Patent US917891A successfully refreshed from Google Patents.
US3798002A
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Computer control system for refining and hydrogenation of unsaturated hydrocarbons
Assignee: Westinghouse Electric Corp
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Filing: 1971-12-14
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Granted: 1974-03-19
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Expires: 1991-12-14
Abstract
Abstract Described is a control system for a refining hydrogenation and deodorizing plant for edible oils and the like wherein various system variables are converted into signals which are fed to a computer which controls the system to optimize performance and reduce oil losses.
Inventors
- 👤 R Putman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:59
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/0033; C; C10; C10G; C10G2400/00; C10G2400/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
66 words
The combination of claim 1 including means for producing an electrical signal which varies as a function of the pressure of the gases above the level of the liquid hydrocarbons in said vessel, and means including said computer means for controlling the pressure of the hydrogen fed into said vessel as a function of the magnitude of said signal which varies as a function of pressure.
Claim 2
Dependent Claim
56 words
The combination of claim 1 including cooling coil means within said vessel, means for producing an electrical signal which varies as a function of the temperature of the liquid hydrocarbons within said vessel, and means including said computer means responsive to said electrical signal for controlling the amount of coolant passing through said cooling coil means.
Claim 3
Dependent Claim
55 words
The combination of claim 1 including a flowmeter, a density meter and a thermal conductivity analyzer through which hydrogen purged from said vessel is passed and wherein the amount of hydrogen purged from said vessel is determined by electrical signals fed to said computer from said flowmeter, the density meter and the thermal conductivity analyzer.
References Cited (Backward Citations)
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |