US4263134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming catalyst of separate platinum-containing and iridium-containing particles
Assignee: Mobil Oil AS
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Filing: 1980-01-17
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Granted: 1981-04-21
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Expires: 2000-01-17
Abstract
Abstract Catalyst compositions are provided comprising a refractory support, about 0.1 to about 2 percent by weight of platinum, about 0.1 to about 2 percent by weight of iridium and about 0.1 to about 5 weight percent of halogen where the platinum and iridium are contained on separate particles of said support. The relative weight ratio of the particles containing platinum and those containing iridium is between about 10:1 to about 1:10. The compositions are useful as hydrocarbon conversion catalysts and are especially applicable for use in catalyzing the reforming of naphtha petroleum fractions. There is also disclosed a reforming process conducted in the presence of hydrogen, under reforming conditions, in the presence of the above catalyst.
Inventors
- 👤 Hans J. Schoennagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:33
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/46; B01J23/468; B01J37/00; B01J37/04
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
58 words
A process for reforming a hydrocarbon charge which comprises contacting the same under reforming conditions with a catalyst consisting essentially of a mixture of at least two components, one of said components comprising a minor proportion of platinum on a support and another of said components consisting essentially of a minor proportion of iridium on a separate support.
Claim 2
Dependent Claim
58 words
A process for reforming a hydrocarbon charge which comprises contacting the same under reforming conditions with a catalyst consisting essentially of a mixture of at least two components, one of said components comprising a minor proportion of platinum on a support and another of said components consisting essentially of a minor proportion of iridium on a separate support.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein said hydrocarbon charge is a petroleum naphtha.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein the platinum-containing component also contains an additional component selected from the group consisting of silver, osmium, copper, gold, palladium, rhodium, gallium, rhenium, germanium, tin and compounds thereof.
Claim 5
Dependent Claim
23 words
The process of claim 1 wherein the platinum-containing component also contains rhenium in an amount between about 0.01 and about 2 weight percent.
Claim 6
Dependent Claim
12 words
The process of claim 1 wherein said support is an inorganic oxide.
Claim 7
Dependent Claim
10 words
The process of claim 1 wherein said support is alumina.
Claim 8
Dependent Claim
11 words
The process of claim 1 wherein said support is gamma alumina.
Claim 9
Dependent Claim
25 words
The process of claim 1 wherein platinum is deposited on a support of gamma alumina and iridium is deposited on a support of eta alumina.
Claim 10
Dependent Claim
102 words
A reforming process which comprises contacting a hydrocarbon charge under reforming conditions in the presence of a catalyst containing a refractory support, about 0.1 to about 2 percent by weight of platinum, about 0.1 to about 2 percent by weight of iridium and about 0.1 to about 5 weight percent of halogen, which catalyst is further characterized by being a mixture of particles of at least two components, one of said components comprising a minor proportion of platinum on a support and another of said components the metal content thereof consisting essentially of a minor proportion of iridium on a separate support.
Claim 11
Dependent Claim
102 words
A reforming process which comprises contacting a hydrocarbon charge under reforming conditions in the presence of a catalyst containing a refractory support, about 0.1 to about 2 percent by weight of platinum, about 0.1 to about 2 percent by weight of iridium and about 0.1 to about 5 weight percent of halogen, which catalyst is further characterized by being a mixture of particles of at least two components, one of said components comprising a minor proportion of platinum on a support and another of said components the metal content thereof consisting essentially of a minor proportion of iridium on a separate support.
Claim 12
Dependent Claim
13 words
The process of claim 9 wherein said hydrocarbon charge is a petroleum naphtha.
Claim 13
Dependent Claim
23 words
The process of claim 9 wherein the platinum-containing component also contains rhenium in an amount between about 0.01 and about 2 weight percent.
Claim 14
Dependent Claim
25 words
The process of claim 9 wherein the relative weight ratio of the particles containing platinum and those containing iridium is between about 10:1 and 1:10.
Claim 15
Dependent Claim
13 words
The process of claim 9 wherein said refractory support is an inorganic oxide.
Claim 16
Dependent Claim
11 words
The process of claim 9 wherein said refractory support is alumina.
Claim 17
Dependent Claim
10 words
The process of claim 9 wherein said halogen is chlorine.
Claim 18
Dependent Claim
13 words
The process of claim 9 wherein said hydrocarbon charge is a petroleum naphtha.
Claim 19
Dependent Claim
17 words
The process of claim 16 wherein said petroleum naphtha boils between about 120° F. and 450° F.
Claim 20
Dependent Claim
11 words
The process of claim 9 wherein said support is gamma alumina.
Claim 21
Dependent Claim
25 words
The process of claim 9 wherein platinum is deposited on a support of gamma alumina and iridium is deposited on a support of eta alumina.
Claim 22
Dependent Claim
20 words
The process of claim 9 wherein the size of said particles is between about 0.1 micron and about 3000 microns.
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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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |