Patent US4031007A successfully refreshed from Google Patents.
US4031007A
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Slop oil treating system
Assignee: Citgo Petroleum Corp
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Filing: 1976-08-16
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Granted: 1977-06-21
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Expires: 1996-08-16
Abstract
Abstract A conductive interface forms between the oil and water layers in a coalescer apparatus for treating slop oil. The presence of this interface is detected by (a) a capacitance probe and (b) extensions on the coalescer plates. Changes in the feed and discharge rates can then be made, assuring continuous operation.
Inventors
- 👤 Austin V. Sierra, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:29
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; B01D17/06; Y; Y10; Y10S; Y10S210/00; Y10S210/05
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
A method of treating slop oil in an electric coalescer apparatus, in which the oil-water emulsion feed is treated with chemicals, the mixture is fed to the coalescer, and the emulsion mixture is broken by direct electric current to give oil and water layers, wherein the improvement comprises: a. employing a probe that produces a signal when the interface between the oil and water layers approaches a pre-determined level in the coalescer, and b. employing vertically-placed extensions on the bottoms of at least two of the coalescer plates, said extensions acting as a warning device, said improvement offering a continuous method of treatment.
Claim 2
Independent Claim
103 words
A method of treating slop oil in an electric coalescer apparatus, in which the oil-water emulsion feed is treated with chemicals, the mixture is fed to the coalescer, and the emulsion mixture is broken by direct electric current to give oil and water layers, wherein the improvement comprises: a. employing a probe that produces a signal when the interface between the oil and water layers approaches a pre-determined level in the coalescer, and b. employing vertically-placed extensions on the bottoms of at least two of the coalescer plates, said extensions acting as a warning device, said improvement offering a continuous method of treatment.
Claim 3
Dependent Claim
13 words
The method of claim 1, wherein the probe is an electrical capacitance probe.
Claim 4
Dependent Claim
25 words
The method of claim 1, wherein the slop oil feed to the coalescer is mixed with water to insure a two-phase system in the coalescer.
References Cited (Backward Citations)
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US2797284A
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US2984360A
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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) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |