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US3878089A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydrocarbon conversion with a multimetallic catalytic composite

Assignee: Universal Oil Products Co
•
Filing: 1974-02-19
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Granted: 1975-04-15
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Expires: 1994-02-19
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Abstract

Abstract Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with a trimetallic acidic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a bismuth component and a halogen component with a porous carrier material. The platinum or palladium component, iridium component and halogen component are present in the trimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % iridium and about 0.1 to about 3.5 wt. % halogen. The bismuth component is present in amounts corresponding to an atomic ratio of bismuth to platinum or palladium of about 0.1:1 to about 1:1. Moreover, these metallic components are uniformly dispersed throughout the porous carrier material in carefully controlled oxidation states such that substantially all of the platinum or palladium, iridium and bismuth components are present therein in the corresponding elemental metallic states. A specific example of the type of hydrocarbon conversion process disclosed is a process for the catalytic reforming of a low-octane gasoline fraction wherein the gasoline fraction and hydrogen stream are contacted with the acidic trimetallic catalyst disclosed herein at reforming conditions.

Inventors

  • 👤 Frederick C Wilhelm

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 02:32
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/644; B01J23/6447; B01J37/00; B01J37/22; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 120 words
A PROCESS FOR CONVERTING A HYDROCARBON CHARGE STOCK WHICH COMPRISES CONTACTING THE HYDROCARBON CHARGE STOCK, AT HYDROCARBON CONVERSION CONDITIONS, WITH A CATALYST COMPOSITE COMPRISING A POROUS CARRIER MATERIAL CONTAINING ON AN ELEMENTAL BASIS, ABOUT 0.01 TO ABOUT 2 WT. % PLATINUM OR PALLADIUM, ABOUT 0.01 TO ABOUT 2 WT. % IRIDIUM, ABOUT 0.1 TO ABOUT 3.5 WT. % HALOGEN AND BISMUTH IN AN AMOUNT SUFFICIENT TO RESULT IN AN ATOMIC RATIO OF BISMUTH TO PLATINUM OR PALLADIUM OF ABOUT 0.1:1 TO ABOUT 1:1 WHEREIN THE PLATINUM OR PALLADIUM, IRIDIUM AND BISMUTH ARE UNIFORMLY DISPERSED THROUGH OUT THE POROUS CARRIER MATERIAL AND WHEREIN SUBSTANTIALLY ALL OF THE PLATINUM OF PALLADIUM, IRIDIUM AND BISMUTH ARE PRESENT IN THE CORRESPONDING ELEMENTAL METALLIC STATES.
Claim 2
Dependent Claim 120 words
A PROCESS FOR CONVERTING A HYDROCARBON CHARGE STOCK WHICH COMPRISES CONTACTING THE HYDROCARBON CHARGE STOCK, AT HYDROCARBON CONVERSION CONDITIONS, WITH A CATALYST COMPOSITE COMPRISING A POROUS CARRIER MATERIAL CONTAINING ON AN ELEMENTAL BASIS, ABOUT 0.01 TO ABOUT 2 WT. % PLATINUM OR PALLADIUM, ABOUT 0.01 TO ABOUT 2 WT. % IRIDIUM, ABOUT 0.1 TO ABOUT 3.5 WT. % HALOGEN AND BISMUTH IN AN AMOUNT SUFFICIENT TO RESULT IN AN ATOMIC RATIO OF BISMUTH TO PLATINUM OR PALLADIUM OF ABOUT 0.1:1 TO ABOUT 1:1 WHEREIN THE PLATINUM OR PALLADIUM, IRIDIUM AND BISMUTH ARE UNIFORMLY DISPERSED THROUGH OUT THE POROUS CARRIER MATERIAL AND WHEREIN SUBSTANTIALLY ALL OF THE PLATINUM OF PALLADIUM, IRIDIUM AND BISMUTH ARE PRESENT IN THE CORRESPONDING ELEMENTAL METALLIC STATES.
Claim 3
Dependent Claim 13 words
A process as defined in claim 1 wherein the halogen is combined chloride.
Claim 4
Dependent Claim 17 words
A process as defined in claim 1 wherein the porous carrier material is a refractory inorganic oxide.
Claim 5
Dependent Claim 16 words
A process as defined in claim 1 wherein the porous carrier material consists essentially of alumina.
Claim 6
Dependent Claim 23 words
A process as defined in claim 1 wherein the atomic ratio of bismuth to platinum or palladium is about 0.1:1 to about 0.75:1.
Claim 7
Dependent Claim 25 words
A process as defined in claim 1 wherein the catalytic composite contains about 0.05 to about 0.5 wt. % sulfur, calculated on an elemental basis.
Claim 8
Dependent Claim 27 words
A process as defined in claim 1 wherein the atomic ratio of iridium to platinum or palladium contained in the composite is about 0.1:1 to about 2:1.
Claim 9
Dependent Claim 50 words
A process as defined in claim 1 wherein the catalytic composite contains about 0.05 to about 1 wt. 5 platinum, about 0.05 to about 1 wt. % iridium, about 0.5 to about 1.5 wt. % halogen and an atomic ratio of bismuth to platinum of about 0.1:1 to about 0.75:1.
Claim 10
Dependent Claim 26 words
A process as defined in claim 1 wherein teh contacting of the hydrocarbon charge stock with the catalytic composite is performed in the presence of hydrogen.
Claim 11
Dependent Claim 55 words
A process as defined in claim 1 wherein the type of hydrocarbon conversion is catalytic reforming of a gasoline fraction to produce a high-octane reformate, wherein the hydrocarbon charge stock is contained in the gasoline fraction, wherein the contacting is performed in the presence of hydrogen and wherein the hydrocarbon conversion conditions are reforming conditions.
Claim 12
Dependent Claim 56 words
A process as defined in claim 10 wherein the reforming conditions include a temperature of about 800* to 1,100* F., a pressure of about 1 to about 1,000 psig., a liquid hourly space velocity of about 0.1 to about 10 hr. 1 and a mole ratio of hydrogen to hydrocarbon of about 1:1 to about 20:1.
Claim 13
Dependent Claim 18 words
A process as defined in claim 10 wherein the contacting step is performed in a substantially water-free environment.
Claim 14
Dependent Claim 21 words
A process as defined in claim 10 wherein the reforming conditions include a pressure of about 50 to about 350 psig.

References Cited (Backward Citations)

US3156737A Cited
US3206391A Cited
US3291755A Cited
US3511888A Cited
US3651162A Cited
US3651163A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-04-14 1978-10-14 1979-04-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-04-14 1982-10-14 1983-04-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-04-14 1986-10-14 1987-04-15 $7700.00 Window Closed / Lapsed

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