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US3894103A
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Aromatization reactions
Assignee: Mobil Oil AS
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Filing: 1973-08-09
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Granted: 1975-07-08
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Expires: 1993-08-09
Abstract
Abstract In the conversion of lower aliphatic alcohols, carbonyls, ethers or analogues thereof to higher hydrocarbons by contacting such with a crystalline aluminosilicate zeolite having a constraint index of about 1 to 12 at up to about 850*F, the improvement, whereby increasing the liquid, C5 , yield, engendered by using such catalyst having a silica to alumina ratio of about 60 to 600.
Inventors
- 👤 Clarence D Chang
- 👤 Anthony J Silvestri
- 👤 Robert L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:52
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; B01J29/40; C; C10; C10G; C10G3/00; C10G3/42; C10G3/44; C10G3/48; C10G3/49; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; C07; C07C; C07C2521/00; C07C2521/02; C07C2521/04; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/40; C07C2529/42; C07C2529/44; C07C2529/46; C07C2529/65; C07C2529/70; C10G2300/00; C10G2300/40; C10G2300/4006; C10G2400/00; C10G2400/02; C10G2400/30; Y; Y02; Y02P; Y02P30/00; Y02P30/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
IN THE PROCESS OF CONVERTING AS A REACTANT AT LEAST ONE LOWER, ALIPHATIC ORGANIC COMPOUND CONTAINING ABOUT 1 TO 8 CARBON ATOMS AND AT LEAST ONE HETERO CONSTITUENT SLECTED FROM THE GROUP CONSISTING OF OXYGEN, SULFUR, NITROGEN AND HALOGEN, BY CONTACTING SUCH WITH A CRYSTALLINE ALUMINOSILICATE ZEOLITE HAVING A CONSTANT INDEX OF ABOUT 1 TO 12 AND HAVING A SILICA TO ALUMINA RATIO OF AT LEAST ABOUT 12 AT ABOUT 500* TO 850*F. TO PRODUCE A PRODUCT COMPRISING A HIGHLY AROMATIC C5+ GASOLINE BOLING RANGE LIQUID HAVING A HIGH OCTANE NUMBER, THE IMPROVEMENT, WHEREBY INCREASING THE PROPORTION OF THE PRODUCT WHICH IS C5+ GASOLINE, WHICH COMPRISES UTILZING AS THE CATALYST, A ZEOLITE AS DEFINED HAVING A SILICA TO ALUMINA RATIO OF ABOUT 60 TO 600:1 WHILE MAINTAINING THE OTHER OPERATING PARAMETERS OF THE PROCESS.
Claim 2
Dependent Claim
134 words
IN THE PROCESS OF CONVERTING AS A REACTANT AT LEAST ONE LOWER, ALIPHATIC ORGANIC COMPOUND CONTAINING ABOUT 1 TO 8 CARBON ATOMS AND AT LEAST ONE HETERO CONSTITUENT SLECTED FROM THE GROUP CONSISTING OF OXYGEN, SULFUR, NITROGEN AND HALOGEN, BY CONTACTING SUCH WITH A CRYSTALLINE ALUMINOSILICATE ZEOLITE HAVING A CONSTANT INDEX OF ABOUT 1 TO 12 AND HAVING A SILICA TO ALUMINA RATIO OF AT LEAST ABOUT 12 AT ABOUT 500* TO 850*F. TO PRODUCE A PRODUCT COMPRISING A HIGHLY AROMATIC C5+ GASOLINE BOLING RANGE LIQUID HAVING A HIGH OCTANE NUMBER, THE IMPROVEMENT, WHEREBY INCREASING THE PROPORTION OF THE PRODUCT WHICH IS C5+ GASOLINE, WHICH COMPRISES UTILZING AS THE CATALYST, A ZEOLITE AS DEFINED HAVING A SILICA TO ALUMINA RATIO OF ABOUT 60 TO 600:1 WHILE MAINTAINING THE OTHER OPERATING PARAMETERS OF THE PROCESS.
Claim 3
Dependent Claim
12 words
The improved process claimed in claim 1 wherein said reactant comprises methanol.
Claim 4
Dependent Claim
12 words
The improved process claimed in claim 1 wherein said catalyst comprises H-ZSM-5.
Claim 5
Dependent Claim
16 words
The improved process claimed in claim 1 wherein said catalyst comprises H-ZSM-5 in an alumina matrix.
Claim 6
Dependent Claim
14 words
The improved process claimed in claim 1 carried out at about 650* to 750*F.
Claim 7
Dependent Claim
22 words
The improved process claimed in claim 1 wherein said zeolite catalyst has a silica to alumina ratio of about 60 to 350.
Claim 8
Dependent Claim
28 words
The improved process claimed in claim 1 wherein said zeolite has a crystal density in the hydrogen form of not substantially below about 1.6 grams per cubic centimeter.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |