W. R. Grace Co.-conn.

Katalistiks International, Inc.

Uop Lcc

Gerald M Woltermann

William E Cormier, Jr

Lawrence L Upson

John S Magee

Robert Bartek

Fred J Baars

Alakanada Bhattacharyya

An FCC catalyst system and a process using the catalyst system are disclosed. The catalyst system comprises a metal trap component, such as bastnaesite or barium titanate, and a sulfur oxide acceptor such as a magnesium spinel in addition to a zeolite. The metal trap and sulfur oxide components are preferably in separate particles. The catalyst formulation results in improved activity believed to result from the sulfur oxide acceptor protecting the metal trap component from the harmful effects of sulfur oxides such as the formation of stable metal oxides.

Increasing metal-tolerance of FCC catalyst by sulfur oxide removal

In a catalytic cracking process which includes contacting a hydrocarbon feedstock in a contacting zone in the presence of solid composition containing molecular sieve-containing catalyst capable of promoting hydrocarbon cracking at conditions effective to crack the hydrocarbon feedstock to lower boiling components, the improvement comprising conducting the contacting in the presence of at least one metal component, other than the catalyst, containing calcium and tin. A composition of matter comprising such catalyst and metal component is also disclosed.

Hydrocarbons cracking process and catalyst for use in same

Hydrocarbon cracking process and catalyst for use in same

A process for the production of an alkaline earth metal, aluminum-containing spinel composition comprises: (a) combining (1) an acidic, aluminum-containing composition in which the aluminum is present in a positively charged species, and (2) a basic, alkaline earth metal-containing composition to form a mixture; and (b) calcining the mixture to form the alkaline earth metal, aluminum-containing spinel composition. Alkaline earth metal, aluminum-containing spinels having both high surface areas and high attrition resistance, and processes for using spinel compositions, e.g., as sulfur oxide and nitrogen oxide removal agent, are also disclosed.

Alkaline earth metal spinels and processes for making

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Westminster, MD, United States of America

Gerald M Woltermann