US4329220A
Expired / Lapsed
US
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Catalytic reforming process with liquid phase sulfur removal
Assignee: Atlantic Richfield Co
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Filing: 1980-03-14
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Granted: 1982-05-11
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Expires: 2000-03-14
Abstract
Abstract A reforming process is disclosed which comprises contacting a sulfur-containing hydrocarbon material in at least one liquid phase scavenging or sulfur removal zone with at least one manganese-containing composition at conditions to remove at least a portion of said sulfur from said hydrocarbon material to produce a hydrocarbon feedstock having a reduced concentration of sulfur; and contacting said hydrocarbon feedstock with a catalyst comprising a minor catalytically effective amount of at least one platinum-group metal component, optionally, a major amount of a porous solid support, optionally, a minor catalytically effective amount of at least one halogen component, and optionally, at least one rhenium component in the presence of hydrogen at hydrocarbon reforming conditions to obtain a hydrocarbon reformate product.
Inventors
- 👤 Thomas J. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:08
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003; C10G61/00; C10G61/02; C10G61/06; C10G69/00; C10G69/02; C10G69/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
105 words
A reforming process for a hydrocarbon material containing a sulfur component comprising: contacting in a liquid phase sulfur removal zone at liquid phase sulfur removal conditions, said hydrocarbon material with a manganese-containing composition which comprises a manganese component capable of removing at least a portion of said sulfur component at said sulfur removal conditions to produce a reduced sulfur-containing hydrocarbon feedstock, and contacting in a reforming zone in the presence of hydrogen at hydrocarbon reforming conditions said feedstock with a catalyst comprising a catalytically effective amount of a platinum-group metal component capable of reforming said feedstock at such reforming conditions to produce a reformed product.
Claim 2
Dependent Claim
105 words
A reforming process for a hydrocarbon material containing a sulfur component comprising: contacting in a liquid phase sulfur removal zone at liquid phase sulfur removal conditions, said hydrocarbon material with a manganese-containing composition which comprises a manganese component capable of removing at least a portion of said sulfur component at said sulfur removal conditions to produce a reduced sulfur-containing hydrocarbon feedstock, and contacting in a reforming zone in the presence of hydrogen at hydrocarbon reforming conditions said feedstock with a catalyst comprising a catalytically effective amount of a platinum-group metal component capable of reforming said feedstock at such reforming conditions to produce a reformed product.
Claim 3
Dependent Claim
18 words
The process of claim 1 wherein the catalyst also comprises a catalytically effective amount of a halogen component.
Claim 4
Dependent Claim
14 words
The process of claim 1 wherein said manganese component comprises an oxide of manganese.
Claim 5
Dependent Claim
13 words
The process of claim 3 wherein said oxide of manganese comprises manganous oxide.
Claim 6
Dependent Claim
12 words
The process of claim 1 wherein the platinum-group metal component comprises platinum.
Claim 7
Dependent Claim
40 words
The process of claim 1 wherein the percent by weight of said manganese component calculated as manganous oxide and based upon the total weight of said manganese-containing composition is in the range of about 35% to about 99% by weight.
Claim 8
Dependent Claim
38 words
The process of claim 1 wherein said sulfur removal conditions comprise a temperature below the critical temperature of said hydrocarbon material and a pressure sufficient to maintain the presence of a liquid phase in the sulfur removal zone.
Claim 9
Dependent Claim
50 words
The process of claim 7 wherein said sulfur removal conditions comprise a temperature in the range of about 400° to about 600° F. and a pressure from about 100 to about 800 psig wherein said temperature and pressure are selected so as to maintain the presence of a liquid phase.
Claim 10
Dependent Claim
20 words
The process of claim 1 wherein said catalyst in the reforming zone also comprises a catalytically effective amount of rhenium.
Claim 11
Dependent Claim
46 words
The process of claim 2 wherein the platinum-group metal component, calculated on an elemental basis, is about 0.01% to about 3% by weight of the catalyst and the halide component, calculated on an elemental basis, is about 0.1% to about 5% by weight of the catalyst.
Claim 12
Dependent Claim
39 words
The process of claim 1 wherein at least a portion of the manganese-containing composition is in the form of particles each of which have an overall average diameter in the range of about 1/2 inch to about 1/32 inch.
Claim 13
Dependent Claim
43 words
The process of claim 1 wherein the manganese-containing composition comprises at least one component selected to the group consisting of a clay, graphite, alumina, zirconia, chromia, magnesia, curia, boria, silica-alumina, silica-magnesia, chromium-alumina, alumina-boria, alumina-silica-boron phosphate, silica-zirconium, and a combination of alumina and silica.
References Cited (Backward Citations)
US4225417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-10 | 1985-11-09 | 1986-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-10 | 1989-11-09 | 1990-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-10 | 1993-11-09 | 1994-05-11 | $7700.00 | Window Closed / Lapsed |