Patent US4177218A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4177218A Expired / Lapsed US ⏱️ 0.0 years remaining

Dehydrogenation process utilizing multimetallic catalytic composite

Assignee: Honeywell UOP LLC
•
Filing: 1978-06-05
•
Granted: 1979-12-04
•
Expires: 1998-06-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A process for the catalytic dehydrogenation of a dehydrogenatable hydrocarbon is disclosed. The hydrocarbon is passed in contact with a germanium-promoted platinum group metal catalyst at dehydrogenation reaction conditions, said catalyst having been prepared by impregnating a porous high surface area carrier material with a non-aqueous solution of a platinum group metal and a halo-substituted germane containing less than about 4 halo substituents, and drying, calcining and reducing the impregnated carrier material.

Inventors

  • 👤 George J. Antos

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 08:05
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; B01J23/624; B01J37/00; B01J37/02; B01J37/0201; B01J37/0203; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/324; C07C5/325; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 155 words
A process for the catalytic dehydrogenation of a dehydrogenatable hydrocarbon which comprises passing said hydrocarbon in contact with a germanium-promoted platinum group metal catalyst at a liquid hourly space velocity of from about 1 to about 40, a temperature of from about 375° to about 650° C., a pressure of from about 0.1 to about 10 atmospheres, and a hydrogen/hyrocarbon mole ratio of from about 1:1 to about 20:1, said catalyst having been prepared by impregnating a porous high surface area carrier material with a non-aqueous solution of a platinum group metal compound and a halo-substituted germane selected from the group consisting of chloro-, fluoro-, bromo-, and iodo-substituted germanes containing less than 4 halo substituents in an amount to provide a final catalyst containing from about 0.05 to about 1.0 wt. % platinum group metal and from about 0.05 to about 1.0 wt. % germanium, and drying, calcining and reducing the thus impregnated carrier material.
Claim 2
Dependent Claim 155 words
A process for the catalytic dehydrogenation of a dehydrogenatable hydrocarbon which comprises passing said hydrocarbon in contact with a germanium-promoted platinum group metal catalyst at a liquid hourly space velocity of from about 1 to about 40, a temperature of from about 375° to about 650° C., a pressure of from about 0.1 to about 10 atmospheres, and a hydrogen/hyrocarbon mole ratio of from about 1:1 to about 20:1, said catalyst having been prepared by impregnating a porous high surface area carrier material with a non-aqueous solution of a platinum group metal compound and a halo-substituted germane selected from the group consisting of chloro-, fluoro-, bromo-, and iodo-substituted germanes containing less than 4 halo substituents in an amount to provide a final catalyst containing from about 0.05 to about 1.0 wt. % platinum group metal and from about 0.05 to about 1.0 wt. % germanium, and drying, calcining and reducing the thus impregnated carrier material.
Claim 3
Dependent Claim 19 words
The process of claim 1 further characterized in that said soluble platinum group metal compound is a platinum compound.
Claim 4
Dependent Claim 18 words
The process of claim 1 further characterized in that said soluble platinum group metal compound is chloroplatinic acid.
Claim 5
Dependent Claim 16 words
The process of claim 1 further characterized in that said halo-substituted germane is a chloro-substituted germane.
Claim 6
Dependent Claim 14 words
The process of claim 1 further characterized in that said halo-substituted germane is trichlorogermane.
Claim 7
Dependent Claim 16 words
The process of claim 1 further characterized in that said non-aqueous solution is an alcoholic solution.
Claim 8
Dependent Claim 17 words
The process of claim 1 further characterized in that said carrier material is a refractory inorganic oxide.
Claim 9
Dependent Claim 17 words
The process of claim 1 further characterized in that said carrier material is an alumina carrier material.
Claim 10
Dependent Claim 28 words
The process of claim 1 further characterized in that said impregnated carrier material is dried and calcined at a temperature of from about 425° to about 760° C.
Claim 11
Dependent Claim 33 words
The process of claim 1 further characterized in that said germanium-promoted platinum group metal catalyst further contains from about 0.1 to about 5 wt. % alkali metal or alkaline earth metal impregnated thereon.
Claim 12
Dependent Claim 28 words
The process of claim 1 further characterized in that said germanium-promoted platinum group metal catalyst further contains from about 0.1 to about 5 wt. % lithium impregnated thereon.
Claim 13
Dependent Claim 28 words
The process of claim 1 further characterized in that said germanium-promoted platinum group metal catalyst further contains from about 0.1 to about 5 wt. % potassium impregnated thereon.
Claim 14
Dependent Claim 23 words
The process of claim 1 further characterized in that said dehydrogenatable hydrocarbon is passed in contact with said catalyst in admixture with hydrogen.
Claim 15
Dependent Claim 30 words
The process of claim 1 further characterized in that said dehydrogenatable hydrocarbon is passed in contact with said catalyst in admixture with from about 50 to about 10,000 ppm. water.
Claim 16
Dependent Claim 30 words
The process of claim 1 further characterized in that said dehydrogenatable hydrocarbon is an alkyl aromatic hydrocarbon wherein the alkyl substituent contains from about 2 to about 6 carbon atoms.
Claim 17
Dependent Claim 17 words
The process of claim 1 further characterized in that said dehydrogenatable hydrocarbon is an aliphatic paraffinic hydrocarbon.
Claim 18
Dependent Claim 16 words
The process of claim 1 further characterized in that said dehydrogenatable hydrocarbon is a cycloparaffinic hydrocarbon.

References Cited (Backward Citations)

US3647719A Cited
US3772213A Cited
US4101418A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-12-03 1983-06-04 1983-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-12-03 1987-06-04 1987-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-12-03 1991-06-04 1991-12-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag