US4013732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of methanol to gasoline with minimum durene production
Assignee: Mobil Oil AS
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Filing: 1975-10-17
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Granted: 1977-03-22
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Expires: 1995-10-17
Abstract
Abstract The conversion of methanol to gasoline boiling hydrocarbons of low durene content is accomplished with a ZSM5 crystalline zeolite alone or supported by a binder-matrix material comprising primarily materials other than alumina.
Inventors
- 👤 Clarence D. Chang
- 👤 William H. Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:58
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; C; C07; C07C; C07C1/00; C07C1/20; C10; C10G; C10G3/00; C10G3/42; C10G3/44; C10G3/48; C10G3/49; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; C07C2521/00; C07C2521/06; C07C2523/00; C07C2523/06; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/40; C10G2300/00; C10G2300/40; C10G2300/4006; C10G2300/4012; C10G2400/00; C10G2400/02; Y; Y02; Y02P; Y02P30/00; Y02P30/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
99 words
A method for converting a feed material selected from the group comprising methanol, dimethylether, and mixtures thereof to aliphatic and aromatic gasoline boiling components which comprises, passing the feed material at a temperature selected from within the range of 500° F to 1000° F and a pressure below 750 psig in contact with a special class of crystalline zeolite conversion catalysts represented by ZSM5 wherein the crystalline zeolite is used with a binder support material substantially free of aluminum oxide and, recovering an aromatic gasoline product of desired low durene concentration further controlled by using a low operating pressure.
Claim 2
Independent Claim
99 words
A method for converting a feed material selected from the group comprising methanol, dimethylether, and mixtures thereof to aliphatic and aromatic gasoline boiling components which comprises, passing the feed material at a temperature selected from within the range of 500° F to 1000° F and a pressure below 750 psig in contact with a special class of crystalline zeolite conversion catalysts represented by ZSM5 wherein the crystalline zeolite is used with a binder support material substantially free of aluminum oxide and, recovering an aromatic gasoline product of desired low durene concentration further controlled by using a low operating pressure.
Claim 3
Dependent Claim
50 words
The method of claim 1 wherein the crystalline zeolite is supported by a binder or matrix material selected from the group consisting of a Group IVB metal oxide alone a Group IVB metal oxide combined with one of a Group IIB metal or a mixture of Group IVB metal oxides.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein the matrix material comprises a mixture of titanium and zirconium oxides.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein the feed material comprises a mixture of lower alcohols.
Claim 6
Dependent Claim
21 words
The method of claim 1 wherein the catalyst comprises a mixture of ZSM5 crystalline zeolite and a titanium-zirconium oxide matrix material.
Claim 7
Dependent Claim
21 words
The method of claim 1 wherein the catalyst comprises a mixture of ZSM5 crystalline zeolite and a zinc-titanium oxide matrix material.
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) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |