Phillips Petroleum Company

Conocophillips Company

Brian H Limoges

Fan-Nan Lin

Richard K Young

William R Anthoney

John S Parsons

Donald H Macahan

Peter C Stynes

A reforming catalyst containing a Group VIII metal, or a Group VII B metal, or tin, or germanium, or copper, or selenium or combinations of any two or more metals or oxides thereof is activated by: a) continuously flowing a reducing gas over the catalyst for contact with the catalyst; (b) during step a), flowing a halogen-containing compound over the catalyst for contact with the catalyst for a first time period, wherein the first time period is greater than about 1 minute, and wherein the first time period is less than about 60 minutes; and (c) following step b), and during step a), substantially discontinuing the flow of the halogen-containing compound over the catalyst for a second time period, wherein the second time period is greater than about 1 minute. Alternatively, the catalyst can be activated in an activation zone by: 1) removing water from the activation zone; 2) reducing iron oxide contained in the activation zone in the presence of a reducing gas thereby forming reduced iron and water; 3) removing water from the activation zone; 4) reducing the metal oxide of the catalyst in the presence of a reducing gas thereby forming reduced metal and water; 5) removing water from the activation zone; 6) during step 4), flowing a halogen-containing compound over the catalyst for contact with the catalyst for a first time period; and 7) following step 6) and during step 4), substantially discontinuing the flow of halogen-containing compound over the catalyst for a second time period.

Catalytic reforming catalyst activation

In a process for the dehydrocyclization of a dehydrocyclizable hydrocarbon contained in a dehydrocyclization feed stream which comprises contacting said dehydrocyclizable hydrocarbon in a dehydrocyclization zone under dehydrocyclization conditions in the presence of a dehydrocyclization catalyst, the improvement comprises carrying out said dehydrocyclization process in the presence of a metal chloride additive in said dehydrocyclization feed stream, said metal chloride additive being present in an amount sufficient to inhibit deactivation of such dehydrocyclization catalyst.

Hydrocarbon dehydrocyclization process

An apparatus and method are provided wherein liquid is removed from a liquid-solids mixture by employing both filtration and low pressures to achieve vaporization of liquid. The mixture is introduced to a vessel in which the mixture is filtered so that a substantial portion of the liquid is withdrawn from the vessel. The vessel is then depressurized to an extent necessary to vaporize a substantial portion of the remaining liquid. Such vapor is withdrawn from the vessel. During vaporization, the contents of the vessel are agitated and heated.

Removal of liquid from a liquid-solids mixture

Method for removing liquid from a liquid-solids mixture

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Borger, TX, United States of America

Brian H Limoges