01), Chen et al.
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patent: 4072600 (1978-02-01), Schwartz
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patent: 4115250 (1978-09-01), Flanders et al.
patent: 4115251 (1978-09-01), Flanders et al.
patent: 4118430 (1978-10-01), Mooi
patent: 4148751 (1979-04-01), Hemler et al.

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