Hydrocarbon conversion process
AssigneeMobil Oil Corporation
InventorsHartley Owen, Paul B. Venuto
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Abstract
An operation is described which involves the catalytic cracking of high boiling hydrocarbons in the presence of hydrogen and carbon-hydrogen contributing fragments in the presence of particularly crystalline zeolite conversion catalysts promoting the chemical reactions of cracking, hydrogen redistribution, olefin cyclization and chemical reactions providing mobile hydrogen in one of several different forms and suitable for completing desired hydrogen transfer reactions. The chemical reactions desired are particularly promoted by a mixture of large and smaller pore crystalline zeolites in the presence of hydrogen contributing materials such as methanol or mixed with one or more reactants which will form methanol under suitable reaction conditions.
Claims14
A method for cracking high boiling hydrocarbons to products including gasoline which comprises passing a hydrocarbon feed material higher boiling than gasoline in admixture with a gasiform material comprising non-hydrocarbon materials contributing non-molecular mobile hydrogen and/or carbon-hydrogen fragments at the reaction conditions employed in contact with a combination of crystalline zeolite cracking materials providing a pore size within the range of 4 to 15 Angstrom units, maintaining reaction conditions including a pressure below 100 psig and a cracking temperature within the range of 400.degree. to 1200.degree. F. to effect reaction between formed mobile hydrogen fragments and/or carbon-hydrogen fragments with products of cracking said high boiling hydrocarbon feed and recovering products of said cracking operation contributing to the formation of and forming gasoline boiling range products.
Dependencies are inferred from the claim text.