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:
Jun. 02, 2009
Filed:
Oct. 12, 2004
Rafael L. Espinoza, Ponca City, OK (US);
Kandaswamy Jothimurugesan, Ponca City, OK (US);
Kevin L. Coy, Ponca City, OK (US);
James Dale Ortego, Jr., Ponca City, OK (US);
Nithya Srinivasan, Ponca City, OK (US);
Olga P. Ionkina, Ponca City, OK (US);
Rafael L. Espinoza, Ponca City, OK (US);
Kandaswamy Jothimurugesan, Ponca City, OK (US);
Kevin L. Coy, Ponca City, OK (US);
James Dale Ortego, Jr., Ponca City, OK (US);
Nithya Srinivasan, Ponca City, OK (US);
Olga P. Ionkina, Ponca City, OK (US);
ConocoPhillips Company, Houston, TX (US);
Abstract
This invention relates to catalysts comprising a catalytic metal deposited on a composite support with well-dispersed chemical 'anchor' species acting as nucleation centers for catalytic metal crystallites growth. The catalysts have the advantage that the average catalytic metal crystallite size can be controlled by the molar ratio of catalytic metal to chemical 'anchor,' and is not limited by the porous structure of the support. A preferred embodiment comprises a cobalt-based catalyst on a silica-alumina support made by a co-gel method, wherein its average pore size can be controlled by the pH. The alumina species in the support most likely serve as chemical “anchors” to control the dispersion of cobalt species, such that the average cobalt crystallite size can be greater than the average pore size.