US3856660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming process using Pt-Ir-Ga catalyst
Assignee: Phillips Petroleum Co
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Filing: 1973-08-15
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Granted: 1974-12-24
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Expires: 1993-08-15
Abstract
Abstract Reforming process comprising contacting naphtha and hydrogen with a catalyst comprising a refractory support promoted with platinum, iridium and gallium.
Inventors
- 👤 J Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:50
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/96; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J37/00; B01J37/22; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
49 words
A PROCESS FOR THE CATALYTIC REFORMING OF HYDROCARBONS WHICH COMPRISES CONTACTING AT REFORMING CONDITIONS NAPHTHA AND HYDROGEN WITH A CATALYST HAVING INCREASED ACTIVITY AND SELECTIVITY COMPRISING A REFRACOTRY SUPPORT PROMOTED WITH FROM ABOUT 0.01-5 WEIGHT PERCENT OF PLATINUM, IRIDIUM AND GALLIUM, RESPECTIVELY, AND WITHDRAWING A REFORMATE RICH IN AROMATICS.
Claim 2
Dependent Claim
49 words
A PROCESS FOR THE CATALYTIC REFORMING OF HYDROCARBONS WHICH COMPRISES CONTACTING AT REFORMING CONDITIONS NAPHTHA AND HYDROGEN WITH A CATALYST HAVING INCREASED ACTIVITY AND SELECTIVITY COMPRISING A REFRACOTRY SUPPORT PROMOTED WITH FROM ABOUT 0.01-5 WEIGHT PERCENT OF PLATINUM, IRIDIUM AND GALLIUM, RESPECTIVELY, AND WITHDRAWING A REFORMATE RICH IN AROMATICS.
Claim 3
Dependent Claim
43 words
The process according to claim 1 wherein the reforming temperature ranges from 600*-1,100*F, the reforming pressure ranges from 100-600 psig, the hydrocarbon feed rate ranges from 0.2-10 LHSV, and the hydrogen ratio ranges from 0.5-20 mols of hydrogen per mol of hydrocarbon feed.
Claim 4
Dependent Claim
22 words
The process according to claim 1 wherein the naphtha comprises paraffins having from about 6 to about 12 carbon atoms per molecule.
Claim 5
Dependent Claim
31 words
The process according to claim 1 wherein the support is alumina and the amount of platinum, iridium and gallium present in the catalyst is in the range of 0.05-2 weight percent.
Claim 6
Dependent Claim
19 words
A process according to claim 4 wherein said naphtha comprises n-heptane and the reformate produced comprises benzene and toluene.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |