US3644196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of motor fuel-blending components
Assignee: Phillips Petroleum Co
•
Filing: 1970-07-06
•
Granted: 1972-02-22
•
Expires: 1990-07-06
Abstract
Abstract Motor fuel-blending components are produced by a combination of steps comprising naphtha reforming, hydrogenation of aromatics, e.g., benzene, separated from the reformate, and isomerization of cyclohexane to methylcyclopentane.
Inventors
- 👤 Shelby D Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C07; C07C; C07C13/00; C07C13/02; C07C13/08; C07C13/10; C10G; C10G61/00; C10G61/02; C10G61/06; C07C2601/00; C07C2601/06; C07C2601/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
50 words
A process in accordance with claim 1 wherein: at least a portion of said raffinate produced in step (c) is recovered as another product of the process; and at least a portion of said stream comprising C7 hydrocarbons from step (b) is also recovered as another product of the process.
Claim 2
Dependent Claim
35 words
A process in accordance with claim 1 wherein at least a portion of said stream of C7 hydrocarbons of step (b) is blended with said methylcyclopentane of step (e) as a product of the process.
Claim 3
Dependent Claim
33 words
A process in accordance with claim 1 wherein at least a portion of said raffinate produced in step (c) is blended with said methylcyclopentane of step (e) as a produCt of the process.
Claim 4
Dependent Claim
33 words
A process in accordance with claim 1 wherein at least a portion of said stream of C7 hydrocarbons of step (b) is recycled to said step (a) as a portion of said feedstock.
Claim 5
Dependent Claim
31 words
A process in accordance with claim 1 wherein at least a portion of said raffinate produced in step (c) is recycled to said step (a) as a portion of said feedstock.
Claim 6
Dependent Claim
57 words
A process in accordance with claim 1 wherein: said methylcyclopentane stream of step (e) is solvent extracted to recover therefrom a second aromatic extract comprising benzene, and a second raffinate consisting essentially of purified methylcyclopentane which is recovered as a product of the process; and said second aromatic extract is passed to said hydrogenation of step (d).
Claim 7
Dependent Claim
44 words
A process according to claim 1 wherein: said stream comprising C7 hydrocarbons of step (b) is recycled to step (a) as a portion of said feedstock; and said raffinate produced in step (c) is recycled to step (a) as a portion of said feedstock.
Claim 8
Dependent Claim
56 words
A process according to claim 8 wherein: said methylcyclopentane stream of step (e) is solvent extracted to recover therefrom a second aromatic extract comprising benzene, and a second raffinate consisting essentially of purified methylcyclopentane which is recovered as a product of the process; and said second aromatic extract is passed to said hydrogenation of step (d).
Claim 9
Dependent Claim
58 words
A process according to claim 1 wherein: prior to said step (a), said naphtha feedstock is solvent extracted to produce an aromatic extract comprising benzene, and a raffinate comprising paraffinic and naphthenic hydrocarbons; said last-mentioned aromatic extract is passed to said fractionation of step (b); and said last-mentioned raffinate is passed to said step (a) as said feedstock.
Claim 10
Dependent Claim
44 words
A process according to claim 10 wherein: said stream comprising C7 hydrocarbons of step (b) is recycled to step (a) as a portion of said feedstock; and said raffinate produced in step (c) is recycled to step (a) as a portion of said feedstock.
Claim 11
Dependent Claim
56 words
A process according to claim 11 wherein: said methylcyclopentane stream of step (e) is solvent extracted to recover therefrom a second aromatic extract comprising benzene, and a second raffinate consisting essentially of purified methylcyclopentane which is recovered as a product of the process; and said second aromatic extract is passed to said hydrogenation of step (d).
Claim 12
Dependent Claim
49 words
A process in accordance with claim 12 wherein: prior to said step (b), a stream of hydrogen is separated from said reformate stream; and at least a portion of said hydrogen is passed to said hydrogenation of step (e) as at least a portion of the hydrogen used therein.
Claim 13
Dependent Claim
23 words
A process in accordance with claim 13 wherein a portion of said separated hydrogen is returned to said reforming operation of step (a).
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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |