Rhodium cloth catalyst for partial oxidation of hydrocarbons
AssigneeConocoPhillips Company
InventorsHasan Dindi, William H. Manogue, John J. Barnes
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Abstract
This invention provides a catalyst and a process for the catalytic partial oxidation of a hydrocarbon feedstock by contacting a feed stream including a hydrocarbon feedstock and an oxygen-containing gas with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream including carbon monoxide and hydrogen. The process of this invention is characterized by using a porous catalyst containing rhodium, such as rhodium gauze or rhodium felt.
Claims24
A process for the catalytic partial oxidation of a light hydrocarbon feedstock, comprising:
- contacting a feed stream comprising a light hydrocarbon feedstock and an oxygen-containing gas with a porous bulk metal catalyst at conversion-promoting conditions effective to produce an effluent stream comprising carbon monoxide and hydrogen;
- wherein the catalyst comprises a metal cloth;
- wherein the metal comprises at least 90 wt % rhodium;
- and
- wherein said conversion-promoting conditions include passing said feed stream over said catalyst at a gas hourly space velocity of at least about 60,000 hr−1.
A process for the catalytic partial oxidation of a light hydrocarbon feedstock, comprising:
- contacting a feed stream comprising a light hydrocarbon feedstock and an oxygen-containing gas feed stream with a catalyst at conversion-promoting conditions effective to produce an effluent stream comprising carbon monoxide and hydrogen;
- wherein the catalyst consists of at least 90 wt % rhodium;
- wherein carbon monoxide is produced at a carbon selectivity of at least about 80%;
- and
- wherein hydrogen is produced at a hydrogen selectivity of at least about 60%;
- and
- wherein said conversion-promoting conditions include passing said feed stream over said catalyst at a gas hourly space velocity of at least about 60,000 hr−1.
A process for the catalytic partial oxidation of a light hydrocarbon feedstock, comprising:
- (a) preheating a feed stream comprising a light hydrocarbon feedstock and oxygen gas to at least about 350° C.;
- (b) passing the feed stream over a catalyst consisting of at least 90 wt % rhodium, at a space velocity from about 150,000 to about 10,000,000 hr−1 at conversion-promoting conditions comprising a pressure from about 500 kPa to about 3000 kPa wherein the conditions are effective to produce an effluent stream comprising carbon monoxide and hydrogen;
- wherein the catalyst is selected from the group consisting of rhodium felt and rhodium gauze, the carbon monoxide is produced at a carbon selectivity of at least about 80%, and the hydrogen is produced at a hydrogen selectivity of at least about 60%.
Dependencies are inferred from the claim text.