US3670044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation process
Assignee: Phillips Petroleum Co
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Filing: 1969-07-18
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Granted: 1972-06-13
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Expires: 1989-07-18
Abstract
Abstract Cycloalkanes, arylalkanes, and alkanes, such as n-butane, when diluted with steam are dehydrogenated in the presence of gaseous hydrogen or mixtures of gaseous hydrogen and gaseous oxygen to less saturated compounds with a catalyst composition comprising a Group VIII metal or a mixture of a Group VIII metal and a Group IVa metal deposited on a support, such as a Group II aluminate spinel.
Inventors
- 👤 Lewis E Drehman
- 👤 Darrell W Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:40
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/60; B01J23/62; B01J23/622; C; C07; C07C; C07C5/00; C07C5/42; C07C5/48
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
23 words
The process of claim 1 wherein: said metal comprises platinum and is in the range from about 0.01-10 weight percent of said support.
Claim 2
Dependent Claim
34 words
The process of claim 2 wherein: a. said Group II aluminate spinel comprises zinc aluminate spinel; and b. said platinum is in the range of about 0.1-1 weight percent of said zinc aluminate spinel.
Claim 3
Dependent Claim
22 words
The process of claim 3 wherein: said platinum exists in the range of about 0.1-0.5 weight percent of said zinc aluminate spinel.
Claim 4
Dependent Claim
23 words
The process of claim 1 wherein said catalyst composition further comprises a metal selected from the group consisting of tin, lead and germanium.
Claim 5
Dependent Claim
27 words
The process of claim 2 wherein said catalyst composition further comprises tin and said tin is in the range from about 0.01-10 weight percent of said support.
Claim 6
Dependent Claim
29 words
The process of claim 3 wherein said catalyst composition further comprises tin and said tin is in the range of about 0.1-1 weight percent of said zinc aluminate spinel.
Claim 7
Dependent Claim
29 words
The process of claim 4 wherein said catalyst composition further comprises tin and said tin exists in the range of about 0.1-0.5 weight percent of said zinc aluminate spinel.
Claim 8
Dependent Claim
38 words
The process of claim 1 wherein: a. said pressure of the dehydrogenation conditions is in the range from about 0-200 psig; and b. wherein said temperature of the dehydrogenation conditions is in the range from about 950*-1,150* F.
Claim 9
Dependent Claim
28 words
The process of claim 9 wherein: a. said pressure is in the range of 0-100 psig; and b. wherein said temperature is in the range of 1,000*-1,100* F.
Claim 10
Dependent Claim
47 words
The process of claim 1 wherein: a. said amount of gaseous hydrogen is in the range of about 7-50 moles per 100 moles of inlet hydrocarbon; and b. said amount of gaseous oxygen is in the range of about 2-15 moles per 100 moles of inlet hydrocarbon.
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |