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Title: Catalytic reforming process using noble metal alkaline zeolites

Patent ·
OSTI ID:5787477

This patent describes improvement in a process wherein a gasoline boiling range hydrocarbonaceous feedstock is catalytically reformed in the presence of hydrogen in a reforming process unit comprised of serially connected reactors wherein each of the reactors contains a supported noble metal-containing catalyst. The improvement comprises the noble-metal catalyst of at least one reactor being selected from the group consisting of alkaline faujasite zeolite, L zeolite and zeolites isostructural thereto, which catalysts are prepared by a: contacting an alkaline faujasite zeolite, L zeolite, or zeolite isostructural thereto, with a noble metal composition selected from Pt(acetylacetonate){sub 2} or Pd(acetylacetonate){sub 2} for an effective amount of time to form a substantially homogeneous mixture and to incorporate the platinum and/or palladium into the near surface regions of the zeolite, but not to disperse the platinum and/or palladium throughout the entire zeolite; and calcining the so treated zeolite at a temperature from about 250 {degrees} C to about 600 {degrees} C for an effective amount of time.

Assignee:
Exxon Research and Engineering Co., Florham Park, NJ (USA)
Patent Number(s):
US 4992158; A
Application Number:
PPN: US 7-292782
OSTI ID:
5787477
Resource Relation:
Patent File Date: 3 Jan 1989
Country of Publication:
United States
Language:
English