Patent US923703A successfully refreshed from Google Patents.
US4020119A
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Selective hydrogenation process
Assignee: Phillips Petroleum Co
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Filing: 1975-05-05
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Granted: 1977-04-26
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Expires: 1995-05-05
Abstract
Abstract A method and catalysts for selective hydrogenation and isomerization which involves contacting a feedstream with hydrogen and with various supported catalysts of metallic arsenides and antimonides, with carbon monoxide being optionally introduced into the reaction as a modifier.
Inventors
- 👤 Marvin M. Johnson
- 👤 Donald C. Tabler
- 👤 Gerhard P. Nowack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:14
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/843; C; C07; C07C; C07C7/00; C07C7/148; C07C7/163
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
111 words
A process for hydrotreating an acyclic monoolefin feedstream containing undesirable materials including acetylenic compounds, organic sulfur compounds, carbonyl compounds, diolefins, and other unsaturated impurities to selectively hydrogenate said undesirable materials which comprises contacting hydrogen and said feedstream under hydrogenation conditions with a catalyst consisting essentially of an arsenide having empirical formula MAs x , M being iron, or cobalt and x being a number from about 0.6 to about 1.0 at an elevated temperature sufficient to selectively hydrogenate and remove a substantial portion of said undesirable materials present in said feedstream without significant conversion of acyclic monoolefin to saturates and recovering said acyclic monoolefin feedstream substantially reduced in said undesirable materials.
Claim 2
Dependent Claim
111 words
A process for hydrotreating an acyclic monoolefin feedstream containing undesirable materials including acetylenic compounds, organic sulfur compounds, carbonyl compounds, diolefins, and other unsaturated impurities to selectively hydrogenate said undesirable materials which comprises contacting hydrogen and said feedstream under hydrogenation conditions with a catalyst consisting essentially of an arsenide having empirical formula MAs x , M being iron, or cobalt and x being a number from about 0.6 to about 1.0 at an elevated temperature sufficient to selectively hydrogenate and remove a substantial portion of said undesirable materials present in said feedstream without significant conversion of acyclic monoolefin to saturates and recovering said acyclic monoolefin feedstream substantially reduced in said undesirable materials.
Claim 3
Dependent Claim
55 words
A process according to claim 1 in which said catalyst is supported on a material selected from the group consisting of nonacidic gamma-alumina, silica, magnesia, charcoal, calcium aluminate, and natural and synthetic molecular sieves and in which the metal is present on said support in an amount from about 0.1 to about 20 weight percent.
Claim 4
Dependent Claim
54 words
A process according to claim 1 wherein the contacting includes a temperature of from about 75° F to about 750° F, a pressure of from about atmospheric to about 1,000 psig, and a hydrogen to feed ratio of 0.1 to 1 to 5 to 1, and the contacting is effected under vapor phase conditions.
Claim 5
Dependent Claim
15 words
A process according to claim 1 wherin the catalyst is ferric arsenide, or ferrous arsenide.
Claim 6
Dependent Claim
52 words
A process according to claim 1 for the hydrogenation of an acyclic monoolefin feedstream also containing acetylene wherein the selectivity for the conversion of acetylenes without substantial hydrogenation of the monoolefin to produce a substantially acetylene-free monoolefins stream is accomplished by carrying out the hydrogenation in the presence of added carbon monoxide.
Claim 7
Dependent Claim
52 words
A process according to claim 1 wherein the contacting includes a temperature of from about 200° to about 400° F, a pressure of from about atmospheric to about 1,000 psig, and a hydrogen to feed ratio of 0.1 to 1 to 5 to 1, and the catalyst is ferric or ferrous arsenide.
Claim 8
Dependent Claim
21 words
A process according to claim 1 for hydrotreating feedstreams containing acyclic monoolefins having up to about 15 carbon atoms per molecule.
Claim 9
Dependent Claim
93 words
A process for hydrotreating an acyclic monoolefin feedstream containing undesirable materials including acetylenic compounds, organic sulfur compounds, carbonyl compounds, diolefins, and other unsaturated impurities to selectively hydrogenate said undesirable materials which comprises contacting hydrogen and said feedstream under hydrogenation conditions with a catalyst consisting essentially of an arsenide of iron, or cobalt at an elevated temperature sufficient to selectively hydrogenate and remove a substantial portion of said undesirable materials present in said feedstream without significant conversion of acyclic monoolefin to saturates and recovering said acyclic monoolefin feedstream substantially reduced in said undesirable materials.
Claim 10
Dependent Claim
93 words
A process for hydrotreating an acyclic monoolefin feedstream containing undesirable materials including acetylenic compounds, organic sulfur compounds, carbonyl compounds, diolefins, and other unsaturated impurities to selectively hydrogenate said undesirable materials which comprises contacting hydrogen and said feedstream under hydrogenation conditions with a catalyst consisting essentially of an arsenide of iron, or cobalt at an elevated temperature sufficient to selectively hydrogenate and remove a substantial portion of said undesirable materials present in said feedstream without significant conversion of acyclic monoolefin to saturates and recovering said acyclic monoolefin feedstream substantially reduced in said undesirable materials.
Claim 11
Dependent Claim
102 words
A process for hydrotreating an acyclic monoolefin feedstream containing undesirable materials including acetylenic compounds, organic sulfur compounds, carbonyl compounds, diolefins, and other unsaturated impurities to selectively hydrogenate said undesirable materials which comprises contacting hydrogen and said feedstream under hydrogenation conditions and in the presence of added carbon monoxide with a catalyst consisting essentially of an arsenide of nickel, iron or cobalt at an elevated temperature sufficient to selectively hydrogenate and remove a substantial portion of said undesirable materials present in said feedstream without significant conversion of acyclic monoolefin to saturates and recovering said acyclic monoolefin feedstream substantially reduced in said undesirable materials.
Claim 12
Dependent Claim
102 words
A process for hydrotreating an acyclic monoolefin feedstream containing undesirable materials including acetylenic compounds, organic sulfur compounds, carbonyl compounds, diolefins, and other unsaturated impurities to selectively hydrogenate said undesirable materials which comprises contacting hydrogen and said feedstream under hydrogenation conditions and in the presence of added carbon monoxide with a catalyst consisting essentially of an arsenide of nickel, iron or cobalt at an elevated temperature sufficient to selectively hydrogenate and remove a substantial portion of said undesirable materials present in said feedstream without significant conversion of acyclic monoolefin to saturates and recovering said acyclic monoolefin feedstream substantially reduced in said undesirable materials.
Claim 13
Dependent Claim
73 words
A process according to claim 9 in which said catalyst is supported on a material selected from the group consisting of nonacidic gamma-alumina, silica, magnesia, charcoal, calcium aluminate, and natural and synthetic molecular sieves and in which the metal is present on said support in an amount from about 0.1 to about 20 weight percent and the amount of arsenic present ranges from about 0.05 to about 50 weight percent of said catalyst.
Claim 14
Dependent Claim
26 words
A process according to claim 9 for hydrotreating feedstreams containing acyclic monoolefins having up to about 15 carbons per molecule and the catalyst is nickel arsenide.
Claim 15
Dependent Claim
27 words
A process according to claim 9 wherein feedstream is a heptene feedstream containing organic sulfur compounds and diolefins and the catalyst is nickel arsenide supported on alumina.
Claim 16
Dependent Claim
54 words
A process according to claim 1 wherein the contacting includes a temperature of from about 75° F to about 750° F, a pressure of from about atmospheric to about 1,000 psig, and a hydrogen to feed ratio of 0.1 to 1 to 5 to 1, and the contacting is effected under vapor phase conditions.
References Cited (Backward Citations)
US2511453A
Cited
US3743684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |