US4233187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and process for steam-reforming of hydrocarbons
Assignee: Sued Chemie Inc
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Filing: 1979-03-26
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Granted: 1980-11-11
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Expires: 1999-03-26
Abstract
Abstract An improved catalyst and an improved process for use of the catalyst in the steam-hydrocarbon reforming reaction is disclosed. The catalyst comprises a group VIII metal on a cylindrical ceramic support consisting essentially of alpha alumina and having a plurality of gas passages extending axially therethrough. These supported catalysts display a higher geometric surface area and a lower pressure drop than do standard rings.
Inventors
- 👤 Kenton Atwood
- 👤 James H. Wright
- 👤 Jay S. Merriam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:35
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/50; B01J35/56; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J23/76; B01J23/83; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; B01J35/30; B01J35/391; B01J35/393; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
160 words
A hydrocarbon reforming catalyst comprising a cylindrical refractory support consisting essentially of alumina in the alpha phase, said support having a surface area of not more than 15 square meters per gram and having two or more gas passages extending axially therethrough from one end to the other and a catalytically active amount of nickel or cobalt oxide deposited there upon in a concentration of from 6 to 30% by weight expressed as the metal, said catalyst having a Relative Activity Coefficient Factor (ACF R ) and a Relative Pressure Factor (PF R ) in excess of that when compared to a standard ring, said (ACF R ) being in excess of 1 and the ratio of said (ACF R ) to said (PF R ) being in excess of 1:1, the height (H) of said support bearing a relationship to the effective internal diameter of each of said gas passages (ID), the ratio of H:ID being less than 4:1.
Claim 2
Dependent Claim
160 words
A hydrocarbon reforming catalyst comprising a cylindrical refractory support consisting essentially of alumina in the alpha phase, said support having a surface area of not more than 15 square meters per gram and having two or more gas passages extending axially therethrough from one end to the other and a catalytically active amount of nickel or cobalt oxide deposited there upon in a concentration of from 6 to 30% by weight expressed as the metal, said catalyst having a Relative Activity Coefficient Factor (ACF R ) and a Relative Pressure Factor (PF R ) in excess of that when compared to a standard ring, said (ACF R ) being in excess of 1 and the ratio of said (ACF R ) to said (PF R ) being in excess of 1:1, the height (H) of said support bearing a relationship to the effective internal diameter of each of said gas passages (ID), the ratio of H:ID being less than 4:1.
Claim 3
Dependent Claim
42 words
A hydrocarbon reforming catalyst, as defined in claim 1, in which said cylindrical refractory support is in the form of a spoked wheel, having a peripheral rim, a centrally located hub, and a plurality of radially extending spokes, defining pie-shaped gas passages.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |