Reforming process using chromium trioxide-graphite intercalation catalyst
AssigneePhillips Petroleum Company
InventorJesse R. Harris
Life of this patent
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Abstract
Nonaromatic hydrocarbons are converted to aromatic hydrocarbons by contacting with a molecular chromium trioxide-graphite intercalation catalytic compound under dehydrocyclization conditions of temperature and pressure. In one embodiment, normal hexane is converted to benzene in the presence of a graphite-chromium trioxide interlayered complex with good conversion and high selectivity.
Claims9
A process for reforming nonaromatic hydrocarbons to produce a product having an increased aromatic content which comprises contacting a nonaromatic hydrocarbon-containing feed under reforming conditions of temperature and pressure in the presence of a catalyst consisting of a molecular chromium trioxide-graphite intercalation complex to convert the nonaromatic hydrocarbons present in the feed to aromatics, and withdrawing a reformate rich in aromatics, said catalyst having been prepared by heating a mixture of chromium trioxide and graphite at an elevated temperature and for a period of time sufficient to form said complex having a weight ratio of chromium trioxide to graphite of about 0.01:1 to about 2.5:1.
A process for reforming nonaromatic hydrocarbons to produce a product having an increased aromatic content which comprises contacting normal hexane under dehydrocyclization conditions of temperature and pressure in the presence of a catalyst consisting of a molecular chromium trioxide-graphite intercalation complex to convert the normal hexane to benzene, and withdrawing a reformate rich in benzene, said catalyst having been prepared by heating a mixture of chromium trioxide and graphite at an elevated temperature and for a period of time sufficient to form said complex having a weight ratio of chromium trioxide to graphite of about 0.01:1 to about 2.5:1.
Dependencies are inferred from the claim text.