Thermal cracking of hydrodesulfurized residual petroleum oils
AssigneeGulf Research & Development Company
InventorsJoel Drexler McKinney, Raynor T. Sebulsky, Francis Edmund Wynne, Jr.
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Abstract
A process for the production of ethylene by the non-catalytic riser cracking of hydrodesulfurized residual petroleum oils in the presence of entrained hot, inert solids.
Claims22
A process comprising passing a petroleum residual oil through a catalytic hydrodesulfurization zone in the presence of hydrogen at a temperature between 650.degree. and 900.degree. F. hydrogen being chemically combined with said oil during said hydrodesulfurization step, and then passing hydrodesulfurized residual oil through a thermal cracking zone together with entrained insert hot solids as the heat source and a diluent gas at a temperature between about 1,300.degree. and 2,500.degree. F. for a residence time between about 0.05 to 2 seconds to produce a cracked product containing ethylene and molecular hydrogen.
Dependencies are inferred from the claim text.