Conocophillips Company

Shuibo Xie

Harold A Wright

David M Minahan

Rafael Luis Espinoza

Kandaswamy Jothimurugesan

Beatrice C Ortego

Daxiang Wang

Yaming Jin

Tianyan Niu

Baili Hu

David E Simon

Charles R Rapier

Mary E Wolf

Chad M Ricketson

The present invention relates to stabilized supports stable at temperatures above 800&#xb0; C., and method of preparing such supports, which includes adding a rare earth metal to an aluminum-containing precursor prior to calcining. The present invention can be more specifically seen as a support, process and catalyst wherein the stabilized alumina catalyst support comprises a rare earth aluminate with a molar ratio of aluminum to rare earth metal greater than 5:1 and, optionally, an aluminum oxide. More particularly, the invention relates to the use of catalysts comprising rhodium, ruthenium, iridium, or combinations thereof, loaded onto said stabilized supports for the synthesis gas production via partial oxidation of light hydrocarbons, and further relates to gas-to-liquids conversion processes.

Stabilized alumina supports, catalysts made therefrom, and their use in partial oxidation

The present invention relates to improved catalyst compositions, as well as methods of making and using such compositions to prepare synthesis gas and ultimately Chydrocarbons. In particular, preferred embodiments of the present invention comprise catalyst systems comprising a core and an outer region disposed on said core, wherein a substantial amount of the catalytic metal is located in the outer region of the catalyst support matrix. In addition, the catalyst systems are able to maintain high conversion and selectivity values with very low catalytically active metal loadings. The catalyst systems are appropriate for improved syngas, oxidative dehydrogenation and other partial oxidation reactions, including improved reaction schemes for the conversion of hydrocarbon gas to Chydrocarbons.

Catalysts for the conversion of methane to synthesis gas

The present invention relates to improved catalyst compositions, as well as methods of making and using such compositions. Preferred embodiments of the present invention comprise catalyst compositions having high melting point metallic alloys, and methods of preparing and using the catalysts. In particular, the metallic alloys are preferably rhodium alloys. Accordingly, the present invention also encompasses an improved method for converting a hydrocarbon containing gas and an atomic oxygen-containing gas to a gas mixture comprising hydrogen and carbon monoxide, i.e., syngas, using the catalyst compositions in accordance with the present invention. In addition, the present invention contemplates an improved method for converting hydrocarbon gas to liquid hydrocarbons using the novel syngas catalyst compositions described herein.

Syngas catalysts and their method of use

A porous catalyst support having an increased average pore size is produced from a mixed metal oxide material. In accordance with one embodiment, a method for preparing a mixed metal oxide material includes providing a mixed metal oxide precursor containing at least two metals, calcining the mixed metal oxide precursor at a temperature sufficient to form a thermally and mechanically stable mixed metal oxide material, and leaching the mixed metal oxide material in a leach solution with a constituent that dissolves one metal oxide. Preferably, the calcination temperature is approximately between 300&#xb0; C. and 1300&#xb0; C. The leaching constituent may be chosen from the group including acidic solutions of HCl, HNO, HSO, HPO, and their combinations, or basic solutions of NH, NaOH, KOH, and their combinations.

Modification of the pore structure of metal oxide and mixed metal oxide supports for catalysts synthesis

Growing community of inventors

Ponca City, OK, United States of America

Shuibo Xie