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Title: Catalytic cracking using a cracking catalyst in admixture with particles of platinum group metal or rhenium on a substrate regenerated to up to about 0. 1% coke

Abstract

An improved fluid catalytic cracking process comprises a method for the regeneration of the fluidizable hydrocarbon conversion catalyst, particularly of the molecular sieve type, which has been deactivated with coke deposits while employed in a hydrocarbon catalytic cracking process, in which the coke-containing hydrocarbon conversion catalyst is contacted with an oxygen containing gas to burn the coke from the catalyst under conditions providing substantially complete combustion of carbon monoxide and substantially complete combustion of the coke on the catalyst. In the regenerator, particles of the hydrocarbon conversion catalyst are in association with particles of a platinum group metal or rhenium oxidation catalyst which promotes the combustion of carbon monoxide to carbon dioxide. The catalyst composite contains a mixture of cracking catalyst particles and particles having the platinum group metal or rhenium oxidation catalyst supported on a substrate. Evolved heat is recovered by direct heat transfer to the catalyst, for example within a dilute or dense phase zone in the regenerator vessel. The gaseous effluent from the regenerator has a low content of carbon monoxide and may be discharged directly to the atmosphere with little discernible effect upon ambient air quality. The regenerated hydrocarbon conversion catalyst may have less than aboutmore » 0.05 weight percent coke thereon.« less

Inventors:
;
Publication Date:
OSTI Identifier:
6803201
Patent Number(s):
US 4435282
Assignee:
Standard Oil Co.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 19 Apr 1982; Other Information: PAT-APPL-369500
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; CATALYSTS; REGENERATION; CATALYTIC CRACKING; HEAT RECOVERY; PLATINUM METALS; CATALYTIC EFFECTS; RHENIUM; CARBON MONOXIDE; COKE; DEACTIVATION; DECARBONIZATION; FLUIDIZED BED; FOULING; MOLECULAR SIEVES; OXIDATION; OXIDIZERS; PETROLEUM PRODUCTS; REGENERATORS; REMOVAL; ADSORBENTS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; CRACKING; DECOMPOSITION; ELEMENTS; ENERGY RECOVERY; METALS; OXIDES; OXYGEN COMPOUNDS; PYROLYSIS; RECOVERY; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENTS; 020400* - Petroleum- Processing

Citation Formats

Bertolacini, R J, and Forsythe, Jr, W L. Catalytic cracking using a cracking catalyst in admixture with particles of platinum group metal or rhenium on a substrate regenerated to up to about 0. 1% coke. United States: N. p., 1984. Web.
Bertolacini, R J, & Forsythe, Jr, W L. Catalytic cracking using a cracking catalyst in admixture with particles of platinum group metal or rhenium on a substrate regenerated to up to about 0. 1% coke. United States.
Bertolacini, R J, and Forsythe, Jr, W L. Tue . "Catalytic cracking using a cracking catalyst in admixture with particles of platinum group metal or rhenium on a substrate regenerated to up to about 0. 1% coke". United States.
@article{osti_6803201,
title = {Catalytic cracking using a cracking catalyst in admixture with particles of platinum group metal or rhenium on a substrate regenerated to up to about 0. 1% coke},
author = {Bertolacini, R J and Forsythe, Jr, W L},
abstractNote = {An improved fluid catalytic cracking process comprises a method for the regeneration of the fluidizable hydrocarbon conversion catalyst, particularly of the molecular sieve type, which has been deactivated with coke deposits while employed in a hydrocarbon catalytic cracking process, in which the coke-containing hydrocarbon conversion catalyst is contacted with an oxygen containing gas to burn the coke from the catalyst under conditions providing substantially complete combustion of carbon monoxide and substantially complete combustion of the coke on the catalyst. In the regenerator, particles of the hydrocarbon conversion catalyst are in association with particles of a platinum group metal or rhenium oxidation catalyst which promotes the combustion of carbon monoxide to carbon dioxide. The catalyst composite contains a mixture of cracking catalyst particles and particles having the platinum group metal or rhenium oxidation catalyst supported on a substrate. Evolved heat is recovered by direct heat transfer to the catalyst, for example within a dilute or dense phase zone in the regenerator vessel. The gaseous effluent from the regenerator has a low content of carbon monoxide and may be discharged directly to the atmosphere with little discernible effect upon ambient air quality. The regenerated hydrocarbon conversion catalyst may have less than about 0.05 weight percent coke thereon.},
doi = {},
url = {https://www.osti.gov/biblio/6803201}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {3}
}