Two stage metal-containing oil hydrodesulfurization process employing an activated alumina supported catalyst in each stage
AssigneeGulf Research & Development Company
InventorsHarold Beuther, Sun W. Chun, Angelo A. Montagna
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Abstract
A two-stage process for hydrodesulfurization of a metal-containing hydrocarbon oil employing a hydrodesulfurization catalyst in each stage having an activated support prepared by drying and calcining a crystalline alumina containing 1.2 to 2.6 mols of water of hydration per mol of alumina.
Claims15
A process for hydrodesulfurizing a metal-containing hydrocarbon feed oil at a temperature between 600.degree. and 1,000.degree.F., and a hydrogen pressure between 50 and 5,000 psi comprising passing said feed oil and hydrogen through first and second hydrodesulfurization zones in series with interzone removal of gaseous by-products, the catalyst in said first and second zones comprising Group VI-B and Group VIII metals supported on alumina said alumina being prepared by drying and calcining a crystalline alumina hydrate having 1.2 to 2.6 mols of water of hydration per mol of alumina, and maintaining the temperature in said second zone higher than the temperature in said first zone.
Dependencies are inferred from the claim text.