logo

For the Inventor, By the Inventor

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.:

US 7402612 B1

PDFFull Text
Date of Patent:
Jul. 22, 2008

Filed:

Oct. 16, 2003

Stabilized transition alumina catalyst support from boehmite and catalysts made therefrom

Applicants:

Yaming Jin, Ponca City, OK (US);

Rafael L. Espinoza, Ponca City, OK (US);

Nithya Srinivasan, Ponca City, OK (US);

Olga P. Ionkina, Ponca City, OK (US);

Inventors:

Yaming Jin, Ponca City, OK (US);

Rafael L. Espinoza, Ponca City, OK (US);

Nithya Srinivasan, Ponca City, OK (US);

Olga P. Ionkina, Ponca City, OK (US);

Assignee:

ConocoPhillips Company, Houston, TX (US);

Attorney:

Conley Rose P.C.

Primary Examiner:

Stanley S Silverman

Assistant Examiner:

James Fiorito

Int. Cl.
CPC ...
C01F 7/02 (2006.01); B01J 23/02 (2006.01); B01J 23/04 (2006.01); B01J 23/06 (2006.01); B01J 23/08 (2006.01); B01J 23/10 (2006.01); B01J 23/12 (2006.01); B01J 23/14 (2006.01); B01J 23/16 (2006.01); B01J 23/18 (2006.01); B01J 23/20 (2006.01); B01J 23/22 (2006.01); B01J 23/24 (2006.01); B01J 23/26 (2006.01); B01J 23/28 (2006.01); B01J 23/30 (2006.01); B01J 23/31 (2006.01); B01J 23/32 (2006.01); B01J 23/34 (2006.01); B01J 23/36 (2006.01); B01J 23/38 (2006.01); B01J 23/40 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 23/48 (2006.01); B01J 23/50 (2006.01); B01J 23/52 (2006.01); B01J 23/54 (2006.01); B01J 23/56 (2006.01); B01J 23/58 (2006.01); B01J 23/63 (2006.01); B01J 23/66 (2006.01); B01J 23/68 (2006.01); B01J 23/70 (2006.01); B01J 23/72 (2006.01); B01J 23/74 (2006.01); B01J 23/755 (2006.01); B01J 23/76 (2006.01); B01J 23/78 (2006.01); B01J 23/80 (2006.01); B01J 23/825 (2006.01); B01J 23/83 (2006.01); B01J 23/835 (2006.01); B01J 23/84 (2006.01); B01J 23/843 (2006.01); B01J 23/89 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention relates to methods for making a stabilized transition alumina of enhanced hydrothermal stability, which include the introduction of at least one structural stabilizer; a steaming step before or after the introduction step, wherein steaming is effective in transforming a transition alumina at least partially to boehmite and/or pseudoboehmite; and a calcining step to create a stabilized transition alumina. The combination of the structural stabilizer and the steaming step is believed to impart high hydrothermal stability to the alumina crystal lattice. Particularly preferred structural stabilizers include boron, cobalt, and zirconium. The stabilized transition alumina is useful as a catalyst support for high water partial pressure environments, and is particularly useful for making a catalyst having improved hydrothermal stability. The invention more specifically discloses Fischer-Tropsch catalysts and processes for the production of hydrocarbons from synthesis gas.

Find Patent Forward Citations

Loading…