The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2008
Filed:
Apr. 06, 2004
Andrzej M. Malek, Doylestown, PA (US);
Stephen C. Leviness, Tulsa, OK (US);
Horacio M. Trevino, Annandale, NJ (US);
Weldon K. Bell, Ridgeway, IA (US);
David O. Marler, Morris Plains, NJ (US);
Andrzej M. Malek, Doylestown, PA (US);
Stephen C. Leviness, Tulsa, OK (US);
Horacio M. Trevino, Annandale, NJ (US);
Weldon K. Bell, Ridgeway, IA (US);
David O. Marler, Morris Plains, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Dispersed Active Metal catalyst for hydrogenation reactions is produced by treating a substantially catalytically inactive metal particulate with a solution capable of oxidizing the metal particulate and comprising of at least one compound of a hydrogenation catalyst metal thereby forming a layer of at least one of hydroxides and oxides thereon. The metal particulate is activated by treatment with a hydrogen-containing gas at elevated temperatures to form a porous layer of Dispersed Active Metal catalyst. Preferably, the treated metal particulate is dried prior to activation, and also preferably calcined in an oxidant-containing atmosphere prior to activation. The treatment solution may advantageously contain a compound of at least one promoter metal for the added catalyst metal. The porosity of the layer provides enhanced catalyst activity as well as improved methane selectivity in the Fischer-Tropsch process.