JP2008506026A - 液化天然ガスの処理法 - Google Patents
液化天然ガスの処理法 Download PDFInfo
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- 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
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- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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- 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
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- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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- 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
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- F25J2200/00—Processes or apparatus using separation by rectification
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- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/40—Features relating to the provision of boil-up in the bottom of a column
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- 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
- F25J2200/76—Refluxing the column with condensed overhead gas being cycled in a quasi-closed loop refrigeration cycle
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- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/78—Refluxing the column with a liquid stream originating from an upstream or downstream fractionator column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
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- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/04—Recovery of liquid products
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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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- 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
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/60—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being (a mixture of) hydrocarbons
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- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
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- 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
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- 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
- F25J2270/00—Refrigeration techniques used
- F25J2270/02—Internal refrigeration with liquid vaporising loop
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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
- F25J2270/04—Internal refrigeration with work-producing gas expansion loop
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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
- F25J2270/42—Quasi-closed internal or closed external nitrogen refrigeration cycle
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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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/40—Vertical layout or arrangement of cold equipments within in the cold box, e.g. columns, condensers, heat exchangers etc.
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- 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/62—Details of storing a fluid in a tank
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Abstract
Description
本発明の別の目的は代わりの方法を提供することである。
本発明の更に別の目的は液化天然ガス流中の低沸点成分の量を減少させる簡単な方法を提供することである。
液化圧力にて供給され低沸点成分を含有した液化天然ガスを処理して低沸点成分の含有量の少ない液体生成物流を得る方法であって、
(a)前記液化ガスを分離圧力まで膨張させて膨張した二相流体を得る工程と;
(b)前記膨張した二相流体を単一の気液接触領域を備えた塔に、該塔内に配置された前記単一の気液接触領域より下方にて導入する工程と;
(c)前記二相流体から液体を前記塔の底に集めて前記塔の底から低沸点成分の含有量の少ない液体流を引き出して液体生成物流を得る工程と;
(d)前記二相流体から蒸気を前記単一の気液接触領域に対して貫流させる工程と;
(e)前記塔の最上部から低沸点成分の豊富なガス流を引き出す工程と;
(f)工程(c)で得られた前記ガス流を熱交換器において加熱して加熱ガス流を得る工程と;
(g)工程(f)で得られた前記加熱ガス流を燃料ガス圧力まで圧縮して燃料ガスを得る工程と;
(h)工程(g)で得られた前記燃料ガスから再循環流を分離する工程と;
(i)工程(h)で得られた前記再循環流を少なくとも部分的に凝縮して還流を得る工程と;
(j)工程(i)で得られた前記還流を分離圧力にて前記単一の気液接触領域より上方にて前記塔に導入する工程と;
を含む方法を提供することによって達成される。
以下、例として添付の非限定的な図面に関して本発明を詳細に説明する。
5 ジュール-トムソン弁
10 塔
12 べーン入口装置
14 気液接触領域
15 水平接触トレー
18 ポンプ
20 貯蔵タンク
30 圧縮機
27、32 熱交換器
Claims (7)
- 液化圧力にて供給され低沸点成分を含有した液化天然ガスを処理して低沸点成分の含有量の少ない液体生成物流を得る方法であって、
(a)前記液化ガスを分離圧力まで膨張させて膨張した二相流体を得る工程と;
(b)前記膨張した二相流体を単一の気液接触領域を備えた塔に、該塔内に配置された前記単一の気液接触領域より下方にて導入する工程と;
(c)前記二相流体から液体を前記塔の底に集めて前記塔の底から低沸点成分の含有量の少ない液体流を引き出して液体生成物流を得る工程と;
(d)前記二相流体から蒸気を前記単一の気液接触領域に対して貫流させる工程と;
(e)前記塔の最上部から低沸点成分の豊富なガス流を引き出す工程と;
(f)工程(c)で得られた前記ガス流を熱交換器において加熱して加熱ガス流を得る工程と;
(g)工程(f)で得られた前記加熱ガス流を燃料ガス圧力まで圧縮して燃料ガスを得る工程と;
(h)工程(g)で得られた前記燃料ガスから再循環流を分離する工程と;
(i)工程(h)で得られた前記再循環流を少なくとも部分的に凝縮して還流を得る工程と;
(j)工程(i)で得られた前記還流を分離圧力にて前記単一の気液接触領域より上方にて前記塔に導入する工程と;
を含む方法。 - 工程(c)が、前記二相流体から液体を前記塔の底に集めて、該塔の底から低沸点成分の含有量の少ない液体流を引き出し;低沸点成分の含有量の少ない前記液体流を低圧にてフラッシュ容器に導入し;第2のガス流を前記フラッシュ容器の最上部から取り出し;そして前記フラッシュ容器の底から液体流を取り出して前記液体生成物流を得る工程からなる、請求項1に記載の方法。
- 前記第2のガス流を前記熱交換器において加熱し;前記第2のガス流を燃料ガス圧力まで圧縮し;そして前記第2のガス流を前記再循環流に加える工程をさらに含む、請求項2に記載の方法。
- 前記再循環流を少なくとも部分的に凝縮する工程(i)の工程が熱交換器において前記再循環流を前記ガス流で間接的に熱交換することからなる、請求項1〜3のいずれか一項に記載の方法。
- 前記加熱ガス流を燃料ガス圧力まで圧縮して燃料ガスを得る工程(g)の工程が、圧縮熱を除去することを更に含む、請求項1〜4のいずれか一項に記載の方法。
- 工程(h)において前記燃料ガスから分離された前記再循環流を、少なくとも部分的に凝縮する前に高圧に圧縮する、請求項1〜5のいずれか一項に記載の方法。
- 供給される前記液化天然ガスが7モル%未満の低沸点成分を含む請求項1〜6のいずれか一項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04254152 | 2004-07-12 | ||
EP04254152.4 | 2004-07-12 | ||
PCT/EP2005/053316 WO2006005746A1 (en) | 2004-07-12 | 2005-07-12 | Treating liquefied natural gas |
Publications (2)
Publication Number | Publication Date |
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JP2008506026A true JP2008506026A (ja) | 2008-02-28 |
JP5378681B2 JP5378681B2 (ja) | 2013-12-25 |
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Application Number | Title | Priority Date | Filing Date |
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JP2007520827A Expired - Fee Related JP5043655B2 (ja) | 2004-07-12 | 2005-07-12 | 液化天然ガスの処理法 |
JP2007520826A Expired - Fee Related JP5378681B2 (ja) | 2004-07-12 | 2005-07-12 | 液化天然ガスの処理法 |
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JP2007520827A Expired - Fee Related JP5043655B2 (ja) | 2004-07-12 | 2005-07-12 | 液化天然ガスの処理法 |
Country Status (10)
Country | Link |
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US (2) | US20080066493A1 (ja) |
EP (2) | EP1766312A1 (ja) |
JP (2) | JP5043655B2 (ja) |
KR (2) | KR101178072B1 (ja) |
AU (2) | AU2005261727B2 (ja) |
BR (2) | BRPI0512692A (ja) |
MY (2) | MY140540A (ja) |
PE (2) | PE20060221A1 (ja) |
RU (3) | RU2362954C2 (ja) |
WO (2) | WO2006005746A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008506027A (ja) * | 2004-07-12 | 2008-02-28 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 液化天然ガスの処理法 |
JP2013503314A (ja) * | 2009-07-21 | 2013-01-31 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 多相炭化水素流の処理方法及びそのための装置 |
JP2013036676A (ja) * | 2011-08-08 | 2013-02-21 | Air Water Inc | ボイルオフガス中の窒素除去方法およびそれに用いる窒素除去装置 |
US10995910B2 (en) | 2015-07-13 | 2021-05-04 | Technip France | Process for expansion and storage of a flow of liquefied natural gas from a natural gas liquefaction plant, and associated plant |
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Publication number | Priority date | Publication date | Assignee | Title |
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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 |
EP2702311B1 (en) * | 2011-04-19 | 2021-06-09 | Babcock IP Management (Number One) Limited | Method of cooling boil off gas and an apparatus therefor |
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JP2008506027A (ja) * | 2004-07-12 | 2008-02-28 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 液化天然ガスの処理法 |
JP2013503314A (ja) * | 2009-07-21 | 2013-01-31 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 多相炭化水素流の処理方法及びそのための装置 |
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Also Published As
Publication number | Publication date |
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US20080066492A1 (en) | 2008-03-20 |
RU2362954C2 (ru) | 2009-07-27 |
KR101238172B1 (ko) | 2013-02-28 |
WO2006005748A1 (en) | 2006-01-19 |
PE20060219A1 (es) | 2006-05-03 |
EP1766312A1 (en) | 2007-03-28 |
JP5378681B2 (ja) | 2013-12-25 |
PE20060221A1 (es) | 2006-05-03 |
MY140540A (en) | 2009-12-31 |
BRPI0512693A (pt) | 2008-04-01 |
AU2005261727B2 (en) | 2008-07-10 |
AU2005261729B2 (en) | 2008-07-17 |
US20080066493A1 (en) | 2008-03-20 |
KR20070032003A (ko) | 2007-03-20 |
RU2007105107A (ru) | 2008-08-20 |
JP2008506027A (ja) | 2008-02-28 |
KR101178072B1 (ko) | 2012-08-30 |
JP5043655B2 (ja) | 2012-10-10 |
BRPI0512692A (pt) | 2008-04-01 |
WO2006005746A1 (en) | 2006-01-19 |
EP1766311A1 (en) | 2007-03-28 |
KR20070034612A (ko) | 2007-03-28 |
RU2392552C1 (ru) | 2010-06-20 |
MY141887A (en) | 2010-07-16 |
AU2005261729A1 (en) | 2006-01-19 |
AU2005261727A1 (en) | 2006-01-19 |
RU2007105106A (ru) | 2008-08-20 |
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