US3716478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation treatment of hydrocarbon oil
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1970-02-10
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Granted: 1973-02-13
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Expires: 1990-02-10
Abstract
Abstract Hydrogenation treatments of hydrocarbon oil is carried out in a catalyst-charged reaction vessel into the lower portion of which is fed a flow of a mixture of hydrocarbon oil and hydrogen or hydrogen-containing gas. The supply velocity of the mixture is adjusted so that catalyst particles in the catalyst layer do not fluidize. At the lower portion of the reaction vessel is provided an appropriate catalyst-withdrawing means by which deactivated catalyst particles are withdrawn during reaction.
Inventors
- 👤 Y Kodera
- 👤 J Kato
- 👤 H Ohse
- 👤 S Ohshima
- 👤 K Shimada
- 👤 M Suzuki
- 👤 Y Kiriki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:52
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; C; C10; C10G; C10G35/00; C10G35/04; C10G35/10; C10G45/00; C10G45/02; C10G45/14; C10G45/16; C10G47/00; C10G47/24; C10G47/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A process for the hydrogenation reaction treatment of hydrocarbon oils which comprises the steps of forming a released bed of homogeneous catalyst particles constituting a state with no substantial mixing and fluidization of said catalyst particles in a substantially stationary not fluidized condition in a reaction vessel by adjusting the linear velocity of the hydrocarbon oil reaction liquid fed from the lower portion of the reaction vessel, forming f fluidized bed of said catalyst at the bottom and adjacent to said released bed, effecting the hydrogenation of said hydrocarbon oil reaction liquid in the so formed released and fluidized beds, and continuously withdrawing deactivated catalyst from said released bed from the bottom of said reaction vessel while said reaction is in progress, and supplying fresh catalyst from an upper portion of said reaction vessel to the top of said released bed.
Claim 2
Dependent Claim
141 words
A process for the hydrogenation reaction treatment of hydrocarbon oils which comprises the steps of forming a released bed of homogeneous catalyst particles constituting a state with no substantial mixing and fluidization of said catalyst particles in a substantially stationary not fluidized condition in a reaction vessel by adjusting the linear velocity of the hydrocarbon oil reaction liquid fed from the lower portion of the reaction vessel, forming f fluidized bed of said catalyst at the bottom and adjacent to said released bed, effecting the hydrogenation of said hydrocarbon oil reaction liquid in the so formed released and fluidized beds, and continuously withdrawing deactivated catalyst from said released bed from the bottom of said reaction vessel while said reaction is in progress, and supplying fresh catalyst from an upper portion of said reaction vessel to the top of said released bed.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |