WO2017081375A1 - Procédé de liquéfaction de gaz naturel à l'aide d'un circuit de réfrigération en cycle fermé - Google Patents
Procédé de liquéfaction de gaz naturel à l'aide d'un circuit de réfrigération en cycle fermé Download PDFInfo
- Publication number
- WO2017081375A1 WO2017081375A1 PCT/FR2016/052033 FR2016052033W WO2017081375A1 WO 2017081375 A1 WO2017081375 A1 WO 2017081375A1 FR 2016052033 W FR2016052033 W FR 2016052033W WO 2017081375 A1 WO2017081375 A1 WO 2017081375A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stream
- heat exchanger
- temperature
- refrigerant
- liquid
- Prior art date
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000003345 natural gas Substances 0.000 title claims abstract description 23
- 238000005057 refrigeration Methods 0.000 title claims description 9
- 239000003507 refrigerant Substances 0.000 claims abstract description 83
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 11
- 229930195733 hydrocarbon Natural products 0.000 claims description 18
- 150000002430 hydrocarbons Chemical class 0.000 claims description 18
- 239000004215 Carbon black (E152) Substances 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- 239000001273 butane Substances 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 239000012071 phase Substances 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000003949 liquefied natural gas Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- LGPMBEHDKBYMNU-UHFFFAOYSA-N ethane;ethene Chemical group CC.C=C LGPMBEHDKBYMNU-UHFFFAOYSA-N 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- -1 nitrogen or methane Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- 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
- F25J1/0047—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
- F25J1/02—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
- F25J1/0212—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 single flow MCR cycle
Definitions
- the liquefied natural gas obtained can be depressurized by means of a Joule-Thomson valve or by means of a turbine.
- other intermediate treatment steps between the gas / liquid separation and the cooling can be carried out.
- the hydrocarbon stream to be liquefied is usually a stream of natural gas obtained from natural gas or oil reservoirs.
- the natural gas stream can also be obtained from another source, also including a synthetic source such as a Fischer-Tropsch process.
- natural gas refers to any composition containing hydrocarbons including at least methane.
- the separator may be any unit, column or arrangement adapted to separate the mixed refrigerant into a vapor refrigerant stream and a liquid refrigerant stream. Such separators are known in the state of the art and are not detailed here.
- a heat exchanger 2 (typically having a separation of a part of at least one of the following constituents: water, CO2, methanol, sulfur compounds) is introduced into a heat exchanger 2 in order to be liquefied.
- the figure therefore shows a liquefaction process of a feed stream 1.
- the feed stream 1 may be a pretreated natural gas stream, wherein one or more substances, such as sulfur, carbon dioxide, water, are reduced, so as to be compatible with cryogenic temperatures, such as this is known in the state of the art.
- the feed stream 1 may have undergone one or more pre-cooling steps as known in the state of the art.
- One or more pre-cooling stage (s) may include one or more refrigeration circuits.
- the feed stream 1 enters the heat exchanger 2 via a feed inlet 3 and passes through the heat exchanger via the line 4, then is extracted from the exchanger at the outlet 5 to provide a flow
- This liquefied stream 6 is preferably fully liquefied and even subcooled, and may be further processed as discussed below.
- the temperature may be from about -150 ° C to -160 ° C.
- the liquefaction of the feed stream 1 is carried out by means of a refrigerant circuit 7.
- the refrigerant circuit 7 circulates a mixed refrigerant, preferably being selected from the group consisting of nitrogen, methane, ethane ethylene, propane, propylene, butane, pentane, etc.
- the composition of the mixed refrigerant may vary depending on the conditions and the desired parameters for the heat exchanger 2, as known in the state of the art.
- the stream 31 then passes through the inlet 32 again into the heat exchanger 2 and vaporizes completely to the outlet 33 of the heat exchanger.
- a gaseous refrigerant stream flows in the refrigeration circuit 7 downstream of the heat exchanger outlet 33 at ambient temperature (i.e., the temperature measured in the space where the device for implementing the refrigerant is placed.
- the process of the present invention is, for example, between -20 ° C. and 45 ° C.
- the refrigerant stream is compressed using a compressor 36.
- the compression process is known in the state of the art and the compressor 36 is for example a compressor with at least two adiabatic sections A and B thus comprising at least two coolers 37 and 38.
- the coolant stream is cooled by means of a cooler 37 and is then partially condensed and forms a two-phase refrigerant stream 39.
- the pressure at the outlet of the section A of the compressor 36 is of the order of 18 bara and the temperature of the order of 130 ° C.
- the temperature at the outlet of the cooler 37 is of the order of 25 ° C.
- the gaseous refrigerant stream 41 is compressed in the section B of the compressor. Typically, the pressure at the outlet of this section B is of the order of 50 bara. After this compression, the cooling stream is partially condensed using the cooler 38 and forms a two-phase refrigerant stream 42. Typically the temperature is at room temperature.
- the coolant stream 42 is sent to a phase separator 43 separating said coolant stream into a gas stream 8 and a second liquid stream 16.
- Said second liquid refrigerant stream 16 consists of elements that are less heavy than those contained in the liquid 25 but heavier than those contained in the gas stream 8.
- This liquid refrigerant stream 16 then follows the path described above from the inlet 17
- the gaseous refrigerant stream 8 then follows the path described above from the inlet 9 of the heat exchanger 2.
- This gaseous refrigerant stream 8 contains the lightest elements of the refrigerant stream of the heat exchanger.
- refrigeration circuit 7, that is to say, typically nitrogen and methane.
- temperature substantially equal to another temperature means temperature equal to plus or minus 5 ° C.
- liquid refrigerant currents are not subcooled more than what is necessary (typically characterized by the correspondence between the heat exchanger withdrawal temperature at points 20 and 28) and the composition of the vaporized refrigerant stream (having the lighter components) at the coldest outlet of the main heat exchanger is improved.
Landscapes
- 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)
- Separation By Low-Temperature Treatments (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1560732 | 2015-11-10 | ||
| FR1560732A FR3043452B1 (fr) | 2015-11-10 | 2015-11-10 | Procede de liquefaction de gaz naturel a l'aide d'un circuit de refrigeration en cycle ferme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017081375A1 true WO2017081375A1 (fr) | 2017-05-18 |
Family
ID=55300545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2016/052033 WO2017081375A1 (fr) | 2015-11-10 | 2016-08-04 | Procédé de liquéfaction de gaz naturel à l'aide d'un circuit de réfrigération en cycle fermé |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR3043452B1 (ru) |
| RU (1) | RU2684060C2 (ru) |
| WO (1) | WO2017081375A1 (ru) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779275A (zh) * | 2019-10-10 | 2020-02-11 | 陕西延长石油天然气有限责任公司 | 一种提高天然气液化装置能效的方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2280042A1 (fr) * | 1974-05-31 | 1976-02-20 | Teal Technip Liquefaction Gaz | Procede et installation pour le refroidissement d'un melange gazeux |
| DE19722490C1 (de) * | 1997-05-28 | 1998-07-02 | Linde Ag | Verfahren zum Verflüssigen eines Kohlenwasserstoff-reichen Stromes |
| US5943881A (en) * | 1996-07-12 | 1999-08-31 | Gaz De France (G.D.F.) Service National | Cooling process and installation, in particular for the liquefaction of natural gas |
| EP0990108A1 (en) * | 1997-06-12 | 2000-04-05 | Costain Oil, Gas & Process Limited | Two staged refrigeration cycle using a multiconstituant refrigerant |
| US20140260415A1 (en) * | 2013-03-15 | 2014-09-18 | Chart Energy & Chemicals, Inc. | Mixed refrigerant system and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2467268C2 (ru) * | 2007-01-25 | 2012-11-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Способ и устройство для охлаждения углеводородного потока |
-
2015
- 2015-11-10 FR FR1560732A patent/FR3043452B1/fr active Active
-
2016
- 2016-08-04 WO PCT/FR2016/052033 patent/WO2017081375A1/fr active Application Filing
- 2016-08-15 RU RU2016133443A patent/RU2684060C2/ru active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2280042A1 (fr) * | 1974-05-31 | 1976-02-20 | Teal Technip Liquefaction Gaz | Procede et installation pour le refroidissement d'un melange gazeux |
| US5943881A (en) * | 1996-07-12 | 1999-08-31 | Gaz De France (G.D.F.) Service National | Cooling process and installation, in particular for the liquefaction of natural gas |
| DE19722490C1 (de) * | 1997-05-28 | 1998-07-02 | Linde Ag | Verfahren zum Verflüssigen eines Kohlenwasserstoff-reichen Stromes |
| EP0990108A1 (en) * | 1997-06-12 | 2000-04-05 | Costain Oil, Gas & Process Limited | Two staged refrigeration cycle using a multiconstituant refrigerant |
| US20140260415A1 (en) * | 2013-03-15 | 2014-09-18 | Chart Energy & Chemicals, Inc. | Mixed refrigerant system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779275A (zh) * | 2019-10-10 | 2020-02-11 | 陕西延长石油天然气有限责任公司 | 一种提高天然气液化装置能效的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2016133443A (ru) | 2018-02-16 |
| FR3043452B1 (fr) | 2019-12-20 |
| RU2684060C2 (ru) | 2019-04-03 |
| RU2016133443A3 (ru) | 2018-10-22 |
| FR3043452A1 (fr) | 2017-05-12 |
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