KR20080010417A - 액화 천연 가스로부터의 2단계 질소 제거 - Google Patents
액화 천연 가스로부터의 2단계 질소 제거 Download PDFInfo
- Publication number
- KR20080010417A KR20080010417A KR1020077026471A KR20077026471A KR20080010417A KR 20080010417 A KR20080010417 A KR 20080010417A KR 1020077026471 A KR1020077026471 A KR 1020077026471A KR 20077026471 A KR20077026471 A KR 20077026471A KR 20080010417 A KR20080010417 A KR 20080010417A
- Authority
- KR
- South Korea
- Prior art keywords
- nitrogen
- stream
- natural gas
- column
- liquefied natural
- Prior art date
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 320
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 159
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 119
- 230000009977 dual effect Effects 0.000 title description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 95
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 239000003345 natural gas Substances 0.000 claims abstract description 41
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000002737 fuel gas Substances 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 25
- 238000004821 distillation Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 50
- 239000007789 gas Substances 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 36
- 238000004508 fractional distillation Methods 0.000 claims description 27
- 238000010992 reflux Methods 0.000 claims description 27
- 239000002826 coolant Substances 0.000 claims description 23
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004781 supercooling Methods 0.000 claims 1
- 238000005194 fractionation Methods 0.000 abstract description 9
- 239000001307 helium Substances 0.000 description 27
- 229910052734 helium Inorganic materials 0.000 description 27
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 27
- 239000000047 product Substances 0.000 description 22
- 238000009833 condensation Methods 0.000 description 14
- 230000005494 condensation Effects 0.000 description 14
- 238000007872 degassing Methods 0.000 description 12
- 239000000446 fuel Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
-
- 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
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/028—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of noble gases
- F25J3/029—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of noble gases of helium
-
- 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
- F25J1/0012—Primary atmospheric gases, e.g. air
- F25J1/0015—Nitrogen
-
- 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"
- F25J1/0035—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 gas expansion with extraction of work
- F25J1/0037—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 gas expansion with extraction of work of a return stream
-
- 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"
- F25J1/0042—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 liquid expansion with extraction of work
-
- 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
- F25J1/0047—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 an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/0052—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 an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
-
- 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
- F25J1/0047—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 an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/0052—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 an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
- F25J1/0055—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 an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream originating from an incorporated cascade
-
- 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
- F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
- F25J1/007—Primary atmospheric gases, mixtures thereof
- F25J1/0072—Nitrogen
-
- 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
-
- 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
- F25J1/0211—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
- F25J1/0214—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle
-
- 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
- F25J1/0211—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
- F25J1/0214—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle
- F25J1/0215—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle with one SCR cycle
- F25J1/0216—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle with one SCR cycle using a C3 pre-cooling cycle
-
- 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
- F25J1/0211—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
- F25J1/0217—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as at least a three level refrigeration cascade with at least one MCR cycle
- F25J1/0218—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 a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as at least a three level refrigeration cascade with at least one MCR cycle with one or more SCR cycles, e.g. with a C3 pre-cooling cycle
-
- 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
- F25J1/0229—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock
- F25J1/023—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock for the combustion as fuels, i.e. integration with the fuel gas 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
- 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
- F25J1/0235—Heat exchange integration
- F25J1/0237—Heat exchange integration integrating refrigeration provided for liquefaction and purification/treatment of the gas to be liquefied, e.g. heavy hydrocarbon removal from natural gas
- F25J1/0238—Purification or treatment step is integrated within one refrigeration cycle only, i.e. the same or single refrigeration cycle provides feed gas cooling (if present) and overhead gas cooling
-
- 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
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
- F25J1/0262—Details of the cold heat exchange system
- F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
-
- 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
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
- F25J1/0262—Details of the cold heat exchange system
- F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
- F25J1/0265—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer
- F25J1/0267—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer using flash gas as heat sink
-
- 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
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0281—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander
- F25J1/0283—Gas turbine as the prime mechanical driver
-
- 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
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0292—Refrigerant compression by cold or cryogenic suction of the refrigerant 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
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
- F25J3/0209—Natural gas or substitute 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
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0233—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 1 carbon atom or more
-
- 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
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0257—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of nitrogen
-
- 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column 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
- 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
-
- 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/72—Refluxing the column with at least a part of the totally condensed overhead 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
-
- 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
-
- 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
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/04—Recovery of liquid products
-
- 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
- F25J2220/00—Processes or apparatus involving steps for the removal of impurities
- F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
- F25J2220/64—Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
-
- 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
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/30—Dynamic liquid or hydraulic expansion with extraction of work, e.g. single phase or two-phase turbine
-
- 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
- F25J2270/00—Refrigeration techniques used
- F25J2270/04—Internal refrigeration with work-producing gas expansion loop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S62/00—Refrigeration
- Y10S62/927—Natural gas from nitrogen
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
Claims (15)
- 액화 천연 가스 공급물(41)로부터 질소를 제거하는 방법으로서,증류탑(23)에서 액화 천연 가스에 대하여 제1 분별 증류를 행하여 제1 질소-농후 상위 증기 흐름(46)과 질소-함유 하위 액체 흐름(19)을 제공하는 단계;상기 하위 액체 흐름(19)의 적어도 일부분을 과냉각(16) 및 감압(21)하고 상기 하위 액체 흐름의 적어도 일부분에 대하여 제2 분별 증류(25)를 행하여 상기 제1 상위 증기 흐름(46)보다 순도가 낮은 제2 질소-농후 상위 증기 흐름(36)과 정화된 액화 천연 가스 흐름을 제공하는 단계를 포함하고, 상기 증류탑에는 제1 질소-농후 상위 증기 흐름(46) 중 응축된 부분이 환류되어 제2 분별 증류(25)에 열 교환 듀티(duty)을 제공하며, 제2 분별 증류는 플래시 드럼(25)에서 수행되는 것인 질소 제거 방법.
- 제1항에 있어서, 상기 과냉각(16)에 대한 냉각 듀티는 상기 액화 천연 가스 공급물로부터 유래하지 않은 냉각 유체(39)에 의해 제공되는 것인 질소 제거 방법.
- 제1항 또는 제2항에 있어서, 제2 질소-농후 상위 증기 흐름(36)은 가스 터빈용 연료 가스로서 사용되거나, 혹은 연료 가스에 첨가되어, 천연 가스 공급물(41)의 액화와 관련하여 사용되는 일을 제공하는 것인 질소 제거 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 질소-함유 하위 액체 흐름(19)이 모두 플래시 드럼(25)에 공급되는 것인 질소 제거 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 과냉각된 질소-함유 하위 액체 흐름(20)의 일부분(54)만이 플래시 드럼(25)에 공급되고, 나머지 부분(53)은 상기 제1 상위 증기 흐름(46)보다 순도가 낮은 제3 질소-농후 상위 증기 흐름(55)과 제2 정화된 액화 천연 가스 흐름(51)으로 분리하기 위한 제2 플래시 드럼(52)에 공급되는 것인 질소 제거 방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 제1 질소-농후 상위 증기 흐름(46)은 80 mol%를 초과하는 질소 농도를 갖는 것인 질소 제거 방법.
- 제6항에 있어서, 제1 질소-농후 상위 증기 흐름(46)은 90 mol%를 초과하는 질소 농도를 갖는 것인 질소 제거 방법.
- 제7항에 있어서, 제1 질소-농후 상위 증기 흐름(46)은 95 mol%를 초과하는 질소 농도를 갖는 것인 질소 제거 방법.
- 질소-제거 액화 천연 가스 흐름(50)을 마련하는 방법으로서,질소-함유 천연 가스(15)를 액화(16)하여 질소-함유 액화 천연 가스 흐 름(17, 41)을 제공하는 단계와,상기 액화 천연 가스 흐름에 대하여 제1항 내지 제8항 중 어느 한 항에 한정된 질소 제거 방법을 행하는 단계를 포함하는 방법.
- 제9항에 있어서, 질소-함유 천연 가스(15)는 액화 및 과냉각 섹션을 구비하는 나권형 열 교환기(16)에서 액화되고, 질소-함유 액화 천연 가스 흐름은 액화 섹션의 하류에서 인출되며, 증류탑(23)으로부터의 하위 액체 흐름은 상기 과냉각 섹션에서 과냉각되는 것인 방법.
- 제9항 또는 제10항에 있어서, 제2 질소-농후 상위 증기 흐름(36)은 가스 터빈용 연료 가스로서 사용되거나, 혹은 연료 가스에 첨가되어, 천연 가스 공급물(41)의 액화와 관련하여 사용되는 일을 제공하는 것인 방법.
- 제11항에 있어서,액화 및 과냉각 섹션을 구비하는 나권형 열 교환기(16)에 질소-함유 천연 가스 흐름(15)을 공급하는 단계로서, 상기 열 교환기에서 냉각 듀티는 재순환 냉각제 시스템(27-89)에 의해 제공되며, 이 시스템에는 연료 가스로 움직이는 가스 터빈에 의해 일이 공급되는 것인 단계;상기 액화 섹션의 하류에서 액화 가스 흐름(17)을 인출하는 단계;상기 액화 가스 흐름에 대하여 증류탑(23)에서 제1 분별 증류를 행하여, 제1 질소-농후 상위 증기 흐름(46)과 질소-함유 하위 액체 흐름(19)을 제공하는 단계;상기 하위 액체 흐름(19)의 적어도 일부분을 열 교환기(16)의 과냉각 섹션에서 과냉각시켜 이 부분을 감압(21)시키는 단계;상기 감압된 부분에 대하여 플래시 드럼(25)에서 제2 분별 증류를 행하여, 상기 제1 상위 증기 흐름(46)보다 순도가 낮은 제2 질소-농후 상위 증기 흐름(36)과 정화된 액화 천연 가스 흐름(50)을 제공하는 단계;제1 질소-농후 상위 증기 흐름의 일부분을 상기 플래시 드럼에서 응축시켜, 플래시 드럼 내부에 가열 듀티를 제공하고, 응축된 질소-농후 상위 흐름(44)을 생성하는 단계;상기 응축된 질소-농후 상위 흐름의 적어도 일부분(45)을 증류탑(23)에 대한 환류로서 복귀시키는 단계; 및상기 제2 질소-농후 상위 증기 흐름(36)을 적어도 연료 가스의 성분으로서 사용하는 단계를 포함하는 방법.
- 제9항에 있어서의 방법에 의해 질소-제거 액화 천연 가스 흐름을 마련하는 장치로서,질소-함유 천연 가스 공급물(15)을 액화하기 위한 냉각 시스템(16);증류탑(23);플래시 드럼(25);상기 플래시 드럼(25) 내에 마련되는 응축기(24);냉각 유체(39)로부터 냉각 듀티를 받는 열 교환기(16);질소-함유 액화 천연 가스를 냉각 시스템(16)으로부터 증류탑(23)에 공급하기 위한 도관 수단(17, 41);제1 질소-농후 상위 증기 흐름을 증류탑(23)에서 제거하기 위한 도관 수단(46);제1 질소-농후 상위 증기 흐름 중 일부분을 응축기(24)로 이송하기 위한 도관 수단(43);응축된 제1 질소-농후 상위 증기 흐름을 응축기(24)로부터 증류탑(23)으로 환류로서 복귀시키기 위한 도관 수단(44, 45);질소-함유 하위 액체 흐름을 증류탑(23)에서 열 교환기(24)로 이송하기 위한 도관 수단(19);과냉각된 질소-함유 하위 흐름을 감압된 상태로 열교환기에서 플래시 드럼(25)으로 이송하기 위한 도관 수단(20)제2 질소-농후 상위 증기 흐름을 플래시 드럼(25)에서 제거하기 위한 도관 수단(36); 및정화된 액화 천연 가스 흐름을 플래시 드럼에서 제거하기 위한 도관 수단(50)을 포함하는 장치.
- 제13항에 있어서, 천연 가스 공급물(41)의 액화와 관련하여 사용하는 일을 제공하는 가스 터빈과, 제2 질소-농후 상위 증기 흐름을 가스 터빈에 연료 가스 공급물로서 공급하기 위한 도관 수단(36)을 더 포함하는 것인 장치.
- 제13항 또는 제14항에 있어서, 냉각 시스템은 액화 및 과냉각 섹션을 구비하는 나권형 열 교환기(16)를 포함하고, 질소-함유 액화 천연 가스를 증류탑(23)에 공급하기 위한 도관 수단(17, 41)은 질소-함유 액화 천연 가스 흐름을 액화 섹션의 하류에서 상기 열 교환기로부터 인출하며, 열 교환기(16)를 구성하는 상기 과냉각 섹션에서는 증류탑(23)으로부터의 질소-함유 하위 액체 흐름이 과냉각되는 것인 장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05252524A EP1715267A1 (en) | 2005-04-22 | 2005-04-22 | Dual stage nitrogen rejection from liquefied natural gas |
EP52525224.3 | 2005-04-22 | ||
PCT/GB2006/001390 WO2006111721A1 (en) | 2005-04-22 | 2006-04-18 | Dual stage nitrogen rejection from liquefied natural gas |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080010417A true KR20080010417A (ko) | 2008-01-30 |
KR100939515B1 KR100939515B1 (ko) | 2010-02-03 |
Family
ID=34940977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020077026471A KR100939515B1 (ko) | 2005-04-22 | 2006-04-18 | 액화 천연 가스로부터의 2단계 질소 제거 |
Country Status (13)
Country | Link |
---|---|
US (1) | US7520143B2 (ko) |
EP (2) | EP1715267A1 (ko) |
JP (1) | JP4673406B2 (ko) |
KR (1) | KR100939515B1 (ko) |
CN (1) | CN101163934B (ko) |
AU (1) | AU2006238748B2 (ko) |
CA (1) | CA2605545C (ko) |
EG (1) | EG25070A (ko) |
MX (1) | MX2007013033A (ko) |
NO (1) | NO343069B1 (ko) |
RU (1) | RU2355960C1 (ko) |
TW (1) | TWI273207B (ko) |
WO (1) | WO2006111721A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101392894B1 (ko) * | 2012-07-23 | 2014-05-12 | 대우조선해양 주식회사 | 천연가스의 질소 제거시스템 |
KR101392895B1 (ko) * | 2012-07-23 | 2014-05-12 | 대우조선해양 주식회사 | 바이패스부를 구비한 천연가스의 질소 제거시스템 및 방법 |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PE20060219A1 (es) * | 2004-07-12 | 2006-05-03 | Shell Int Research | Tratamiento de gas natural licuado |
NO329177B1 (no) * | 2007-06-22 | 2010-09-06 | Kanfa Aragon As | Fremgangsmåte og system til dannelse av flytende LNG |
FR2936864B1 (fr) * | 2008-10-07 | 2010-11-26 | Technip France | Procede de production de courants d'azote liquide et gazeux, d'un courant gazeux riche en helium et d'un courant d'hydrocarbures deazote et installation associee. |
US20100147024A1 (en) * | 2008-12-12 | 2010-06-17 | Air Products And Chemicals, Inc. | Alternative pre-cooling arrangement |
US9151537B2 (en) | 2008-12-19 | 2015-10-06 | Kanfa Aragon As | Method and system for producing liquefied natural gas (LNG) |
US8522574B2 (en) * | 2008-12-31 | 2013-09-03 | Kellogg Brown & Root Llc | Method for nitrogen rejection and or helium recovery in an LNG liquefaction plant |
US8627681B2 (en) * | 2009-03-04 | 2014-01-14 | Lummus Technology Inc. | Nitrogen removal with iso-pressure open refrigeration natural gas liquids recovery |
DE102009038458A1 (de) * | 2009-08-21 | 2011-02-24 | Linde Ag | Verfahren zum Abtrennen von Stickstoff aus Erdgas |
EP2365265B1 (en) * | 2010-03-03 | 2018-10-31 | General Electric Technology GmbH | Method and installation for separating carbon dioxide from flue gas of combustion plants |
US10113127B2 (en) * | 2010-04-16 | 2018-10-30 | Black & Veatch Holding Company | Process for separating nitrogen from a natural gas stream with nitrogen stripping in the production of liquefied natural gas |
CN103299145B (zh) * | 2010-06-30 | 2015-11-25 | 国际壳牌研究有限公司 | 处理包括甲烷的烃流的方法及其设备 |
EP2597406A1 (en) * | 2011-11-25 | 2013-05-29 | Shell Internationale Research Maatschappij B.V. | Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition |
JP6254614B2 (ja) * | 2013-01-24 | 2017-12-27 | エクソンモービル アップストリーム リサーチ カンパニー | 液化天然ガス生成 |
DE102013013883A1 (de) * | 2013-08-20 | 2015-02-26 | Linde Aktiengesellschaft | Kombinierte Abtrennung von Schwer- und Leichtsiedern aus Erdgas |
US9816754B2 (en) | 2014-04-24 | 2017-11-14 | Air Products And Chemicals, Inc. | Integrated nitrogen removal in the production of liquefied natural gas using dedicated reinjection circuit |
US9945604B2 (en) * | 2014-04-24 | 2018-04-17 | Air Products And Chemicals, Inc. | Integrated nitrogen removal in the production of liquefied natural gas using refrigerated heat pump |
US20150308737A1 (en) | 2014-04-24 | 2015-10-29 | Air Products And Chemicals, Inc. | Integrated Nitrogen Removal in the Production of Liquefied Natural Gas Using Intermediate Feed Gas Separation |
CA2855383C (en) | 2014-06-27 | 2015-06-23 | Rtj Technologies Inc. | Method and arrangement for producing liquefied methane gas (lmg) from various gas sources |
US10443930B2 (en) | 2014-06-30 | 2019-10-15 | Black & Veatch Holding Company | Process and system for removing nitrogen from LNG |
DE102014010103A1 (de) * | 2014-07-08 | 2016-01-14 | Linde Aktiengesellschaft | Verfahren zur LNG-Gewinnung aus N2-reichen Gasen |
DE102015004120A1 (de) * | 2015-03-31 | 2016-10-06 | Linde Aktiengesellschaft | Verfahren zum Abtrennen von Stickstoff aus einer Kohlenwasserstoff-reichen Fraktion |
FR3034427B1 (fr) * | 2015-04-01 | 2020-01-03 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede de desazotation du gaz naturel |
TWI641789B (zh) | 2015-07-10 | 2018-11-21 | 艾克頌美孚上游研究公司 | 使用液化天然氣製造液化氮氣之系統與方法 |
TWI606221B (zh) | 2015-07-15 | 2017-11-21 | 艾克頌美孚上游研究公司 | 一倂移除溫室氣體之液化天然氣的生產系統和方法 |
TWI608206B (zh) | 2015-07-15 | 2017-12-11 | 艾克頌美孚上游研究公司 | 藉由預冷卻天然氣供給流以增加效率的液化天然氣(lng)生產系統 |
US9816752B2 (en) * | 2015-07-22 | 2017-11-14 | Butts Properties, Ltd. | System and method for separating wide variations in methane and nitrogen |
CA2903679C (en) | 2015-09-11 | 2016-08-16 | Charles Tremblay | Method and system to control the methane mass flow rate for the production of liquefied methane gas (lmg) |
EP3390941A1 (en) * | 2015-12-14 | 2018-10-24 | Exxonmobil Upstream Research Company | Method and system for separating nitrogen from liquefied natural gas using liquefied nitrogen |
CN108291767B (zh) | 2015-12-14 | 2021-02-19 | 埃克森美孚上游研究公司 | 在储存液氮的lng运输工具上的天然气液化的方法 |
CN105865145B (zh) * | 2016-04-22 | 2019-08-09 | 晋城华港燃气有限公司 | 一种煤层气液化工艺 |
CN106500460B (zh) * | 2016-11-24 | 2018-10-19 | 中国矿业大学 | 天然气液化过程中氮气脱除并提纯装置及方法 |
US10520250B2 (en) | 2017-02-15 | 2019-12-31 | Butts Properties, Ltd. | System and method for separating natural gas liquid and nitrogen from natural gas streams |
US10663115B2 (en) | 2017-02-24 | 2020-05-26 | Exxonmobil Upstream Research Company | Method of purging a dual purpose LNG/LIN storage tank |
US10982898B2 (en) * | 2018-05-11 | 2021-04-20 | Air Products And Chemicals, Inc. | Modularized LNG separation device and flash gas heat exchanger |
JP7150063B2 (ja) | 2018-06-07 | 2022-10-07 | エクソンモービル アップストリーム リサーチ カンパニー | 高圧圧縮および膨張による天然ガスの前処理および前冷却 |
CA3109351C (en) | 2018-08-14 | 2023-10-10 | Exxonmobil Upstream Research Company | Conserving mixed refrigerant in natural gas liquefaction facilities |
US11221176B2 (en) * | 2018-08-14 | 2022-01-11 | Air Products And Chemicals, Inc. | Natural gas liquefaction with integrated nitrogen removal |
CA3109918C (en) | 2018-08-22 | 2023-05-16 | Exxonmobil Upstream Research Company | Managing make-up gas composition variation for a high pressure expander process |
JP7179155B2 (ja) | 2018-08-22 | 2022-11-28 | エクソンモービル アップストリーム リサーチ カンパニー | 高圧エキスパンダプロセスのための一次ループ始動方法 |
CA3109750A1 (en) | 2018-08-22 | 2020-02-27 | Exxonmobil Upstream Research Company | Heat exchanger configuration for a high pressure expander process and a method of natural gas liquefaction using the same |
WO2020106394A1 (en) | 2018-11-20 | 2020-05-28 | Exxonmobil Upstream Research Company | Poly refrigerated integrated cycle operation using solid-tolerant heat exchangers |
US11215410B2 (en) | 2018-11-20 | 2022-01-04 | Exxonmobil Upstream Research Company | Methods and apparatus for improving multi-plate scraped heat exchangers |
US11668524B2 (en) | 2019-01-30 | 2023-06-06 | Exxonmobil Upstream Research Company | Methods for removal of moisture from LNG refrigerant |
WO2020159671A1 (en) | 2019-01-30 | 2020-08-06 | Exxonmobil Upstream Research Company | Methods for removal of moisture from lng refrigerant |
US20220252342A1 (en) * | 2019-06-25 | 2022-08-11 | Petroliam Nasional Berhad (Petronas) | System and method for the processing of lng |
AU2020324268A1 (en) * | 2019-08-02 | 2022-01-27 | Linde Gmbh | Process and plant for producing liquefied natural gas |
US11465093B2 (en) | 2019-08-19 | 2022-10-11 | Exxonmobil Upstream Research Company | Compliant composite heat exchangers |
US20210063083A1 (en) | 2019-08-29 | 2021-03-04 | Exxonmobil Upstream Research Company | Liquefaction of Production Gas |
JP7326484B2 (ja) | 2019-09-19 | 2023-08-15 | エクソンモービル・テクノロジー・アンド・エンジニアリング・カンパニー | 高圧圧縮及び膨張による天然ガスの前処理及び予冷 |
US11806639B2 (en) | 2019-09-19 | 2023-11-07 | ExxonMobil Technology and Engineering Company | Pretreatment and pre-cooling of natural gas by high pressure compression and expansion |
WO2021055074A1 (en) | 2019-09-20 | 2021-03-25 | Exxonmobil Upstream Research Company | Removal of acid gases from a gas stream, with o2 enrichment for acid gas capture and sequestration |
JP2022548529A (ja) | 2019-09-24 | 2022-11-21 | エクソンモービル アップストリーム リサーチ カンパニー | Lng及び液体窒素のための船舶又は浮遊貯蔵ユニット上の両用極低温タンクのための貨物ストリッピング機能 |
US11378333B2 (en) | 2019-12-13 | 2022-07-05 | Bcck Holding Company | System and method for separating methane and nitrogen with reduced horsepower demands |
US11650009B2 (en) | 2019-12-13 | 2023-05-16 | Bcck Holding Company | System and method for separating methane and nitrogen with reduced horsepower demands |
CN111981768A (zh) * | 2020-08-20 | 2020-11-24 | 中国石油工程建设有限公司 | 一种天然气低温节流提取氦气装置和方法 |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2500118A (en) * | 1945-08-18 | 1950-03-07 | Howell C Cooper | Natural gas liquefaction |
US3205669A (en) * | 1960-08-15 | 1965-09-14 | Phillips Petroleum Co | Recovery of natural gas liquids, helium concentrate, and pure nitrogen |
US3559417A (en) * | 1967-10-12 | 1971-02-02 | Mc Donnell Douglas Corp | Separation of low boiling hydrocarbons and nitrogen by fractionation with product stream heat exchange |
DE1915218B2 (de) * | 1969-03-25 | 1973-03-29 | Linde Ag, 6200 Wiesbaden | Verfahren und vorrichtung zum verfluessigen von erdgas |
JPS5121642B2 (ko) * | 1972-12-27 | 1976-07-03 | ||
US3874184A (en) * | 1973-05-24 | 1975-04-01 | Phillips Petroleum Co | Removing nitrogen from and subsequently liquefying natural gas stream |
JPS5525761A (en) * | 1978-08-16 | 1980-02-23 | Hitachi Ltd | Method of removing nitrogen from natural gas by lowwtemperature processing |
US4415345A (en) | 1982-03-26 | 1983-11-15 | Union Carbide Corporation | Process to separate nitrogen from natural gas |
US4455158A (en) * | 1983-03-21 | 1984-06-19 | Air Products And Chemicals, Inc. | Nitrogen rejection process incorporating a serpentine heat exchanger |
US4504295A (en) | 1983-06-01 | 1985-03-12 | Air Products And Chemicals, Inc. | Nitrogen rejection from natural gas integrated with NGL recovery |
US4541852A (en) * | 1984-02-13 | 1985-09-17 | Air Products And Chemicals, Inc. | Deep flash LNG cycle |
US4710212A (en) * | 1986-09-24 | 1987-12-01 | Union Carbide Corporation | Process to produce high pressure methane gas |
US4701200A (en) * | 1986-09-24 | 1987-10-20 | Union Carbide Corporation | Process to produce helium gas |
US5167125A (en) * | 1991-04-08 | 1992-12-01 | Air Products And Chemicals, Inc. | Recovery of dissolved light gases from a liquid stream |
FR2682964B1 (fr) * | 1991-10-23 | 1994-08-05 | Elf Aquitaine | Procede de deazotation d'un melange liquefie d'hydrocarbures consistant principalement en methane. |
FR2703762B1 (fr) * | 1993-04-09 | 1995-05-24 | Maurice Grenier | Procédé et installation de refroidissement d'un fluide, notamment pour la liquéfaction de gaz naturel. |
US5410885A (en) * | 1993-08-09 | 1995-05-02 | Smolarek; James | Cryogenic rectification system for lower pressure operation |
GB2297825A (en) | 1995-02-03 | 1996-08-14 | Air Prod & Chem | Process to remove nitrogen from natural gas |
GB2298034B (en) * | 1995-02-10 | 1998-06-24 | Air Prod & Chem | Dual column process to remove nitrogen from natural gas |
US5505049A (en) * | 1995-05-09 | 1996-04-09 | The M. W. Kellogg Company | Process for removing nitrogen from LNG |
MY117899A (en) * | 1995-06-23 | 2004-08-30 | Shell Int Research | Method of liquefying and treating a natural gas. |
AU718068B2 (en) * | 1995-10-05 | 2000-04-06 | Bhp Petroleum Pty. Ltd. | Liquefaction process |
FR2772896B1 (fr) * | 1997-12-22 | 2000-01-28 | Inst Francais Du Petrole | Procede de liquefaction d'un gaz notamment un gaz naturel ou air comportant une purge a moyenne pression et son application |
MY114649A (en) * | 1998-10-22 | 2002-11-30 | Exxon Production Research Co | A process for separating a multi-component pressurized feed stream using distillation |
US6070429A (en) | 1999-03-30 | 2000-06-06 | Phillips Petroleum Company | Nitrogen rejection system for liquified natural gas |
US6308531B1 (en) * | 1999-10-12 | 2001-10-30 | Air Products And Chemicals, Inc. | Hybrid cycle for the production of liquefied natural gas |
DE10121339A1 (de) | 2001-05-02 | 2002-11-07 | Linde Ag | Verfahren zum Abtrennen von Stickstoff aus einer Stickstoff-entaltenden Kohlenwasserstoff Fraktion |
FR2826969B1 (fr) * | 2001-07-04 | 2006-12-15 | Technip Cie | Procede de liquefaction et de deazotation de gaz naturel, installation de mise en oeuvre, et gaz obtenus par cette separation |
CN1178038C (zh) * | 2001-08-19 | 2004-12-01 | 中国科学技术大学 | 利用液化天然气冷能的空气分离装置 |
US6743829B2 (en) * | 2002-01-18 | 2004-06-01 | Bp Corporation North America Inc. | Integrated processing of natural gas into liquid products |
US6758060B2 (en) * | 2002-02-15 | 2004-07-06 | Chart Inc. | Separating nitrogen from methane in the production of LNG |
FR2841330B1 (fr) * | 2002-06-21 | 2005-01-28 | Inst Francais Du Petrole | Liquefaction de gaz naturel avec recyclage de gaz naturel |
GB0220791D0 (en) * | 2002-09-06 | 2002-10-16 | Boc Group Plc | Nitrogen rejection method and apparatus |
US6978638B2 (en) * | 2003-05-22 | 2005-12-27 | Air Products And Chemicals, Inc. | Nitrogen rejection from condensed natural gas |
GB0329713D0 (en) * | 2003-12-22 | 2004-01-28 | Bp Exploration Operating | Process |
-
2005
- 2005-04-22 EP EP05252524A patent/EP1715267A1/en not_active Withdrawn
-
2006
- 2006-04-18 AU AU2006238748A patent/AU2006238748B2/en active Active
- 2006-04-18 RU RU2007143296/06A patent/RU2355960C1/ru active
- 2006-04-18 CA CA2605545A patent/CA2605545C/en active Active
- 2006-04-18 MX MX2007013033A patent/MX2007013033A/es not_active Application Discontinuation
- 2006-04-18 WO PCT/GB2006/001390 patent/WO2006111721A1/en active Application Filing
- 2006-04-18 KR KR1020077026471A patent/KR100939515B1/ko active IP Right Grant
- 2006-04-18 CN CN2006800134387A patent/CN101163934B/zh active Active
- 2006-04-18 EP EP06726787.2A patent/EP1872072B1/en active Active
- 2006-04-18 JP JP2008507153A patent/JP4673406B2/ja active Active
- 2006-04-20 TW TW095114139A patent/TWI273207B/zh not_active IP Right Cessation
- 2006-04-21 US US11/409,432 patent/US7520143B2/en active Active
-
2007
- 2007-10-22 EG EGNA2007001142 patent/EG25070A/xx active
- 2007-11-19 NO NO20075947A patent/NO343069B1/no unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101392894B1 (ko) * | 2012-07-23 | 2014-05-12 | 대우조선해양 주식회사 | 천연가스의 질소 제거시스템 |
KR101392895B1 (ko) * | 2012-07-23 | 2014-05-12 | 대우조선해양 주식회사 | 바이패스부를 구비한 천연가스의 질소 제거시스템 및 방법 |
Also Published As
Publication number | Publication date |
---|---|
TW200638013A (en) | 2006-11-01 |
NO343069B1 (no) | 2018-10-22 |
JP4673406B2 (ja) | 2011-04-20 |
CA2605545A1 (en) | 2006-10-26 |
NO20075947L (no) | 2007-11-19 |
CA2605545C (en) | 2010-11-02 |
EP1872072A1 (en) | 2008-01-02 |
JP2008537089A (ja) | 2008-09-11 |
WO2006111721A1 (en) | 2006-10-26 |
EP1872072B1 (en) | 2018-08-01 |
AU2006238748B2 (en) | 2010-04-01 |
CN101163934A (zh) | 2008-04-16 |
MX2007013033A (es) | 2008-01-11 |
EG25070A (en) | 2011-07-27 |
KR100939515B1 (ko) | 2010-02-03 |
AU2006238748A1 (en) | 2006-10-26 |
TWI273207B (en) | 2007-02-11 |
CN101163934B (zh) | 2012-03-14 |
RU2355960C1 (ru) | 2009-05-20 |
US7520143B2 (en) | 2009-04-21 |
US20070245771A1 (en) | 2007-10-25 |
EP1715267A1 (en) | 2006-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100939515B1 (ko) | 액화 천연 가스로부터의 2단계 질소 제거 | |
KR100939053B1 (ko) | 통합형 ngl 회수 및 액화 천연 가스 생산 | |
US6758060B2 (en) | Separating nitrogen from methane in the production of LNG | |
RU2337130C2 (ru) | Отвод азота из конденсированного природного газа | |
US6401486B1 (en) | Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants | |
JP4599362B2 (ja) | 自在nglプロセスおよび方法 | |
US7257966B2 (en) | Internal refrigeration for enhanced NGL recovery | |
US5566554A (en) | Hydrocarbon gas separation process | |
US7237407B2 (en) | Process and plant for the simultaneous production of an liquefiable natural gas and a cut of natural gas liquids | |
US4715873A (en) | Liquefied gases using an air recycle liquefier | |
RU2491487C2 (ru) | Способ сжижения природного газа с улучшенным извлечением пропана | |
US9222724B2 (en) | Natural gas liquefaction method with high-pressure fractionation | |
KR20080008984A (ko) | 액화 천연 가스의 생산에서의 통합 ngl 회수 | |
EA014452B1 (ru) | Способы и установка для извлечения газоконденсатных жидкостей | |
US5017204A (en) | Dephlegmator process for the recovery of helium | |
CA2206649C (en) | Method and apparatus for producing liquid products from air in various proportions | |
US5579655A (en) | Process and apparatus for the liquefaction of hydrogen | |
AU2009313087B2 (en) | Method for removing nitrogen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20121227 Year of fee payment: 4 |
|
FPAY | Annual fee payment |
Payment date: 20131227 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20141230 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20151230 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20161229 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20171228 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20181227 Year of fee payment: 10 |