JP2006523296A - 低温天然ガス加工プラントにおけるlngの生産 - Google Patents
低温天然ガス加工プラントにおけるlngの生産 Download PDFInfo
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- JP2006523296A JP2006523296A JP2006508671A JP2006508671A JP2006523296A JP 2006523296 A JP2006523296 A JP 2006523296A JP 2006508671 A JP2006508671 A JP 2006508671A JP 2006508671 A JP2006508671 A JP 2006508671A JP 2006523296 A JP2006523296 A JP 2006523296A
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- cooling
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 270
- 239000003345 natural gas Substances 0.000 title claims abstract description 112
- 238000012545 processing Methods 0.000 title claims abstract description 37
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- 238000000034 method Methods 0.000 claims abstract description 114
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- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 38
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 38
- 238000004821 distillation Methods 0.000 claims abstract description 27
- 239000012141 concentrate Substances 0.000 claims abstract description 22
- 239000004215 Carbon black (E152) Substances 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims 24
- 238000010438 heat treatment Methods 0.000 claims 4
- 238000011084 recovery Methods 0.000 abstract description 61
- 239000007789 gas Substances 0.000 description 121
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 56
- 239000001569 carbon dioxide Substances 0.000 description 28
- 229910002092 carbon dioxide Inorganic materials 0.000 description 28
- 239000000047 product Substances 0.000 description 20
- 239000002737 fuel gas Substances 0.000 description 17
- 239000003507 refrigerant Substances 0.000 description 17
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 14
- 238000003860 storage Methods 0.000 description 14
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- 150000001875 compounds Chemical class 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
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- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
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- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
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- OKBVVJOGVLARMR-QSWIMTSFSA-N cefixime Chemical compound S1C(N)=NC(C(=N\OCC(O)=O)\C(=O)N[C@@H]2C(N3C(=C(C=C)CS[C@@H]32)C(O)=O)=O)=C1 OKBVVJOGVLARMR-QSWIMTSFSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- 150000002431 hydrogen Chemical class 0.000 description 1
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- 239000001282 iso-butane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/60—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being hydrocarbons or a mixture of hydrocarbons
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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
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
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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
- 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
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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
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
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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
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/90—Processes or apparatus involving steps for recycling of process streams the recycled stream being boil-off gas from storage
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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
- F25J2260/00—Coupling of processes or apparatus to other units; Integrated schemes
- F25J2260/20—Integration in an installation for liquefying or solidifying a fluid stream
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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
- F25J2270/00—Refrigeration techniques used
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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
- F25J2270/00—Refrigeration techniques used
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Abstract
Description
本発明は、メタン純度が高い液化天然ガス(LNG)を生産するための、天然ガスを加工する方法に関する。特に、本発明は、低温方法を用いた、天然ガス液(NGL)および/または液化石油ガス(LPG)を回収する天然ガス加工プラントに統合することによる、LNGの共生産についてよく研究されている。
図1は、米国特許第4,278,457号による従来技術の低温天然ガス加工プラントのフロー図である;
図2は、従来技術の方法に従ってLNGの共生産に適応させた場合の、前記低温天然ガス加工プラントのフロー図である;
図3は、米国特許第5,615,561号による従来技術の方法を用いてLNGの共生産に適応させた場合の前記低温天然ガス加工プラントのフロー図である;
図4は、我々の同時係属中の米国特許出願第09/839,907号の実施形態による、LNGの共生産に適応させた場合の前記低温天然ガス加工プラントのフロー図である;
図5は、本発明に係るLNGの共生産に適応させた場合の前記低温天然ガス加工プラントのフロー図である;
図6は、前記低温天然ガス加工プラントからLNGを共生産するために本発明を適用する代わりの手段を説明するフロー図である;および、
図7は、前記低温天然ガス加工プラントからのLNGの共生産に本発明を適用するその他の代わりの手段を説明するフロー図である。
以下、図1を参照しながら、我々は、比較のためにLNGを共生産しないNGL回収プラントの例から説明する。この、米国特許第4,278,457号による従来技術のNGL回収プラントのシミュレーションにおいて、入口ガスは、90°F[32℃]、および、740psia[5,102kPa(a)]で、プラントに入る(ストリーム31として)。入口ガスに、産物ストリームが規格から外れる原因となり得る二酸化炭素および/または硫黄化合物が所定濃度で含まれる場合、これら化合物は、フィードガスの適切な前処理(説明せず)によって除去される。加えて、フィードストリームは通常、低温条件下でハイドレート(氷)の形成を防ぐために脱水される。この目的のために、典型的には、固形の乾燥剤が用いられている。
図5は、本発明に係る方法のフロー図を説明する。図5で示される方法で考察された入口ガス組成および条件は、図1〜4のものと同一である。従って、図5の方法を、図2、3および4の方法と比較して、本発明の利点を説明することができる。
当業者であれば、本発明は、全てのタイプのNGL回収プラントとの使用に適応させることができ、LNGの共生産が可能になることが理解できると思われる。上記の実施例は全て、本発明と従来技術との比較を容易にするために、本発明と、米国特許第4,278,457号で開示された方法を用いたNGL回収プラントとの併用を示した。しかしながら、本発明は、一般的に、−50°F[−46℃]またはそれ未満の温度の蒸留蒸気ストリームを生産するあらゆるNGL回収プロセスとの併用に関して適用可能である。このようなNGL回収プロセスの例は、米国特許第号3,292,380号;4,140,504号;4,157,904号;4,171,964号;4,185,978号;4,251,249号;4,278,457号;4,519,824号;4,617,039号;4,687,499号;4,689,063号;4,690,702号;4,854,955号;4,869,740号;4,889,545号;5,275,005号;5,555,748号;5,568,737号;5,771,712号;5,799,507号;5,881,569号;5,890,378号;5,983,664号;6,182,469号;再発行の米国特許第33,408号;および、同時係属中の出願第09/677,220号に記載され、説明されており、これらの完全な開示は、この参照によりその全体は開示に含まれる。さらに、本発明は、NGL産物中のC3成分および重質炭化水素成分のみが回収されるように設計された(すなわち、特にC2成分の回収は行われない)NGL回収プラントとの使用、または、NGL産物中のC2成分および重質炭化水素成分を回収するように設計されているが、C2成分が残留ガスに入らないように運転され、NGL産物中のC3成分および重質炭化水素成分のみが回収される(すなわち、エタンを排除する運転方式)NGL回収プラントとの使用に適用可能である。
Claims (8)
- メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する方法であって、
(a)前記天然ガスストリームを、天然ガス液を回収する低温天然ガス加工プラントから抜き出し;
(b)前記天然ガスストリームの少なくともその一部を濃縮し、圧力下で冷却し、濃縮ストリームを形成し;
(c)蒸留ストリームを前記プラントから抜き出し、前記天然ガスストリームの冷却の少なくとも一部を供給し;
(d)前記濃縮ストリームの第一の部分を抜き出し、中圧に膨張させ、前記天然ガスストリームとの熱交換に送り、前記冷却の少なくとも一部を供給し、その後、前記第一の部分を前記プラントに送り;そして、
(e)前記濃縮ストリームの残りの部分をより低い圧力に膨張させ、液化した前記天然ガスストリームを形成する、
前記方法。 - メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する方法であって、
(a)前記天然ガスストリームを、天然ガス液を回収する低温天然ガス加工プラントから抜き出し;
(b)前記天然ガスストリームを部分的に濃縮させるのに十分な圧力の下で、前記天然ガスストリームを冷却し;
(c)蒸留ストリームを前記プラントから抜き出し、前記天然ガスストリームの冷却の少なくとも一部を供給し;
(d)前記部分的に濃縮された天然ガスストリームを液体ストリームと蒸気ストリームとに分離し、その後、前記液体ストリームを前記プラントに送り;
(e)前記蒸気ストリームの少なくとも一部を濃縮させ、圧力下でさらに冷却し、濃縮ストリームを形成し;
(f)前記濃縮ストリームの第一の部分を抜き出し、中圧に膨張させ、膨張させた前記蒸気ストリームとの熱交換に送り、前記冷却の少なくとも一部を供給し、その後、前記第一の部分を前記プラントに送り;そして、
(g)前記濃縮ストリームの残りの部分をより低い圧力に膨張させ、液化した前記天然ガスストリームを形成する、
前記方法。 - メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する方法であって、
(a)前記天然ガスストリームを、天然ガス液を回収する低温天然ガス加工プラントから抜き出し;
(b)前記天然ガスストリームを部分的に濃縮させるのに十分な圧力の下で、前記天然ガスストリームを冷却し;
(c)蒸留ストリームを前記プラントから抜き出し、前記天然ガスストリームの冷却の少なくとも一部を供給し;
(d)前記部分的に濃縮された天然ガスストリームを液体ストリームと蒸気ストリームとに分離し、その後、前記液体ストリームを前記プラントに送り;
(e)前記蒸気ストリームを中圧に膨張させ、前記中圧でさらに冷却し、少なくともその一部を濃縮し、濃縮ストリームを形成し;
(f)前記濃縮ストリームの第一の部分を抜き出し、中圧に膨張させ、膨張させた前記蒸気ストリームとの熱交換に送り、前記冷却の少なくとも一部を供給し、その後、前記第一の部分を前記プラントに送り;そして、
(g)前記濃縮ストリームの残りの部分をより低い圧力に膨張させ、液化した前記天然ガスストリームを形成する、
前記方法。 - メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する方法であって、
(a)前記天然ガスストリームを、天然ガス液を回収する低温天然ガス加工プラントから抜き出し;
(b)前記天然ガスストリームを圧力下で冷却し;
(c)蒸留ストリームを前記プラントから抜き出し、前記天然ガスストリームの冷却の少なくとも一部を供給し;
(d)冷却された前記天然ガスストリームを中圧に膨張させ、前記中圧でさらに冷却し、少なくともその一部を濃縮し、濃縮ストリームを形成し;
(e)前記濃縮ストリームの第一の部分を抜き出し、中圧に膨張させ、膨張させた前記天然ガスストリームとの熱交換に送り、前記冷却の少なくとも一部を供給し、その後、前記第一の部分を前記プラントに送り;そして、
(f)前記濃縮ストリームの残りの部分をより低い圧力に膨張させ、液化した前記天然ガスストリームを形成する、
前記方法。 - メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する装置であって:
(a)前記天然ガスストリームを抜き出すための、天然ガス液を回収する低温天然ガス加工プラントに連結された第一の抜き出し手段;
(b)前記天然ガスストリームを受け入れ、その少なくとも一部を濃縮し、圧力下で冷却し、濃縮ストリームを形成するための、前記第一の抜き出し手段に連結された熱交換手段;
(c)蒸留ストリームを抜き出すための、前記プラントに連結された第二の抜き出し手段、ここで、前記第二の抜き出し手段は、さらに前記熱交換手段に連結され、前記蒸留ストリームを加熱し、それにより前記天然ガスストリームの冷却の少なくとも一部を供給する;
(d)前記濃縮ストリームの第一の部分を抜き出すための、前記熱交換手段に連結された第三の抜き出し手段;
(e)前記第一の部分を受け入れ、中圧に膨張させるための、前記第三の抜き出し手段に連結された第一の膨張手段、ここで、前記第一の膨張手段はさらに、膨張させた前記第一の部分を供給するための前記熱交換手段に連結され、そこで、膨張させた前記第一の部分を加熱することによって前記冷却の少なくとも一部を供給し、その後、加熱し膨張させた前記第一の部分を、前記プラントに送る;および、
(f)前記濃縮ストリームの残りの部分を受け入れ、より低い圧力に膨張させ、液化した前記天然ガスストリームを形成するための、前記熱交換手段に連結された第二の膨張手段、
で構成される前記装置。 - メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する装置であって:
(a)前記天然ガスストリームを抜き出すための、天然ガス液を回収する低温天然ガス加工プラントに連結された第一の抜き出し手段;
(b)前記天然ガスストリームを受け入れ、前記天然ガスストリームを部分的に濃縮させるのに十分な圧力の下で前記天然ガスストリームを冷却するための、前記第一の抜き出し手段に連結された熱交換手段;
(c)蒸留ストリームを抜き出すための、前記プラントに連結された第二の抜き出し手段、ここで、前記第二の抜き出し手段は、さらに前記熱交換手段に連結され、前記蒸留ストリームを加熱し、それにより前記天然ガスストリームの冷却の少なくとも一部を供給する;
(d)前記部分的に濃縮された天然ガスストリームを受け入れ、それを蒸気ストリームと液体ストリームとに分離し、その後、前記液体ストリームを前記プラントに送るための、前記熱交換手段に連結された分離手段;
(e)前記蒸気ストリームを供給するための、前記熱交換手段にさらに連結された前記分離手段、ここで、前記熱交換手段は、前記蒸気ストリームの少なくとも一部を濃縮させ、濃縮ストリームを形成できるような圧力で、前記蒸気ストリームをさらに冷却するように調節される;
(f)前記濃縮ストリームの第一の部分を抜き出すための、前記熱交換手段に連結された第三の抜き出し手段;
(g)前記第一の部分を受け入れ、中圧に膨張させるための、前記第三の抜き出し手段に連結された第一の膨張手段、ここで、前記第一の膨張手段はさらに、膨張させた前記第一の部分を供給するための前記熱交換手段に連結され、そこで、膨張させた前記第一の部分を加熱することによって前記冷却の少なくとも一部を供給し、その後、加熱し膨張させた前記第一の部分を、前記プラントに送る;および、
(h)前記濃縮ストリームの残りの部分を受け入れ、より低い圧力に膨張させ、液化した前記天然ガスストリームを形成するための、前記熱交換手段に連結された第二の膨張手段、
で構成される前記装置。 - メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する装置であって:
(a)前記天然ガスストリームを抜き出すための、天然ガス液を回収する低温天然ガス加工プラントに連結された第一の抜き出し手段;
(b)前記天然ガスストリームを受け入れ、前記天然ガスストリームを部分的に濃縮させるのに十分な圧力の下で前記天然ガスストリームを冷却するための、前記第一の抜き出し手段に連結された熱交換手段;
(c)蒸留ストリームを抜き出すための、前記プラントに連結された第二の抜き出し手段、ここで、前記第二の抜き出し手段は、さらに前記熱交換手段に連結され、前記蒸留ストリームを加熱し、それにより前記天然ガスストリームの冷却の少なくとも一部を供給する;
(d)前記部分的に濃縮された天然ガスストリームを受け入れ、それを蒸気ストリームと液体ストリームとに分離し、その後、前記液体ストリームを前記プラントに送るための、前記熱交換手段に連結された分離手段;
(e)前記蒸気ストリームを受け入れ、中圧に膨張させるための、前記分離手段に連結された第一の膨張手段、ここで、前記第一の膨張手段はさらに、膨張させた前記蒸気ストリームを供給するための前記熱交換手段に連結され、前記熱交換手段は、前記中圧で、膨張させた前記蒸気ストリームをさらに冷却し、少なくともその一部を濃縮し、濃縮ストリームを形成するように調節される;
(f)前記濃縮ストリームの第一の部分を抜き出すための、前記熱交換手段に連結された第三の抜き出し手段;
(g)前記第一の部分を受け入れ、中圧に膨張させるための、前記第三の抜き出し手段に連結された第二の膨張手段、ここで、前記第二の膨張手段はさらに、膨張させた前記第一の部分を供給するための前記熱交換手段に連結され、そこで、膨張させた前記第一の部分を加熱することによって前記冷却の少なくとも一部を供給し、その後、加熱し膨張させた前記第一の部分を、前記プラントに送る;および、
(h)前記濃縮ストリームの残りの部分を受け入れ、より低い圧力に膨張させ、液化した前記天然ガスストリームを形成するための、前記熱交換手段に連結された第三の膨張手段、
で構成される前記装置。 - メタンおよび重質炭化水素成分を含む天然ガスストリームを液化する装置であって:
(a)前記天然ガスストリームを抜き出すための、天然ガス液を回収する低温天然ガス加工プラントに連結された第一の抜き出し手段;
(b)前記天然ガスストリームを受け入れ、圧力下で冷却するための、前記第一の抜き出し手段に連結された熱交換手段;
(c)蒸留ストリームを抜き出すための、前記プラントに連結された第二の抜き出し手段、ここで、前記第二の抜き出し手段は、さらに前記熱交換手段に連結され、前記蒸留ストリームを加熱し、それにより前記天然ガスストリームの冷却の少なくとも一部を供給する;
(d)冷却された前記天然ガスストリームを受け入れ、中圧に膨張させるための、前記熱交換手段に連結された第一の膨張手段、ここで、前記第一の膨張手段はさらに、膨張させた前記天然ガスストリームを供給するための前記熱交換手段に連結され、前記熱交換手段は、前記中圧で、膨張させた前記天然ガスストリームをさらに冷却し、少なくともその一部を濃縮し、濃縮ストリームを形成するように調節される;
(e)前記濃縮ストリームの第一の部分を抜き出すための、前記熱交換手段に連結された第三の抜き出し手段;
(f)前記第一の部分を受け入れ、中圧に膨張させるための、前記第三の抜き出し手段に連結された第二の膨張手段、ここで、前記第二の膨張手段はさらに、膨張させた前記第一の部分を供給するための前記熱交換手段に連結され、そこで、膨張させた前記第一の部分を加熱することによって前記冷却の少なくとも一部を供給し、その後、加熱し膨張させた前記第一の部分を、前記プラントに送る;および、
(g)前記濃縮ストリームの残りの部分を受け入れ、より低い圧力に膨張させ、液化した前記天然ガスストリームを形成するための、前記熱交換手段に連結された第三の膨張手段、
で構成される前記装置。
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US10/384,038 US6889523B2 (en) | 2003-03-07 | 2003-03-07 | LNG production in cryogenic natural gas processing plants |
PCT/US2004/003330 WO2004081151A2 (en) | 2003-03-07 | 2004-02-06 | Lng production in cryogenic natural gas processing plants |
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- 2004-02-06 MX MXPA05009293A patent/MXPA05009293A/es active IP Right Grant
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JP2012141128A (ja) * | 2005-07-12 | 2012-07-26 | Conocophillips Co | 液体復元及び生成の汎用性を拡張する統合nglを有するlng設備 |
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JP2013527414A (ja) * | 2010-03-31 | 2013-06-27 | オートロフ・エンジニアーズ・リミテッド | 炭化水素ガス処理 |
KR101714101B1 (ko) | 2010-03-31 | 2017-03-08 | 오르트로프 엔지니어스, 리미티드 | 탄화수소 가스 처리 방법 |
JP2011236378A (ja) * | 2010-05-13 | 2011-11-24 | Air Water Inc | 自動車用液化天然ガスおよびその製法 |
WO2019193740A1 (ja) * | 2018-04-06 | 2019-10-10 | 日揮株式会社 | 天然ガス処理方法、及び天然ガス処理装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2004081151A2 (en) | 2004-09-23 |
PE20041074A1 (es) | 2005-01-22 |
EP1606371A2 (en) | 2005-12-21 |
US6889523B2 (en) | 2005-05-10 |
MXPA05009293A (es) | 2006-03-21 |
AR043417A1 (es) | 2005-07-27 |
CA2516785C (en) | 2010-05-11 |
NO20054262D0 (no) | 2005-09-15 |
CN1759286A (zh) | 2006-04-12 |
NZ541904A (en) | 2007-09-28 |
CA2516785A1 (en) | 2004-09-23 |
NO20054262L (no) | 2005-10-07 |
BRPI0408137A (pt) | 2006-03-01 |
US20040177646A1 (en) | 2004-09-16 |
WO2004081151A3 (en) | 2005-06-02 |
MY136573A (en) | 2008-10-31 |
CN100436987C (zh) | 2008-11-26 |
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