US3997429A
Expired / Lapsed
US
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Reforming catalyst
Assignee: Citgo Petroleum Corp
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Filing: 1971-03-26
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Granted: 1976-12-14
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Expires: 1991-03-26
Abstract
Abstract A reforming catalyst comprising minor amounts of platinum and cadmium and chloride on an alumina support. Preferably the cadmium is in the amount of about 0.2% wt. and the platinum is in the amount of about 0.4% wt. and the chloride is in the amount of about 0.1% wt. to 2.0% wt. of the catalyst.
Inventors
- 👤 Jay A. Rashkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:30
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/60; B01J23/62; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A catalyst composition for catalytically reforming hydrocarbon feedstock, said composition comprising an alumina support impregnated with minor amounts of platinum, cadmium, and chloride wherein said alumina support is selected from the group consisting of eta alumina, gamma alumina and mixtures thereof, said platinum and cadmium are each in the amount of from about 0.1% wt. to about 3% wt. and the chloride is in the amount of from 0.1% wt. to about 2% wt.
Claim 2
Dependent Claim
74 words
A catalyst composition for catalytically reforming hydrocarbon feedstock, said composition comprising an alumina support impregnated with minor amounts of platinum, cadmium, and chloride wherein said alumina support is selected from the group consisting of eta alumina, gamma alumina and mixtures thereof, said platinum and cadmium are each in the amount of from about 0.1% wt. to about 3% wt. and the chloride is in the amount of from 0.1% wt. to about 2% wt.
Claim 3
Dependent Claim
12 words
The catalyst composition of claim 1 wherein said support is gamma alumina.
Claim 4
Dependent Claim
34 words
The catalyst composition of claim 2 wherein the platinum is in the amount of from 0.1% wt. to 1.0% wt, and the cadmium is in the amount of from 0.1% wt. to 2.0% wt.
Claim 5
Dependent Claim
38 words
The catalyst composition of claim 3 wherein the platinum is in the amount of about 0.4% wt., the cadmium is in the amount of about 0.2% wt. and the chloride is in the amount of about 0.6% wt.
Claim 6
Dependent Claim
92 words
A process for catalytically reforming hydrocarbon feedstock to dehydrogenate, dehydroisomerize and dehydrocyclize said feedstock, said process comprising reacting said feedstock in a reforming zone at suitable pressure and temperature with hydrogen in the presence of a catalyst composition comprising an alumina support and minor amounts of platinum, cadmium and chloride wherein said alumina support is gamma alumina and wherein the platinum and cadmium are each in the amount of from about 0.1% wt. to about 3% wt. and the chloride is in the amount of from 0.1% wt. to about 2% wt.
Claim 7
Dependent Claim
92 words
A process for catalytically reforming hydrocarbon feedstock to dehydrogenate, dehydroisomerize and dehydrocyclize said feedstock, said process comprising reacting said feedstock in a reforming zone at suitable pressure and temperature with hydrogen in the presence of a catalyst composition comprising an alumina support and minor amounts of platinum, cadmium and chloride wherein said alumina support is gamma alumina and wherein the platinum and cadmium are each in the amount of from about 0.1% wt. to about 3% wt. and the chloride is in the amount of from 0.1% wt. to about 2% wt.
Claim 8
Dependent Claim
37 words
The process of claim 5 wherein the platinum is in the amount of about 0.4% wt., the cadmium is in the amount of about 0.2% wt. and the chloride is in the amount of about 0.6% wt.
Claim 9
Dependent Claim
77 words
A process for catalytically reforming a naphtha feedstock, said process comprising reacting said feedstock in a reforming zone under reforming conditions with hydrogen in contact with a catalyst composition comprising an alumina support and minor amounts of platinum, cadmium and chloride wherein the platinum and cadmium are each present in the amount of from about 0.1% wt. to about 3% wt. and the chloride is present in the amount of from 0.1% wt. to about 2% wt.
Claim 10
Dependent Claim
77 words
A process for catalytically reforming a naphtha feedstock, said process comprising reacting said feedstock in a reforming zone under reforming conditions with hydrogen in contact with a catalyst composition comprising an alumina support and minor amounts of platinum, cadmium and chloride wherein the platinum and cadmium are each present in the amount of from about 0.1% wt. to about 3% wt. and the chloride is present in the amount of from 0.1% wt. to about 2% wt.
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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) | 1979-12-14 | 1980-06-14 | 1980-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-14 | 1984-06-14 | 1984-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-14 | 1988-06-14 | 1988-12-14 | $7700.00 | Window Closed / Lapsed |