US3909391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of aluminum chloride/palladium chloride hydrocracking catalyst mixture
Assignee: Atlantic Richfield Co
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Filing: 1974-08-05
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Granted: 1975-09-30
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Expires: 1994-08-05
Abstract
Abstract Method for the recovery of an aluminum chloride-palladium chloride catalyst mixture or complex used to hydrocrack high molecular weight hydrocarbons containing sulfur and nitrogen compounds at elevated temperatures and hydrogen pressures, the catalyst being soluble in such hydrocarbons at the hydrocracking temperatures. The recovered catalyst is in the form of a bottoms fraction concentrate resulting from the hydrocracking process and may be reused without any pre-treatment.
Inventors
- 👤 Robert W Rieve
- 👤 Harold Shalit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:12
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/08; C10G47/10; C10G47/12; C10G47/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
A METHOD FOR THE RECOVERY OF AN ALUMINUM CHLORIDE-PALLADIUM CHLORIDE HYDROCRACKING CATALYST MIXTURE UTILIZED IN HYDROCRACKING HIGH MOLECULAR WEIGHT HYDROCARBONS CONTAINING SULFUR AND NITROGEN COMPOUNDS AT A TEMPERATURES OF FROM 400* TO 1200*F. AT PRESSURE OF FROM 100 PSIG TO 5000 PSIG WITH FROM 100 TO 5000 STANDARD CUBIC FEET OF HYDROGEN PER BARREL OF HYDROCARBON CHARGE, SAID CATALYST BEING SOLUBLE IN SAID HYDROCARBONS AT SAID TEMPERATURES WHICH COMPRISES THE STEPS OF COOLING THE HYDROCARBON REACTION PRODUCTS TO AT LEAST ABOUT 250*F. TO SUBSTANTIALLY INSOLUBILIZE AND PRECIPITATE SAID CATALYST, REMOVING THE HYDROCARBON REACTION PRODUCTS LEAVING A BOTTOMS FRACTION CONTAINING ALUMINUM CHLORIDE-PALLADIUM CHLORIDE CATALYST CONCENTRATE, AND RECOVERING SAID BOTTOMS FRACTION CATALYST CONCENTRATE FOR REUSE, SAID CONCENTRATE BEING SOLUBLE IN SAID HYDROCARBONS AT SAID HYDROCRACKING TEMPERATURES.
Claim 2
Independent Claim
124 words
A METHOD FOR THE RECOVERY OF AN ALUMINUM CHLORIDE-PALLADIUM CHLORIDE HYDROCRACKING CATALYST MIXTURE UTILIZED IN HYDROCRACKING HIGH MOLECULAR WEIGHT HYDROCARBONS CONTAINING SULFUR AND NITROGEN COMPOUNDS AT A TEMPERATURES OF FROM 400* TO 1200*F. AT PRESSURE OF FROM 100 PSIG TO 5000 PSIG WITH FROM 100 TO 5000 STANDARD CUBIC FEET OF HYDROGEN PER BARREL OF HYDROCARBON CHARGE, SAID CATALYST BEING SOLUBLE IN SAID HYDROCARBONS AT SAID TEMPERATURES WHICH COMPRISES THE STEPS OF COOLING THE HYDROCARBON REACTION PRODUCTS TO AT LEAST ABOUT 250*F. TO SUBSTANTIALLY INSOLUBILIZE AND PRECIPITATE SAID CATALYST, REMOVING THE HYDROCARBON REACTION PRODUCTS LEAVING A BOTTOMS FRACTION CONTAINING ALUMINUM CHLORIDE-PALLADIUM CHLORIDE CATALYST CONCENTRATE, AND RECOVERING SAID BOTTOMS FRACTION CATALYST CONCENTRATE FOR REUSE, SAID CONCENTRATE BEING SOLUBLE IN SAID HYDROCARBONS AT SAID HYDROCRACKING TEMPERATURES.
Claim 3
Dependent Claim
30 words
A method according to claim 1 wherein the hydrocarbon reaction products are removed leaving a bottoms fraction of up to 15 volume per cent containing aluminum chloride-palladium chloride catalyst concentrate.
Claim 4
Dependent Claim
26 words
A method according to claim 1 wherein the bottoms fraction containing said catalyst concentrate is recycled to contact and hydrocrack fresh feed high molecular weight hydrocarbons.
Claim 5
Dependent Claim
13 words
A method according to claim 3 wherein said hydrocarbons boil predominantly above 400*F.
Claim 6
Dependent Claim
70 words
A method according to claim 3 wherein in the bottoms fraction containing the aluminum chloride-palladium chloride catalyst concentrate the palladium ranges from 0.001 to 1.0 weight per cent based on the weight of the fresh hydrocarbon and the aluminum chloride ranges from 0.005 to 10.0 weight per cent based on the weight of the fresh hydrocarbon with the mole ratio of aluminum chloride to palladium chloride being at least 2:1.
Claim 7
Dependent Claim
15 words
A method according to claim 3 wherein said high molecular weight hydrocarbons boil above 800*F.
Claim 8
Dependent Claim
38 words
A method according to claim 4 wherein said high molecular weight hydrocarbons are a crude oil containing a minimum of from 0.3 to 1.5 combined weight per cent sulfur and nitrogen based on the weight of said crude.
References Cited (Backward Citations)
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US2964462A
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |