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US3772183A
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Reforming petroleum hydrocarbons with gallium-promoted catalysts
Assignee: Standard Oil Co
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Filing: 1971-12-17
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Granted: 1973-11-13
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Expires: 1991-12-17
Abstract
Abstract There is provided a process for reforming a petroleum hydrocarbon stream, which process comprises contacting said hydrocarbon stream in a first reforming zone under reforming conditions and in the presence of hydrogen with a first reforming catalyst to produce a first reformate and subsequently contacting said first reformate in a second reforming zone under reforming conditions and in the presence of hydrogen with a second catalyst comprising a hydrogenation component and a small amount of gallium on a solid catalytic support comprising a porous refractory inorganic oxide. The first reforming catalyst may be any suitable reforming catalyst in the art.
Inventors
- 👤 R Bertolacini
- 👤 D Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:46
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/02; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
34 words
The process of claim 1 wherein said hydrogenation component of said first reforming catalyst is a Group VIII noble metal and is present in an amount of about 0.1 wt.% to about 2 wt.%.
Claim 2
Dependent Claim
21 words
The process of claim 1 wherein said porous refractory inorganic oxide of said second reforming catalyst is a catalytically active alumina.
Claim 3
Dependent Claim
63 words
The process of claim 1 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 4
Dependent Claim
40 words
The process of claim 1 wherein said petroleum hydrocarbon stream comprises a member selected from the group consisting of a virgin naphtha, a cracked naphtha, a partially-reformed naphtha, a hydrocarbon fraction boiling in the gasoline boiling range, and mixtures thereof.
Claim 5
Dependent Claim
49 words
The process of claim 1 wherein said hydrogenation component of said second reforming catalyst comprises a Group VIII noble metal and is present in an amount of about 0.05 wt.% to about 2 wt.%, calculated as the element and based upon the total weight of said second reforming catalyst.
Claim 6
Dependent Claim
39 words
The process of claim 1 wherein said second reforming catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said second reforming catalyst.
Claim 7
Dependent Claim
63 words
The process of claim 2 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 8
Dependent Claim
21 words
The process of claim 2 wherein said porous refractory inorganic oxide of said second reforming catalyst is a catalytically active alumina.
Claim 9
Dependent Claim
40 words
The process of claim 2 wherein said petroleum hydrocarbon stream comprises a member selected from the group consisting of a virgin naphtha, a cracked naphtha, a partially-reformed naphtha, a hydrocarbon fraction boiling in the gasoline boiling range, and mixtures thereof.
Claim 10
Dependent Claim
49 words
The process of claim 3 wherein said hydrogenation component of said second reforming catalyst comprises a Group VIII noble metal and is present in an amount of about 0.05 wt.% to about 2 wt.%, calculated as the elemenT and based upon the total weight of said second reforming catalyst.
Claim 11
Dependent Claim
39 words
The process of claim 3 wherein said second reforming catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said second reforming catalyst.
Claim 12
Dependent Claim
63 words
The process of claim 5 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 13
Dependent Claim
40 words
The process of claim 8 wherein said petroleum hydrocarbon stream comprises a member selected from the group consisting of a virgin naphtha, a cracked naphtha, a partially-reformed naphtha, a hydrocarbon fraction boiling in the gasoline boiling range, and mixtures thereof.
Claim 14
Dependent Claim
49 words
The process of claim 9 wherein said hydrogenation component of said second reforming catalyst comprises a Group VIII noble metal and is present in an amount of about 0.05 wt.% to about 2 wt.%, calculated as the element and based upon the total weight of said second reforming catalyst.
Claim 15
Dependent Claim
53 words
The process of claim 11 wherein said Group VIII noble metal of said second reforming catalyst is platinum and wherein said second reforming catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said second reforming catalyst.
Claim 16
Dependent Claim
53 words
The process of claim 15 wherein said Group VIII noble metal of said second reforming catalyst is platinum and wherein said second reforming catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said second reforming catalyst.
Claim 17
Dependent Claim
10 words
The process of claim 16 wherein said halide is chloride.
Claim 18
Dependent Claim
15 words
The process of claim 17 wherein said halide of said second reforming catalyst is chloride.
Claim 19
Dependent Claim
63 words
The process of claim 18 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 20
Dependent Claim
40 words
The process of claim 20 wherein said petroleum hydrocarbon stream comprises a member selected from the group consisting of a virgin naphtha, a cracked naphtha, a partially-reformed naphtha, a hydrocarbon fraction boiling in the gasoline boiling range, and mixtures thereof.
Claim 21
Dependent Claim
63 words
The process of claim 19 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 22
Dependent Claim
40 words
The process of claim 22 wherein said petroleum hydrocarbon stream comprises a member selected from the group consisting of a virgin naphtha, a cracked naphtha, a partially-reformed naphtha, a hydrocarbon fraction boiling in the gasoline boiling range, and mixtures thereof.
Claim 23
Dependent Claim
120 words
A process for reforming a partially-reformed hydrocarbon stream, which process comprises contacting said hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with a catalyst comprising a hydrogenation component and a small amount of gallium on a solid catalytic support comprising a porous refractory inorganic oxide, said hydrogenation component of said catalyst being a member selected from the group consisting of a Group VI metal of the Periodic Table of Elements, oxides of a Group VI metal, and a Group VIII noble metal, and said small amount of gallium being within the range of about 0.05 wt.% to about 3 wt.%, calculated as the element and based upon the total weight of said catalyst.
Claim 24
Dependent Claim
16 words
The process of claim 24 wherein said porous refractory inorganic oxide comprises a catalytically active alumina.
Claim 25
Dependent Claim
63 words
The process of claim 24 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 26
Dependent Claim
45 words
The process of claim 24 wherein said hydrogenation component of said catalyst comprises a Group VIII noble metal and is present in an amount of about 0.05 wt.% to about 2 wt.%, calculated as the element and based upon the total weight of said catalyst.
Claim 27
Dependent Claim
35 words
The process of claim 24 wherein said catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said catalyst.
Claim 28
Dependent Claim
45 words
The process of claim 25 wherein said hydrogenation component of said catalyst comprises a Group VIII noble metal and is present in an amount of about 0.05 wt.% to about 2 wt.%, calculated as the element and based upon the total weight of said catalyst.
Claim 29
Dependent Claim
35 words
The process of claim 25 wherein said catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said catalyst.
Claim 30
Dependent Claim
63 words
The process of claim 30 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 31
Dependent Claim
35 words
The process of claim 29 wherein said catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said catalyst.
Claim 32
Dependent Claim
16 words
The process of claim 29 wherein said Group VIII noble metal of said catalyst is platinum.
Claim 33
Dependent Claim
63 words
The process of claim 32 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 34
Dependent Claim
35 words
The process of claim 33 wherein said catalyst also contains a halide, said halide being present in an amount of about 0.1 wt.% to about 2 wt.%, based upon the total weight of said catalyst.
Claim 35
Dependent Claim
13 words
The process of claim 35 wherein said halide of said catalyst is chloride.
Claim 36
Dependent Claim
63 words
The process of claim 35 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
Claim 37
Dependent Claim
63 words
The process of claim 36 wherein said reforming conditions comprise an average catalyst temperature of about 700*F. to about 1,050*F., a pressure of about 50 psig to about 1,000 psig, a WHSV of about 0.5 to about 15 weight units of hydrocarbon per hour per weight unit of catalyst, and a hydrogen addition rate of about 1, 500 SCFB to about 15,000 SCFB.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |