US4227993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysts for the hydrotreatment of hydrocarbons and their utilization
Assignee: Compagnie Francaise de Raffinage SA
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Filing: 1979-03-06
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Granted: 1980-10-14
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Expires: 1999-03-06
Abstract
Abstract Catalysts particularly useful for hydroreforming and isomerization of hydrocarbons formed of a refractory mineral oxide carrier having a halogen in combined form and the following metals in free or combined state: (a) A metal from the platinum group (0.02 to 2%); (b) tin (0.02 to 2%); and (c) at least one metal selected from the group of scandium, yttrium, thorium, uranium, and the rare earths metals (0.01 to 5%)--said percentages being based upon the total weight of the catalyst, said catalyst preferably having platinum and chlorine. Also the use of said catalyst in the aforementioned hydrotreatments.
Inventors
- 👤 Philippe Engelhard
- 👤 Georges Szabo
- 👤 Joseph E. Weisang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:08
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/63; B01J23/62; B01J23/622; B01J23/626; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; C10G45/00; C10G45/58; C10G45/60; C10G45/62
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
126 words
A method comprising use of a catalyst in the reforming, in the presence of hydrogen, of hydrocarbon fractions whose sulfur content is under 10 ppm and whose boiling temperature at atmospheric pressure is between 35° and 250° C., said catalyst comprising a refractory mineral oxide carrier, a halogen element present in combined form, and containing metals in a free or combined state on said carrier as follows: a. From 0.02 to 2% of at least one metal from the platinum group; b. From 0.02 to 2% of tin; and c. From 0.01 to 5% of at least one metal selected from the group consisting of scandium, yttrium, thorium, and uranium; said percentages, determined relative to the respective elemental form, being based upon the total catalyst weight.
Claim 2
Independent Claim
126 words
A method comprising use of a catalyst in the reforming, in the presence of hydrogen, of hydrocarbon fractions whose sulfur content is under 10 ppm and whose boiling temperature at atmospheric pressure is between 35° and 250° C., said catalyst comprising a refractory mineral oxide carrier, a halogen element present in combined form, and containing metals in a free or combined state on said carrier as follows: a. From 0.02 to 2% of at least one metal from the platinum group; b. From 0.02 to 2% of tin; and c. From 0.01 to 5% of at least one metal selected from the group consisting of scandium, yttrium, thorium, and uranium; said percentages, determined relative to the respective elemental form, being based upon the total catalyst weight.
Claim 3
Dependent Claim
28 words
A method according to claim 1, wherein said metal percentages comprise: a. From 0.10 to 0.70%; b. From 0.05 to 0.60%; and c. From 0.02 to 1%, respectively.
Claim 4
Dependent Claim
31 words
A method according to claim 1, wherein said carrier has a specific surface greater than 15 m 2 per gram and a specific pore volume greater than 0.1 cc per gram.
Claim 5
Dependent Claim
18 words
A method according to claim 3, wherein the halogen content of said catalyst is between 0.5 and 3%.
Claim 6
Dependent Claim
12 words
A method according to claim 4, wherein the platinum-group metal is platinum.
Claim 7
Dependent Claim
23 words
A method according to claim 5, wherein the carrier is alumina whose specific surface is between 15 and 350 m 2 per gram.
Claim 8
Dependent Claim
21 words
A method according to claim 6, wherein said carrier is substantially acid in character giving it acid sites which favor isomerization.
Claim 9
Dependent Claim
11 words
A method according to claim 6, wherein said halogen is chlorine.
Claim 10
Dependent Claim
21 words
A method according to claim 8, wherein said halogen content, based on the total catalyst weight, is between 0.6 and 1.6%.
Claim 11
Dependent Claim
58 words
A method according to claim 1, wherein said metal percentages comprise: a. From 0.10 to 0.70%; b. From 0.05 to 0.60%; and c. From 0.02 to 1%; respectively; said carrier has a specific surface greater than 15 m 2 per gram and a specific pore volume greater than 0.1 cc per gram; and said platinum-group metal is platinum.
Claim 12
Independent Claim
40 words
A method according to claims 1 or 10, wherein said reforming is in the presence of hydrogen, of hydrocarbon fractions whose sulfur content is under 1 ppm and whose boiling temperature at atmospheric pressure is between 35° and 250° C.
Claim 13
Independent Claim
105 words
A method comprising use of a catalyst in the isomerization of hydrocarbons in the presence of hydrogen, said catalyst comprising a refractory mineral oxide carrier, a halogen element present in combined form, and containing metals in a free or combined state on said carrier as follows: a. From 0.02 to 2% of at least one metal from the platinum group; b. From 0.02 to 2% of tin; and c. From 0.01 to 5% of at least one metal selected from the group consisting of scandium, yttrium, thorium, and uranium; said percentages, determined relative to the respective elemental form, being based upon the total catalyst weight.
Claim 14
Independent Claim
105 words
A method comprising use of a catalyst in the isomerization of hydrocarbons in the presence of hydrogen, said catalyst comprising a refractory mineral oxide carrier, a halogen element present in combined form, and containing metals in a free or combined state on said carrier as follows: a. From 0.02 to 2% of at least one metal from the platinum group; b. From 0.02 to 2% of tin; and c. From 0.01 to 5% of at least one metal selected from the group consisting of scandium, yttrium, thorium, and uranium; said percentages, determined relative to the respective elemental form, being based upon the total catalyst weight.
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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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |