US3672179A - Gas liquifaction - Google Patents

Gas liquifaction Download PDF

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US3672179A
US3672179A US60877A US3672179DA US3672179A US 3672179 A US3672179 A US 3672179A US 60877 A US60877 A US 60877A US 3672179D A US3672179D A US 3672179DA US 3672179 A US3672179 A US 3672179A
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gas
outlet
heat exchanger
inlet
ranque
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US60877A
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Richard W Foster-Pegg
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Struthers Energy Systems Inc
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Struthers Energy Systems Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0201—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0232—Coupling of the liquefaction unit to other units or processes, so-called integrated processes integration within a pressure letdown station of a high pressure pipeline system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
    • F25B9/04—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect using vortex effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/10—Processes or apparatus using other separation and/or other processing means using combined expansion and separation, e.g. in a vortex tube, "Ranque tube" or a "cyclonic fluid separator", i.e. combination of an isentropic nozzle and a cyclonic separator; Centrifugal separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/06—Splitting of the feed stream, e.g. for treating or cooling in different ways

Definitions

  • Natural gas is frequently expanded from pipeline pressure to a lower pressure for distribution. At the same time, it is often desired to store liquified natural gas for use at periods of high demand. This is sometimes accomplished by absorbing work from the gas as it expands to a lower pressure and thus extracting heat to cool the gas. This system conventionally requires rotating turbo machinery which requires skilled operation, is costly, and is difficult to maintain.
  • the rotating equipment is replaced by a single heat exchanger and a number of static Ranque tubes.
  • a gas at a given temperature expending through these tubes exhausts in two streams, one at a higher temperature and one at a lower temperature.
  • 1 percent or more of a gas may be liquified. If the gas is at a sufficiently high pressure, it may be expanded in series through a number of Ranque tubes with each tube being connected to the cold stream of the tube before it. Since the pressures required for series expansion of natural gas are prohibitive, a heat exhanger is employed with an inlet high pressure side and an outlet low pressure side.
  • FIG. 1 is a schematic diagram of a preferred embodiment of this invention.
  • FIG. 2 is a schematic diagram of another embodiment of this invention using a plurality of heat exchangers.
  • natural gas or the like which is to be cooled by expansion, flows from inlet pipe 1 into heat exchanger 2 having a high inlet pressure side 3 separated from a low pressure exhaust side 4 by a heat conducting wall 5. Progressively cooled gas flowing to the right as shown in side 3 is tapped off the pipes 6-10 to the Ranque tubes 1 1-15.
  • the hot stream from tube 1 1 passes through pipe 16 to the low pressure exhaust or outlet pipe 26.
  • the hot streams from tubes 12-15 pass respectively, through the pipes 17-20 to the low pressure outlet side 4 of heat exchanger 2.
  • the cold streams from the tubes 11-15 pass, respectively, through the pipes 21-25 to the outlet side 4 of heat exchanger 2.
  • Pipes 17-25 lead into the exhaust side 4 of the heat exchanger 2 at suitable locations to progressively cool gas in the inlet side 3.
  • the gases in exhaust side 4 flow to the left as shown counter to the direction of flow of the gases in the inlet side 3.
  • Sufficiently cooled gas is drawn from the end of the inlet side 3 of the heat exchanger 2 through pipe 27 to be partially flashed into liquid 29 in tank 30.
  • Low pressure cooled gases pass from tank 30 through pipe 31 to the exhaust side of heat exchanger 2.
  • natural gas at 150 psig and 70 F. or 530 R. flows from inlet pipe 1 into side 3 to be cooled and withdrawn through pipes 6-10 at temperatures of 496 R., 414 R, 347 R., 293 F., and 246 R., respectively.
  • the hot streams from tubes 11-15 flow through pipes 16-20 at temperatures of 610 R., 510 R., 427 R., 360 R., and 302 R., respectively.
  • the cold streams from tubes 11-15 flow through pipes 21-25 at temperatures of 407 R., 340 R., 285 R., 240 R., and 202 R., respectively.
  • the pipes 17-25 leading gas into the heat exchanger 2 at appropriate locations along the length of side 4 cool gas flowing from side 3 through pipe 27 to 204 R.
  • FIG. 2 shows a modification of this invention in which a gas from pipe 50 at a high pressure is piped in parallel through pipe 51 and the heat exchangers 52-55 to the Ranque tubes 56-60, respectively.
  • Pipes 61-64 lead the cold stream from the tubes 56-59 to the heat exchangers 52-55 respectively.
  • Hot streams from the tubes 56-60 flow through pipes 65-69 to an outlet 70.
  • Warrned gases from heat exchangers 52-55 flow through pipes 71-74 to outlet 70.
  • Gases from the cold stream of tube 60 flow through pipe 75 to be flashed to liquid 76 in tank 77.
  • Gases from tank 77 may be flashed to liquid 76. in tank 77.
  • Gases from tank 77 may pass through pipe 78 to the outlet 70.
  • relatively cold gases in pipes 66-69 and pipe 78 may bepassed to a portion of a heat exchanger to help cool inlet gases and improve the efficiency of this embodiment of the invention.
  • Apparatus for flashing a small percent of a gas into a liquid on expansion of the gas from a higher to a lower pressure comprising, in combination,
  • counterflow heat exchanger means having at least one high pressure inlet cooling side and at least one low pressure outlet heating side, said cold outlet pipes conducting progressively colder gas to the at least one heating side of said heat exchanger means to greatly cool a small portion of the gas in said at least one inlet side, and
  • d. means flashing sufi'iciently cooled gas from said at least one inlet side into a liquid.
  • said heat exchanger means has a single high pressure cooling inlet side, a single low pressure heating side, and a heat conducting wall separating said high and low pressure sides, said Ranque tubes having inlet pipes connected along progressively colder portions of said inlet side of said heat exchanger means, said hot and cold outlet pipes leading to said outlet side opposite higher temperature portions of said inlet side to sufficiently cool a percentage of said gas in said inlet side to be flashed into liquid in said means flashing gas into a liquid.
  • said heat exchanger means comprises a plurality of heat exchangers having inlet cooling sides and outlet heating sides, said inlet sides being connected in parallel to gas at a high pressure, cooled gas from said inlet sides passing to said Ranque-Hilsch tubes for expansion therein, each of said cold outlet pipes leading to a progressively colder heat exchanger, a final one of said heat exchangers having an outlet side connected to a Ranque tube having a cold outlet pipe from which gas is flashed into liquid in said means flashing gas into a liquid, and

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

A gas under pressure enters a single counter-flow heat exchanger haVing a high pressure entrance side and a low pressure exhaust side, the gas from the high pressure side being connected in parallel to a number of Ranque tubes in which the gas expands. The hot and cold streams from the tubes are connected along the length of the low pressure side of the heat exchanger to progressively cool gas in the high pressure side until a small percentage of the gas can be flashed to liquid for storage.

Description

United States Patent Foster-Pegg [4 1 June 27, 1972 [54] GAS LIQUIFACTION 2,683,972 7/1954 Atkinson ..62/5
[72] Inventor: Richard W- Foster-Pegg, Warren, Pa. FOREIGN PATENTS OR APPLICATIONS [731 Assigne= Enemy sysemsi 858,260 12/1952 Germany .Q ..62/5 [22] Filed: Aug. 4, 1970 Primary Examiner-William J. Wye [2]] App! 60877 Attorney-William A. Drucker [30} Foreign Application Priority Data [57] ABSTRACT Aug. 6, 1969 Great Britain ..39,40l/69 A a nder ressure enters a single counter-flow heat exchanger having a high pressure entrance side and a low [52] US. Cl ..62/5 pressure exhaust side, the gas from the high pressure side [51] f" Cl "Fzsb 9/02 being connected in parallel to a number of Ranque tubes in [58] Field of Search ..62/5 which the gas expands The hot and cold streams f the tubes are connected along the length of the low pressure side [56] References and of the heat exchanger to progressively cool gas in the high UNITED STATES PATENTS pressure side until a small percentage of the gas can be flashed to liquid for storage. 1,952,281 3/1934 Ranque ..62/5 2,522,787 9/1950 Hughes ..62/5 3 Claims, 2 Drawing figures P'A'TENTEDJUW 1912 3,572,179
sum 2 BF 2 GAS LIQUIFACTION BACKGROUND OF THE INVENTION Natural gas is frequently expanded from pipeline pressure to a lower pressure for distribution. At the same time, it is often desired to store liquified natural gas for use at periods of high demand. This is sometimes accomplished by absorbing work from the gas as it expands to a lower pressure and thus extracting heat to cool the gas. This system conventionally requires rotating turbo machinery which requires skilled operation, is costly, and is difficult to maintain.
SUMMARY OF THE INVENTION Accordingly to this invention, the rotating equipment is replaced by a single heat exchanger and a number of static Ranque tubes. A gas at a given temperature expending through these tubes exhausts in two streams, one at a higher temperature and one at a lower temperature. Depending on the initial temperature and pressure of the natural gas or other gas being treated, it is indicated that, according to this invention, 1 percent or more of a gas may be liquified. If the gas is at a sufficiently high pressure, it may be expanded in series through a number of Ranque tubes with each tube being connected to the cold stream of the tube before it. Since the pressures required for series expansion of natural gas are prohibitive, a heat exhanger is employed with an inlet high pressure side and an outlet low pressure side. Progressively cooler gases from both the high and low temperature streams of each Ranque tube exhaust at suitable locations along the low pressure outlet side of the heat exchanger to progressively cool counter-flowing gas in the inlet side of the heat exchanger. Progressively colder gases are tapped from the inlet side of the heat exchanger to the Ranque tubes. At the end of the heat exchanger, a quantity of the gas is sufficiently cooled to be flashed to a liquid.
It is possible to replace the single heat exchanger with a number of heat exchangers. A single high pressure feed line would then be connected in parallel to a number of Ranque tubes with a heat exchanger using the cold stream from each tube to cool the inlet stream to the following tube.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a schematic diagram of a preferred embodiment of this invention; and
FIG. 2 is a schematic diagram of another embodiment of this invention using a plurality of heat exchangers.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, natural gas or the like, which is to be cooled by expansion, flows from inlet pipe 1 into heat exchanger 2 having a high inlet pressure side 3 separated from a low pressure exhaust side 4 by a heat conducting wall 5. Progressively cooled gas flowing to the right as shown in side 3 is tapped off the pipes 6-10 to the Ranque tubes 1 1-15.
The hot stream from tube 1 1 passes through pipe 16 to the low pressure exhaust or outlet pipe 26. The hot streams from tubes 12-15 pass respectively, through the pipes 17-20 to the low pressure outlet side 4 of heat exchanger 2. The cold streams from the tubes 11-15 pass, respectively, through the pipes 21-25 to the outlet side 4 of heat exchanger 2. Pipes 17-25 lead into the exhaust side 4 of the heat exchanger 2 at suitable locations to progressively cool gas in the inlet side 3. The gases in exhaust side 4 flow to the left as shown counter to the direction of flow of the gases in the inlet side 3. Sufficiently cooled gas is drawn from the end of the inlet side 3 of the heat exchanger 2 through pipe 27 to be partially flashed into liquid 29 in tank 30. Low pressure cooled gases pass from tank 30 through pipe 31 to the exhaust side of heat exchanger 2.
As one example of this invention natural gas at 150 psig and 70 F. or 530 R. flows from inlet pipe 1 into side 3 to be cooled and withdrawn through pipes 6-10 at temperatures of 496 R., 414 R, 347 R., 293 F., and 246 R., respectively. The hot streams from tubes 11-15 flow through pipes 16-20 at temperatures of 610 R., 510 R., 427 R., 360 R., and 302 R., respectively. The cold streams from tubes 11-15 flow through pipes 21-25 at temperatures of 407 R., 340 R., 285 R., 240 R., and 202 R., respectively. The pipes 17-25 leading gas into the heat exchanger 2 at appropriate locations along the length of side 4 cool gas flowing from side 3 through pipe 27 to 204 R. so that this gas may be flashed into liquid in tank 30. Thegas leaving through pipe 26 is at 16 psig. It is to be noted that pipe 7, which has gas flowing into it at 414 R. is to the right of pipe 21 which introduces a cooling gas at 407 R. into heat exchanger 2 to cool the gasentering pipe 7. Thus the temperature in heat exchanger 2 having counter-flow therein, decreases to the right as shown and the pipes enter and leave it accordingly. About 1 percent of the natural gas treated in this manner may be Iiquified at the given temperatures and pressures.
FIG. 2 shows a modification of this invention in which a gas from pipe 50 at a high pressure is piped in parallel through pipe 51 and the heat exchangers 52-55 to the Ranque tubes 56-60, respectively. Pipes 61-64 lead the cold stream from the tubes 56-59 to the heat exchangers 52-55 respectively. Hot streams from the tubes 56-60 flow through pipes 65-69 to an outlet 70. Warrned gases from heat exchangers 52-55 flow through pipes 71-74 to outlet 70. Gases from the cold stream of tube 60 flow through pipe 75 to be flashed to liquid 76 in tank 77. Gases from tank 77 may be flashed to liquid 76. in tank 77. Gases from tank 77 may pass through pipe 78 to the outlet 70. It is to be noted that relatively cold gases in pipes 66-69 and pipe 78 may bepassed to a portion of a heat exchanger to help cool inlet gases and improve the efficiency of this embodiment of the invention.
While all pipes and heat exchangers are shown as being of uniform size, these would be scaled according to the required flow therethrough and the degree of heat exchange surface required.
What is claimed is:
1. Apparatus for flashing a small percent of a gas into a liquid on expansion of the gas from a higher to a lower pressure, the apparatus comprising, in combination,
a. a number of Ranque tubes connected in parallel to the gas at higher pressure allowing the gas to expand therein,
b. a hot and a cold outlet pipe from each Ranque-Hilsch tube,
c. counterflow heat exchanger means having at least one high pressure inlet cooling side and at least one low pressure outlet heating side, said cold outlet pipes conducting progressively colder gas to the at least one heating side of said heat exchanger means to greatly cool a small portion of the gas in said at least one inlet side, and
d. means flashing sufi'iciently cooled gas from said at least one inlet side into a liquid.
2. The combination according to claim 1 wherein said heat exchanger means has a single high pressure cooling inlet side, a single low pressure heating side, and a heat conducting wall separating said high and low pressure sides, said Ranque tubes having inlet pipes connected along progressively colder portions of said inlet side of said heat exchanger means, said hot and cold outlet pipes leading to said outlet side opposite higher temperature portions of said inlet side to sufficiently cool a percentage of said gas in said inlet side to be flashed into liquid in said means flashing gas into a liquid.
3. The combination according to claim 1 wherein said heat exchanger means comprises a plurality of heat exchangers having inlet cooling sides and outlet heating sides, said inlet sides being connected in parallel to gas at a high pressure, cooled gas from said inlet sides passing to said Ranque-Hilsch tubes for expansion therein, each of said cold outlet pipes leading to a progressively colder heat exchanger, a final one of said heat exchangers having an outlet side connected to a Ranque tube having a cold outlet pipe from which gas is flashed into liquid in said means flashing gas into a liquid, and
with the addition of a common low pressure outlet, said outlet sides of said heat exchangers and said hot outlet pipes from said Ranque tubes being connected to said common low pressure outlet.

Claims (3)

1. Apparatus for flashing a small percent of a gas into a liquid on expansion of the gas from a higher to a lower pressure, the apparatus comprising, in combination, a. a number of Ranque tubes connected in parallel to the gas at higher pressure allowing the gas to expand therein, b. a hot and a cold outlet pipe from each Ranque-Hilsch tube, c. counterflow heat exchanger means having at least one high pressure inlet cooling side and at least one low pressure outlet heating side, said cold outlet pipes conducting progressively colder gas to the at least one heating side of said heat exchanger means to greatly cool a small portion of the gas in said at least one inlet side, anD d. means flashing sufficiently cooled gas from said at least one inlet side into a liquid.
2. The combination according to claim 1 wherein said heat exchanger means has a single high pressure cooling inlet side, a single low pressure heating side, and a heat conducting wall separating said high and low pressure sides, said Ranque tubes having inlet pipes connected along progressively colder portions of said inlet side of said heat exchanger means, said hot and cold outlet pipes leading to said outlet side opposite higher temperature portions of said inlet side to sufficiently cool a percentage of said gas in said inlet side to be flashed into liquid in said means flashing gas into a liquid.
3. The combination according to claim 1 wherein said heat exchanger means comprises a plurality of heat exchangers having inlet cooling sides and outlet heating sides, said inlet sides being connected in parallel to gas at a high pressure, cooled gas from said inlet sides passing to said Ranque-Hilsch tubes for expansion therein, each of said cold outlet pipes leading to a progressively colder heat exchanger, a final one of said heat exchangers having an outlet side connected to a Ranque tube having a cold outlet pipe from which gas is flashed into liquid in said means flashing gas into a liquid, and with the addition of a common low pressure outlet, said outlet sides of said heat exchangers and said hot outlet pipes from said Ranque tubes being connected to said common low pressure outlet.
US60877A 1969-08-06 1970-08-04 Gas liquifaction Expired - Lifetime US3672179A (en)

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GB39401/69A GB1268069A (en) 1969-08-06 1969-08-06 Gas liquefaction apparatus

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3771869A1 (en) * 2019-07-29 2021-02-03 Ontras Gastransport GmbH Gas discharge system comprising at least one vortex tube
EP3964780A1 (en) * 2020-09-08 2022-03-09 Ontras Gastransport GmbH Gas discharge system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2488758C1 (en) * 2012-03-22 2013-07-27 Александр Николаевич Лазарев Method for filling of reserve storage facilities with liquefied natural gas
DE102019121925B4 (en) * 2019-08-14 2023-02-09 Ontras Gastransport Gmbh Gas expansion plant with LNG generation plant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1952281A (en) * 1931-12-12 1934-03-27 Giration Des Fluides Sarl Method and apparatus for obtaining from alpha fluid under pressure two currents of fluids at different temperatures
US2522787A (en) * 1948-06-11 1950-09-19 Phillips Petroleum Co Method of and apparatus for liquefying gases
DE858260C (en) * 1951-08-24 1952-12-04 Andreas Hofer Hochdruck Appbau Process for improving and applying the vortex tube effect
US2683972A (en) * 1951-10-30 1954-07-20 Phillips Petroleum Co Recovery of natural gas condensate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1952281A (en) * 1931-12-12 1934-03-27 Giration Des Fluides Sarl Method and apparatus for obtaining from alpha fluid under pressure two currents of fluids at different temperatures
US2522787A (en) * 1948-06-11 1950-09-19 Phillips Petroleum Co Method of and apparatus for liquefying gases
DE858260C (en) * 1951-08-24 1952-12-04 Andreas Hofer Hochdruck Appbau Process for improving and applying the vortex tube effect
US2683972A (en) * 1951-10-30 1954-07-20 Phillips Petroleum Co Recovery of natural gas condensate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3771869A1 (en) * 2019-07-29 2021-02-03 Ontras Gastransport GmbH Gas discharge system comprising at least one vortex tube
EP3964780A1 (en) * 2020-09-08 2022-03-09 Ontras Gastransport GmbH Gas discharge system

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GB1268069A (en) 1972-03-22
CA920503A (en) 1973-02-06

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