US4393259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for conversion of propane or butane to gasoline
Assignee: Honeywell UOP LLC
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Filing: 1981-08-05
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Granted: 1983-07-12
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Expires: 2001-08-05
Abstract
Abstract A multi-step hydrocarbon conversion process for producing gasoline from propane or butane is disclosed. The feed hydrocarbon is passed into a dehydrogenation zone and the entire dehydrogenation zone effluent including hydrogen and light by-products is then passed into a catalytic condensation zone wherein the resulting olefins are converted into dimers and trimers. The condensation zone effluent stream is passed into a separation zone in which the dimers and trimers are concentrated into a product stream, with unconverted feed hydrocarbon and hydrogen being recycled to the dehydrogenation zone.
Inventors
- 👤 Dennis J. Ward
- 👤 Bipin V. Vora
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:05
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C07; C07C; C07C11/00; C07C11/02; C07C11/107; C10G; C10G2400/00; C10G2400/02; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
A hydrocarbon conversion process which comprises the steps of: (a) passing a feed stream comprising a butane and a hereinafter characterized recycle stream into a dehydrogenation zone operated at butane dehydrogenation conditions and thereby forming a dehydrogenation zone effluent stream comprising hydrogen, a butane and a butylene; (b) passing the entire dehydrogenation zone effluent stream into a catalytic condensation zone operated at conditions which effect the conversion of butylene into C 8 hydrocarbons and thereby forming a catalytic condensation zone effluent stream which comprises hydrogen, a butane and C 8 hydrocarbons; and, (c) separating the catalytic condensation zone effluent stream into a vent gas stream comprising hydrogen, said recycle stream, which comprises hydrogen and a butane, and a product stream which comprises C 8 hydrocarbons.
Claim 2
Dependent Claim
125 words
A hydrocarbon conversion process which comprises the steps of: (a) passing a feed stream comprising a butane and a hereinafter characterized recycle stream into a dehydrogenation zone operated at butane dehydrogenation conditions and thereby forming a dehydrogenation zone effluent stream comprising hydrogen, a butane and a butylene; (b) passing the entire dehydrogenation zone effluent stream into a catalytic condensation zone operated at conditions which effect the conversion of butylene into C 8 hydrocarbons and thereby forming a catalytic condensation zone effluent stream which comprises hydrogen, a butane and C 8 hydrocarbons; and, (c) separating the catalytic condensation zone effluent stream into a vent gas stream comprising hydrogen, said recycle stream, which comprises hydrogen and a butane, and a product stream which comprises C 8 hydrocarbons.
Claim 3
Dependent Claim
13 words
The process of claim 1 further characterized in that the butane is isobutane.
Claim 4
Dependent Claim
20 words
The process of claim 2 further characterized in that an SPA type catalyst is utilized within the catalytic condensation zone.
Claim 5
Dependent Claim
129 words
A hydrocarbon conversion process which comprises the steps of: (a) passing a feed stream comprising a propane and a hereinafter characterized recycle stream into a dehydrogenation zone operated at propane dehydrogenation conditions and thereby forming a dehydrogenation zone effluent stream comprising hydrogen, propane and propylene; (b) passing the entire dehydrogenation zone effluent stream into a catalytic condensation zone operated at conditions which effect the conversion of propylene into C 6 and C 9 hydrocarbons and therby forming a catalytic condensation zone effluent stream which comprises hydrogen, propane and C 6 and C 9 hydrocarbons; and (c) separating the catalytic condensation zone effluent stream into a vent gas comprising hydrogen, said recycle stream which comprises hydrogen and propane, and a product stream which comprises C 6 and C 9 hydrocarbons.
Claim 6
Dependent Claim
129 words
A hydrocarbon conversion process which comprises the steps of: (a) passing a feed stream comprising a propane and a hereinafter characterized recycle stream into a dehydrogenation zone operated at propane dehydrogenation conditions and thereby forming a dehydrogenation zone effluent stream comprising hydrogen, propane and propylene; (b) passing the entire dehydrogenation zone effluent stream into a catalytic condensation zone operated at conditions which effect the conversion of propylene into C 6 and C 9 hydrocarbons and therby forming a catalytic condensation zone effluent stream which comprises hydrogen, propane and C 6 and C 9 hydrocarbons; and (c) separating the catalytic condensation zone effluent stream into a vent gas comprising hydrogen, said recycle stream which comprises hydrogen and propane, and a product stream which comprises C 6 and C 9 hydrocarbons.
Claim 7
Dependent Claim
20 words
The process of claim 4 further characterized in that an SPA type catalyst is utilized within the catalytic condensation zone.
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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) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |