US3207691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contacting process using a preferentially wetted fibrous bed
Assignee: Shell USA Inc
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Filing: 1962-10-15
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Granted: 1965-09-21
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Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Pieter A Mes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:57
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0446; B01D11/0449; B01D11/0426; B01D11/043; C; C10; C10G; C10G17/00; C10G17/02; C10G17/04; C10G17/06; C10G21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PROCESS FOR THE TREATMENT OF THE FIRST LIQUID PETROLEUM FRACTION WITH A TREATING LIQUID WHICH HAS A HIGHER SPECIFIC GRAVITY AND WHICH IS IMMISCIBLE THEREWITH COMPRISING: (A) PASSING SAID LIQUIDS COUNTERCURRENTLY IN PARALLEL FLOW THROUGH A CONTACT BED CONSISTING ESSENTIALLY OF SOLID, INERT FIBROUS CONTACT MATERIAL WHICH IS PREFERENTIALLY WETTED BY SAID FIRST LIQUID, SAID MATERIAL HAVING A MAXIMUM FIBER DIAMETER NO GREATER THAN ABOUT 0.3 MILIMETERS, WITH THE RATIO BY VOLUME OF TREATING LIQUID TO FIRST LIQUID BEING LESS THAN 1; (B) REGULATING THE QUANTITIES OF THE LIQUID SUPPLIED TO THE CONTACT BED TO MAINTAIN A PREFERENTIAL WETTING OF THE BED BY THE FIRST LIQUID, THEREBY PROVIDING A LARGE CONTACTING SURFACE FOR THE TWO LIQUIDS WITHOUT THE ACCUMULATION OF EXCESS FIRST LIQUID IN THE BED; AND (C) WITHDRAWING THE TWO LIQUIDS FROM THE BED AS CONTINUOUS PHASES WITHOUT THE DISPERSION OF EITHER LIQUID IN THE EMERGING STREAM OF THE OTHER.
Claim 2
Dependent Claim
152 words
A PROCESS FOR THE TREATMENT OF THE FIRST LIQUID PETROLEUM FRACTION WITH A TREATING LIQUID WHICH HAS A HIGHER SPECIFIC GRAVITY AND WHICH IS IMMISCIBLE THEREWITH COMPRISING: (A) PASSING SAID LIQUIDS COUNTERCURRENTLY IN PARALLEL FLOW THROUGH A CONTACT BED CONSISTING ESSENTIALLY OF SOLID, INERT FIBROUS CONTACT MATERIAL WHICH IS PREFERENTIALLY WETTED BY SAID FIRST LIQUID, SAID MATERIAL HAVING A MAXIMUM FIBER DIAMETER NO GREATER THAN ABOUT 0.3 MILIMETERS, WITH THE RATIO BY VOLUME OF TREATING LIQUID TO FIRST LIQUID BEING LESS THAN 1; (B) REGULATING THE QUANTITIES OF THE LIQUID SUPPLIED TO THE CONTACT BED TO MAINTAIN A PREFERENTIAL WETTING OF THE BED BY THE FIRST LIQUID, THEREBY PROVIDING A LARGE CONTACTING SURFACE FOR THE TWO LIQUIDS WITHOUT THE ACCUMULATION OF EXCESS FIRST LIQUID IN THE BED; AND (C) WITHDRAWING THE TWO LIQUIDS FROM THE BED AS CONTINUOUS PHASES WITHOUT THE DISPERSION OF EITHER LIQUID IN THE EMERGING STREAM OF THE OTHER.
References Cited (Backward Citations)
US3014861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |