US4120910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatization of ethane
Assignee: Mobil Oil AS
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Filing: 1976-12-27
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Granted: 1978-10-17
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Expires: 1996-12-27
Abstract
Abstract A catalytic process is provided for converting gaseous paraffinic feedstocks containing ethane to liquid aromatics by contacting said gaseous feeds, in the absence of added air or oxygen, under conversion conditions, with a crystalline aluminosilicate zeolite catalyst having incorporated therein a minor amount of a metal selected from Groups VIII, IIB and IB of the Periodic Table and mixtures thereof thereby converting ethane in said feed to aromatics and recovering said aromatics as liquids.
Inventors
- 👤 Pochen Chu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:50
CPC Classifications
C; C07; C07C; C07C2/00; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/40; C07C2529/65; C07C2529/70
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
122 words
A process for producing aromatic compounds which comprises contacting, in the absence of added air or oxygen under conversion conditions, a gaseous paraffinic hydrocarbon feed containing ethane, with a catalyst comprising a crystalline aluminosilicate zeolite characterized by a constraint index within the approximate range of 1 to 12 and a silica to alumina ratio of at least 12, said catalyst having incorporated therein from about 0.01 to 30 weight percent based on the total weight of the catalyst of a metal or metal oxide wherein said metal is selected from the group consisting of Group VIII, IIB and IB metals and mixtures thereof whereby ethane present in said gaseous feed is converted to aromatic compounds and recovering said aromatic compounds as liquids.
Claim 2
Dependent Claim
122 words
A process for producing aromatic compounds which comprises contacting, in the absence of added air or oxygen under conversion conditions, a gaseous paraffinic hydrocarbon feed containing ethane, with a catalyst comprising a crystalline aluminosilicate zeolite characterized by a constraint index within the approximate range of 1 to 12 and a silica to alumina ratio of at least 12, said catalyst having incorporated therein from about 0.01 to 30 weight percent based on the total weight of the catalyst of a metal or metal oxide wherein said metal is selected from the group consisting of Group VIII, IIB and IB metals and mixtures thereof whereby ethane present in said gaseous feed is converted to aromatic compounds and recovering said aromatic compounds as liquids.
Claim 3
Dependent Claim
27 words
The process of claim 1 wherein the metal is selected from the group consisting of copper, zinc, ruthenium, rhenium, rhodium, palladium, platinum, iridium, osmium and mixtures thereof.
Claim 4
Dependent Claim
16 words
The process of claim 2 wherein the metal is copper or zinc or a mixture thereof.
Claim 5
Dependent Claim
33 words
The process of claim 1 wherein the catalyst contains said metal or metal oxide in an amount from about 0.5 to about 10 weight percent based on the total weight of the catalyst.
Claim 6
Dependent Claim
40 words
The process of claim 1 wherein the conversion conditions include a temperature of from about 500° to about 1300° F., a pressure of from about atmospheric to about 100 atmospheres and a WHSV of from about 0.5 to about 100.
Claim 7
Dependent Claim
23 words
The process of claim 1 wherein said crystalline aluminosilicate zeolite is selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-35, and ZSM-38.
Claim 8
Dependent Claim
12 words
The process of claim 6 wherein said zeolite is an acid form.
Claim 9
Dependent Claim
12 words
The process of claim 7 wherein said zeolite is a HZSM-5 zeolite.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |