US4038173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking process using platinum/alumina catalyst activated and cooled with hcl
Assignee: Phillips Petroleum Co
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Filing: 1976-09-29
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Granted: 1977-07-26
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Expires: 1996-09-29
Abstract
Abstract An improved halogen-activated platinum/alumina catalyst is produced by activating in the presence of a relatively high concentration of HCl treating agent and thereafter slowly cooling in the presence of a relatively low concentration of HCl treating agent.
Inventors
- 👤 John W. Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:36
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/22; B01J37/24; B01J23/00; B01J23/38; B01J23/40; B01J23/42; C; C07; C07C; C07C4/00; C07C4/08; C07C4/10; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/42
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A hydrocarbon conversion process which comprises contacting a hydrocarbon under hydrocracking conditions with an active alumina supported platinum catalyst prepared by contacting said catalyst at a temperature within the range of 600°-1500° F. with a dry activating gas comprising 30 to 100 volume percent anhydrous hydrogen chloride for at least 0.1 hour; and thereafter cooling the thus-activated catalyst for a time of at least 0.5 hour in the presence of a dry carrier gas containing 1 to 20 volume percent anhydrous hydrogen chloride.
Claim 2
Dependent Claim
83 words
A hydrocarbon conversion process which comprises contacting a hydrocarbon under hydrocracking conditions with an active alumina supported platinum catalyst prepared by contacting said catalyst at a temperature within the range of 600°-1500° F. with a dry activating gas comprising 30 to 100 volume percent anhydrous hydrogen chloride for at least 0.1 hour; and thereafter cooling the thus-activated catalyst for a time of at least 0.5 hour in the presence of a dry carrier gas containing 1 to 20 volume percent anhydrous hydrogen chloride.
Claim 3
Dependent Claim
17 words
A process according to claim 1 wherein said feed is a C 5 or higher boiling hydrocarbon.
Claim 4
Dependent Claim
19 words
A process according to claim 1 wherein said feed in n-octane and wherein said n-octane is converted to butane.
Claim 5
Dependent Claim
29 words
A process according to claim 1 wherein said hydrocracking conditions are: pressure, 100-3000 psig; temperature: 300-700° F.; liquid hourly space velocity, 0.5-20 and H 2 /hydrocarbon mole ratio, 2-20.
Claim 6
Dependent Claim
39 words
A method according to claim 4 wherein said alumina is one of γ alumina or η alumina and said hydrogen chloride is present in said carrier gas in an amount within the range of 2 to 6 volume percent.
Claim 7
Dependent Claim
12 words
A method according to claim 4 wherein said alumina is γ alumina.
Claim 8
Dependent Claim
61 words
A method according to claim 1 wherein said HCl is present in an amount within the range of 40 to 75 volume percent during said activation step and said contacting is carried out for a time within the range of 0.5 to 6 hours and said cooling is carried out over a time within the range of 0.5 to 10 hours.
Claim 9
Dependent Claim
19 words
A method according to claim 4 wherein said activation temperature is within the range of 1050° to 1400° F.
Claim 10
Dependent Claim
44 words
A method according to claim 8 wherein said alumina is γ alumina, a concentration of said hydrogen chloride in said activation step is 41 to 62 volume percent, and a concentration of hydrogen chloride during said cooling step is 2 to 6 volume percent.
Claim 11
Dependent Claim
32 words
A method according to claim 9 wherein hydrogen is present as a carrier gas in said activation step and said carrier gas for said cooling is a mixture of hydrogen and nitrogen.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |