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:
Jul. 24, 2007
Filed:
Sep. 03, 2004
Moon Chan Kim, Cheongju-si, Chungcheongbuk-do 360-182, KR;
IN Hyuk Son, Uijeongbu-si, Gyeonggi-do, KR;
Moon Chan Kim, Cheongju-si, Chungcheongbuk-do 360-182, KR;
In Hyuk Son, Uijeongbu-si, Gyeonggi-do, KR;
Other;
Abstract
Disclosed is a process for preparing a stable PROX reaction catalyst, comprising the steps of (a) preparing a catalyst platinum supported on alumina; (b) calcinating the catalyst from step (a) at 300˜600° C. for 2˜4 hours; (c) contacting the catalyst obtained from step (b) with hydrogen at 300° C.˜600° C. for 2˜4 hours to reduce the catalyst; and (d) dropping the temperature in the reduced catalyst from step (c) to less than 100° C. and then contacting the catalyst with a predetermined solvent and/or gas while elevating the temperature to 300° C.–600° C. The catalyst has Pt—Al arrangement, the content of Pt being 0.5˜7% by weight and has an overall shape of an oval.