US3318102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor-liquid mixing to control refrigerating temperature in liquefaction of gaseous material
Assignee: Phillips Petroleum Co
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Filing: 1964-08-24
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Granted: 1967-05-09
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Miles L Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:50
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/06; F25J3/0605; F25J3/062; F25J3/063; F25J3/0635; F25J3/0655; F25J2210/00; F25J2210/12; F25J2270/00; F25J2270/12; F25J2270/60; F25J2270/90; F25J2270/902; F25J2280/00; F25J2280/02; Y; Y10; Y10S; Y10S62/00; Y10S62/931; Y10S62/932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
211 words
A METHOD FOR MAINTAINING A COOLING ZONE FOR AN IMPURE HYDROGEN STREAM CONTAINING AT LEAST 80 MOL PERCENT HYDROGEN AND FROM 10 TO 20 MOL PERCENT OF HYDROCARBONS HAVINGS FROM 1 TO 17 CARBON ATOMS PER MOLECULE AT A CONSTANT TEMPERATURE AND PRESSURE NOTWITHSTANDING NOR OR LOW LOAD COOLING CONDITIONS WHICH CAUSE DECREASED PRESSURES AND THEREFORE TEMPERATURES IN SAID ZONE WHICH COMPRISES IN RESPONSE TO SAID DECREASED PRESSURE PROVIDING A STREAM OF HOT PROPYLENE WHICH IS AT A TEMPERATURE IN THE RANGE OF FROM 150*F. TO 170*F. AND A PRESSURE IN THE RANGE OF FROM 265 P.S.I.A. TO 275 P.S.I.A., PROVIDING A STREAM OF COOL PROPYLENE WHICH IS AT A TEMPERATURE IN THE RANGE OF FROM -45*F. TO -55*F. AND A PRESSURE IN THE RANGE OF FROM 18 P.S.I.A. TO 13 P.S.I.A, MIXING SAID HOT PROPYLENE AND COOL PROPYLENE RESPECTIVELY IN A WEIGHT RATIO OF FROM 2/1 TO 4/1 TO THEREBY FORM A MIXTURE WHICH IS A TEMPERATURE IN THE RANGE OF FROM -45*F. TO -55*F. AND A PRESSURE IN THE RANGE OF FROM 18 P.S.I.A. TO 13 P.S.I.A. AND ADDING THE MIXTURE OF SAID ZONE IN AMOUNTS SUFFICIENT TO RAISE PRESSURE IN SAID ZONE TO THE DESIRED CONSTANT PRESSURE, AND PASSING IMPURE HYDROGEN IN HEAT EXCHANGE WITH SAID COOLING ZONE.
Claim 2
Independent Claim
211 words
A METHOD FOR MAINTAINING A COOLING ZONE FOR AN IMPURE HYDROGEN STREAM CONTAINING AT LEAST 80 MOL PERCENT HYDROGEN AND FROM 10 TO 20 MOL PERCENT OF HYDROCARBONS HAVINGS FROM 1 TO 17 CARBON ATOMS PER MOLECULE AT A CONSTANT TEMPERATURE AND PRESSURE NOTWITHSTANDING NOR OR LOW LOAD COOLING CONDITIONS WHICH CAUSE DECREASED PRESSURES AND THEREFORE TEMPERATURES IN SAID ZONE WHICH COMPRISES IN RESPONSE TO SAID DECREASED PRESSURE PROVIDING A STREAM OF HOT PROPYLENE WHICH IS AT A TEMPERATURE IN THE RANGE OF FROM 150*F. TO 170*F. AND A PRESSURE IN THE RANGE OF FROM 265 P.S.I.A. TO 275 P.S.I.A., PROVIDING A STREAM OF COOL PROPYLENE WHICH IS AT A TEMPERATURE IN THE RANGE OF FROM -45*F. TO -55*F. AND A PRESSURE IN THE RANGE OF FROM 18 P.S.I.A. TO 13 P.S.I.A, MIXING SAID HOT PROPYLENE AND COOL PROPYLENE RESPECTIVELY IN A WEIGHT RATIO OF FROM 2/1 TO 4/1 TO THEREBY FORM A MIXTURE WHICH IS A TEMPERATURE IN THE RANGE OF FROM -45*F. TO -55*F. AND A PRESSURE IN THE RANGE OF FROM 18 P.S.I.A. TO 13 P.S.I.A. AND ADDING THE MIXTURE OF SAID ZONE IN AMOUNTS SUFFICIENT TO RAISE PRESSURE IN SAID ZONE TO THE DESIRED CONSTANT PRESSURE, AND PASSING IMPURE HYDROGEN IN HEAT EXCHANGE WITH SAID COOLING ZONE.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |