US3607127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conversion of hydrocarbons
Assignee: MW Kellogg Co
•
Filing: 1970-01-23
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Granted: 1971-09-21
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Expires: 1990-01-23
Abstract
Abstract An apparatus for the catalytic conversion of hydrocarbons at short contact times, the apparatus including a transfer line reactor having a vertical riser portion, a crossover portion and a downcomer portion.
Inventors
- 👤 Robert W Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:34
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
18 words
An apparatus according to claim 1 in which said means for lateral transport is a lateral crossover portion.
Claim 2
Dependent Claim
56 words
An apparatus according to claim 1, in which said first device is provided with at least two outlets, each of said outlets being in direct communication with means for lateral passage of the suspension followed by a second device for changing the direction of flow of suspension exiting said means and a substantially vertical downcomer portion.
Claim 3
Dependent Claim
26 words
An apparatus according to claim 1, in which a vessel is provided which contains therewithin at least the outlet of the downcomer of said elongated conduit.
Claim 4
Dependent Claim
21 words
An apparatus according to claim 1, in which said means for separating the catalyst from the hydrocarbon vapors is a cyclone.
Claim 5
Dependent Claim
18 words
An apparatus according to claim 4, in which the outlet section of the downcomer is an apertured conduit.
Claim 6
Dependent Claim
20 words
An apparatus according to claim 4, in which the riser portion and the crossover portion are external to the vessel.
Claim 7
Dependent Claim
41 words
An apparatus according to claim 4, in which the riser portion and a first section of the crossover portion are external to the vessel and the remaining section of the crossover portion and the downcomer portion are contained within the vessel.
Claim 8
Dependent Claim
39 words
An apparatus according to claim 4, in which the cross-sectional area of the vessel is substantially larger than that of the downcomer to provide for a rapid reduction in the velocity of the suspension upon discharge from the downcomer.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |