US3607723A
Expired / Lapsed
US
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Split flow hydrocracking process
Assignee: Texaco Inc
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Filing: 1969-03-28
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Granted: 1971-09-21
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Expires: 1989-03-28
Abstract
Abstract A hydrocracking process for the substantially complete hydrocracking of a heavy hydrocarbon charge stock by introducing a heavy hydrocarbon charge stock into a catalyst zone comprising a first catalyst zone below and a second catalyst zone above the point of entry of the charge stock, in the presence of hydrogen which is introduced in countercurrent relationship to said charge stock in first catalyst zone and maintained at a rate sufficient to provide for lower boiling liquid contact of the second catalyst zone followed by recycling the remaining hydrocarbon material from the first catalyst zone to the charge stock.
Inventors
- 👤 Reese A Peck
- 👤 Raymond F Wilson
- 👤 Frank E Guptill Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:48
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/14; C10G65/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
25 words
A process of claim 1 wherein the hydrogen gas rate is from 3000 SCF per barrel to about 25,000 SCF per barrel total liquid feed.
Claim 2
Dependent Claim
33 words
A process of claim 1 wherein the charge stock contains 850 F.+ hydrocarbons and the percent conversion by weight per single pass of 850 F.+ hydrocarbons is from about 15 to about 80.
Claim 3
Dependent Claim
33 words
A process of claim 1 wherein the charge stock contains 850 F.+ hydrocarbons and the percent conversion by weight per single pass of 850* F.+ hydrocarbons is from about 20 to about 60.
Claim 4
Dependent Claim
33 words
A process of claim 2 wherein the charge stock contains 850 F.+ hydrocarbons and the percent conversion by weighT per single pass of 850 F.+ hydrocarbons is from about 20 to about 60.
Claim 5
Dependent Claim
28 words
A process of claim 1 wherein the ratio on a volume basis of high boiling effluent to heavy hydrocarbon charge stock is from about 0.25:1 to about 2:1.
Claim 6
Dependent Claim
28 words
A process of claim 2 wherein the ratio on a volume basis of high boiling effluent to heavy hydrocarbon charge stock is from about 0.25:1 to about 2:1.
Claim 7
Dependent Claim
28 words
A process of claim 4 wherein the ratio on a volume basis of high boiling effluent to heavy hydrocarbon charge stock is from about 0.75:1 to about 1.25:1.
Claim 8
Dependent Claim
23 words
A process of claim 1 wherein the lower boiling liquid has at least about 97% by weight of the liquid boiling below 850*F.
Claim 9
Dependent Claim
23 words
A process of claim 2 wherein the lower boiling liquid has at least about 97% by weight of the liquid boiling below 850*F.
References Cited (Backward Citations)
No citation records indexed.
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 |