| US 7,524,786 B2 | ||
| Regeneration of synthesis gas catalysts | ||
| Daxiang Wang, Ponca City, Okla. (US); Baili Hu, Miami, Fla. (US); Yaming Jin, Ponca City, Okla. (US); and Harold A. Wright, Ponca City, Okla. (US) | ||
| Assigned to ConocoPhillips Company, Houston, Tex. (US) | ||
| Filed on Apr. 25, 2005, as Appl. No. 11/113,756. | ||
| Application 11/113756 is a continuation of application No. 10/219148, filed on Aug. 15, 2002, granted, now 6,896,868, filed on May 24, 2005. | ||
| Prior Publication US 2005/0209349 A1, Sep. 22, 2005 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B01J 38/12 (2006.01) | ||
| U.S. Cl. 502—38 [502/53] | 29 Claims |
| 1. A process for regenerating a deactivated syngas catalyst by chemical re-dispersion of a catalytic metal, the process comprising
the following steps:
(a) treating at least a portion of the deactivated syngas catalyst comprising the catalytic metal under oxidation conditions
to convert at least a portion of the catalytic metal to its oxidized state; and
(b) exposing at least a portion of the deactivated syngas catalyst to a re-dispersing gas for a time sufficient to re-disperse
at least a portion of the catalytic metal to obtain a reactivated catalyst.
|