US4451578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron oxide catalyst for steam reforming
Assignee: RTX Corp
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Filing: 1982-04-26
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Granted: 1984-05-29
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Expires: 2002-04-26
Abstract
Abstract High activity steam reforming iron oxide catalysts are described. Such catalysts can be unsupported utilizing at least 90% by weight iron oxide and various modifiers (Al 2 O 3 , K 2 O, CaO, SiO 2 ) or unmodified and supported on such things as alumina, CaO impregnated alumina, and lanthanum stabilized alumina. When used in steam reformers such as autothermal and tubular steam reformers, these catalysts demonstrate much improved resistance to carbon plugging.
Inventors
- 👤 Herbert J. Setzer
- 👤 John A. S. Bett
- 👤 Roger R. Lesieur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:44
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/83; B01J23/74; B01J23/745; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; C01B2203/1064; C01B2203/1082; C01B2203/1088; C01B2203/1094; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A high activity steam reforming catalyst specifically adapted for use in autothermal and tubular steam reforming systems which substantially eliminates carbon plugging in such reforming systems and allows autothermal reformers to operate at reduced oxygen to carbon ratios with heavier distillate hydrocarbons such as No. 2 fuel oil comprising iron oxide deposited on lanthanum stabilized alumina substrate material in an amount of about 20% to about 30% by weight.
Claim 2
Dependent Claim
69 words
A high activity steam reforming catalyst specifically adapted for use in autothermal and tubular steam reforming systems which substantially eliminates carbon plugging in such reforming systems and allows autothermal reformers to operate at reduced oxygen to carbon ratios with heavier distillate hydrocarbons such as No. 2 fuel oil comprising iron oxide deposited on lanthanum stabilized alumina substrate material in an amount of about 20% to about 30% by weight.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |