Catalytic cracking of hydrocarbons

Details Catalytic cracking of hydrocarbons Catalytic cracking of hydrocarbons

1989-11-03

1990-12-25

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 52CT, 208121, 208149, 423239, 502 67, 502 41, 502 42, C10G 1105

Patent

active

049800523

ABSTRACT:
Emission of noxious nitrogen oxides with the flue gas from the regenerator of a fluid catalytic cracking plant are reduced by incorporating into the circulating inventory of cracking catalyst separate additive particles that contain a copper-loaded zeolite. A particularly effective additive is provided by ion-exchanging ZSM-5 zeolite with cupric ion. With such preferred additive, CO emissions also are reduced, and the recovered gasoline has enhanced octane number.

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