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Patent US4218388A successfully refreshed from Google Patents.
US4218388A
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Process for preparing hydrocarbons from gasification of coal
Assignee: Shell USA Inc
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Filing: 1978-12-11
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Granted: 1980-08-19
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Expires: 1998-12-11
Abstract
Abstract Synthesis gas is converted into gasoline by contacting the gas with a crystalline aluminosilicate zeolite catalyst, the process being characterized by conversion of by-product isobutane into gasoline by alkylation.
Inventors
- 👤 Lambert Schaper
- 👤 Bernardus J. Runderkamp
- 👤 Swan T. Sie
- 👤 Nicoline W. Spakman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:48
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C10G; C10G3/00; C10G3/42; C10G3/44; C10G3/48; C10G3/49; C10J; C10J3/00; C10J3/02; C10J3/06; C10J3/46; C10J3/463; C10J3/48; C10J3/72; C10J3/74; C10J3/78; C10J3/82; C10J3/84; C07C2529/00; C07C2529/04; C07C2529/06; C10G2300/00; C10G2300/10; C10G2300/1022; C10G2400/00; C10G2400/02; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0943; C10J2300/0946; C10J2300/0953; C10J2300/0959; C10J2300/0973; C10J2300/0976; Y; Y02; Y02P; Y02P30/00; Y02P30/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A process for preparing liquid hydrocarbons from coal, comprising: (a) converting coal into a mixture of carbon monoxide and hydrogen by gasification at a temperature between 1050° C. and 2000° C.; (b) converting the mixture of carbon monoxide and hydrogen into an aromatic hydrocarbon mixture in the presence of a catalyst which contains a crystalline aluminosilicate zeolite having an SiO 2 /Al 2 O 3 molar ratio of at least 12 and a constraint index between 1 and 12; (c) separating from the aromatic hydrocarbon mixture an isobutane-containing gaseous fraction and an aromatic liquid fraction boiling in the gasoline range; (d) converting the isobutane-containing gaseous fraction by alkylation into a product from which a fraction boiling in the gasoline range is separated; and (e) mixing the two fractions boiling in the gasoline range obtained according to (c) and (d).
Claim 2
Dependent Claim
139 words
A process for preparing liquid hydrocarbons from coal, comprising: (a) converting coal into a mixture of carbon monoxide and hydrogen by gasification at a temperature between 1050° C. and 2000° C.; (b) converting the mixture of carbon monoxide and hydrogen into an aromatic hydrocarbon mixture in the presence of a catalyst which contains a crystalline aluminosilicate zeolite having an SiO 2 /Al 2 O 3 molar ratio of at least 12 and a constraint index between 1 and 12; (c) separating from the aromatic hydrocarbon mixture an isobutane-containing gaseous fraction and an aromatic liquid fraction boiling in the gasoline range; (d) converting the isobutane-containing gaseous fraction by alkylation into a product from which a fraction boiling in the gasoline range is separated; and (e) mixing the two fractions boiling in the gasoline range obtained according to (c) and (d).
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-19 | 1984-02-18 | 1984-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-19 | 1988-02-18 | 1988-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-19 | 1992-02-18 | 1992-08-19 | $7700.00 | Window Closed / Lapsed |