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EP0496283A2 - Procédé pour évaporer du gaz naturel liquéfié - Google Patents

Procédé pour évaporer du gaz naturel liquéfié Download PDF

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Publication number
EP0496283A2
EP0496283A2 EP92100681A EP92100681A EP0496283A2 EP 0496283 A2 EP0496283 A2 EP 0496283A2 EP 92100681 A EP92100681 A EP 92100681A EP 92100681 A EP92100681 A EP 92100681A EP 0496283 A2 EP0496283 A2 EP 0496283A2
Authority
EP
European Patent Office
Prior art keywords
natural gas
water
gas
fluid
heated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP92100681A
Other languages
German (de)
English (en)
Other versions
EP0496283A3 (en
Inventor
Hans Dr.-Ing. Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP0496283A2 publication Critical patent/EP0496283A2/fr
Publication of EP0496283A3 publication Critical patent/EP0496283A3/de
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F17C9/04—Recovery of thermal energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG

Definitions

  • the invention relates to a method for vaporizing liquid, pressurized natural gas, the natural gas being heated by the heat contained in the exhaust gas of a gas trubine, which is transferred from the exhaust gas to the natural gas with the aid of a circulating fluid.
  • pressurized natural gas with energy generation sea water or immersion flame evaporators have been used as heating medium for heating the natural gas to the discharge temperature and for heating fluids in separate circuits to the highest process temperature.
  • Submersible flame evaporators require more than 1% of the natural gas penetrated as fuel.
  • a device for re-evaporation of liquid gas is known from German published patent application 26 42 667.
  • the device is characterized by two thermodynamic circuits, one of which consists of a closed-circuit gas turbine, the waste heat of which is used to re-evaporate the liquid gas, and the other of which is a conventional open-circuit gas turbine, the waste heat of which in turn is used to operate the gas turbine in a closed circuit serves.
  • Nitrogen, hydrogen, but also other noble gases or inert gases are used as working means for the closed circuit.
  • the working means of the closed circuit in the known system is a gas. Therefore, at least one compressor is required to maintain the gas cycle at a desired pressure. As can be seen from the special description of the process, the Temperature differences of the gas within the circuit are considerable, they are between -134 ° C and 325 ° C in the case of nitrogen as a working fluid. This requires a very large amount of machine and equipment
  • the present invention is therefore based on the object of developing a method of the type mentioned at the outset in such a way that improved economy is possible.
  • the liquid, pressurized natural gas is heated to the delivery temperature in a heat exchange with the circulated water and is withdrawn as a gaseous product.
  • the circulated water, cooled after the heat exchange, is heated in a further heat exchange against the exhaust gases of a gas turbine.
  • the shaft power of this gas turbine is converted into electrical energy by a generator (so-called “cogeneration gas turbine”).
  • a small part, about 3%, of the vaporized natural gas is branched off from the product line and used as fuel gas for the gas turbine.
  • the method according to the invention has great advantages in terms of energy and process technology, in particular, when it is used in a system where river or sea water cannot be used as a heat source because of the low temperature.
  • gas turbines are the best economical solution because, in contrast to submersible flame evaporators, large amounts of electrical energy are generated in addition to heat.
  • any technically complex process control is also conceivable and possible. This would be e.g. realized by inserting one or more additional fluid circuits to recover the energy stored in the liquid natural gas. In this case, all additional fluid circuits and the liquid natural gas would be heated by the circulated fluid. Additional electrical energy can now be obtained by means of the expansion turbines installed in the fluid circuits.
  • water vapor and a mixture of water and additional components which push the freezing point of the solution below 0 ° C. can also be used.
  • a further embodiment of the method according to the invention provides that the water is evaporated, after which the steam formed is expanded to generate electricity, the relaxed steam also being able to be used to heat the pressurized natural gas.
  • FIG. 1 is the basic representation of the method according to the invention.
  • a gas turbine GT is supplied with high pressure fuel gas via line 1a and air via line 1b.
  • the hot exhaust gases leave the gas turbine GT via line 1 and are cooled in the heat exchanger E1 in countercurrent to the water being heated. You then leave the facility.
  • the water heated in the heat exchanger E1 in counterflow to the cooling exhaust gases of the gas turbine GT is led via line 2a to a second heat exchanger E2.
  • the water is cooled in counter-current to liquid, pressurized natural gas in line 3a.
  • the cooled water is conveyed from line 2b by means of pump P1 and heat exchanger E1 is again supplied via line 2c. This closes this water cycle.
  • the natural gas, heated and evaporated to the discharge temperature is withdrawn from the system via line 3b.
  • FIG 2 shows an embodiment of the inventive method of Figure 1, in which the circulated water is not only heated but also evaporated and expanded via expansion turbines to generate additional electrical energy. That over line 1 the Exhaust gas leaving the gas turbine flows through the two heat exchangers E3 and E1 in succession, is cooled in countercurrent to water that is being heated or evaporated, and then leaves the system. The water coming from the pump P1 in line 2c is heated in the heat exchanger E1 in countercurrent to the cooling exhaust gas of the gas turbine GT and then evaporated in the heat exchanger E3. The resulting water vapor passes via line 2a into an expansion turbine X1, in which it is expanded to perform work.
  • the water / steam mixture then flows through line 2d in succession through the two heat exchangers E4 and E2, in which it cools and condenses in countercurrent to natural gas which is heated and evaporated.
  • the water is returned to pump P1 via line 2b.
  • This water / steam cycle is closed.
  • the liquid, pressurized natural gas brought in via line 3a is evaporated in countercurrent to the cooling and condensing water / steam mixture and heated to the delivery temperature. It leaves the system via line 3b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP19920100681 1991-01-25 1992-01-16 Process for evaporating liquid natural gas Ceased EP0496283A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4102204 1991-01-25
DE4102204A DE4102204A1 (de) 1991-01-25 1991-01-25 Verfahren zum verdampfen von fluessigem erdgas

Publications (2)

Publication Number Publication Date
EP0496283A2 true EP0496283A2 (fr) 1992-07-29
EP0496283A3 EP0496283A3 (en) 1992-10-07

Family

ID=6423698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920100681 Ceased EP0496283A3 (en) 1991-01-25 1992-01-16 Process for evaporating liquid natural gas

Country Status (5)

Country Link
EP (1) EP0496283A3 (fr)
JP (1) JPH0670233B2 (fr)
KR (1) KR920015070A (fr)
DE (1) DE4102204A1 (fr)
TW (1) TW197466B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008011666A1 (fr) * 2006-07-25 2008-01-31 Drysdale Kenneth William Patte Système et procédé de transfert de chaleur
US7600396B2 (en) 2003-06-05 2009-10-13 Fluor Technologies Corporation Power cycle with liquefied natural gas regasification
DE102010056585A1 (de) 2010-12-30 2013-06-06 Gea Batignolles Technologies Thermiques Anordnung zur Temperaturerhöhung von flüssigem Erdgas
US8661820B2 (en) 2007-05-30 2014-03-04 Fluor Technologies Corporation LNG regasification and power generation
CN109386316A (zh) * 2017-08-08 2019-02-26 中国石油化工股份有限公司 一种lng冷能和bog燃烧能联合利用系统及方法
EP3591195A1 (fr) * 2018-07-05 2020-01-08 Siemens Aktiengesellschaft Processus de la turbine à gaz avancée à regazéification de gaz naturel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010000687A (ko) * 2000-10-13 2001-01-05 최동준 폐열 냉각수를 이용한 액화가스의 기화장치
TWI537865B (zh) 2015-03-11 2016-06-11 Liquid Gas Transmission and Distribution and Gasification Management System

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1042793B (it) * 1975-09-26 1980-01-30 Snam Progetti Impianto di rigassificazione di gas naturale liquefatto con produzione di energia elettrica
BE863558A (fr) * 1978-02-02 1978-08-02 Acec Perfectionnements aux installations de production d'energie comprenant des moteurs a combustion interne associes a des turbines de detente a circuit ferme entrainant des generatrices de courant electrique
JPS5560795A (en) * 1978-11-01 1980-05-08 Chiyoda Chem Eng & Constr Co Ltd Method of utilizing liquefied petroleum gas as fuel for electricity generation
JPS63186908U (fr) * 1987-05-25 1988-11-30

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7600396B2 (en) 2003-06-05 2009-10-13 Fluor Technologies Corporation Power cycle with liquefied natural gas regasification
WO2008011666A1 (fr) * 2006-07-25 2008-01-31 Drysdale Kenneth William Patte Système et procédé de transfert de chaleur
US8661820B2 (en) 2007-05-30 2014-03-04 Fluor Technologies Corporation LNG regasification and power generation
DE102010056585A1 (de) 2010-12-30 2013-06-06 Gea Batignolles Technologies Thermiques Anordnung zur Temperaturerhöhung von flüssigem Erdgas
CN109386316A (zh) * 2017-08-08 2019-02-26 中国石油化工股份有限公司 一种lng冷能和bog燃烧能联合利用系统及方法
EP3591195A1 (fr) * 2018-07-05 2020-01-08 Siemens Aktiengesellschaft Processus de la turbine à gaz avancée à regazéification de gaz naturel
WO2020007620A1 (fr) * 2018-07-05 2020-01-09 Siemens Aktiengesellschaft Processus de turbine a gaz étendu avec regasification de naturel
US11274598B2 (en) 2018-07-05 2022-03-15 Siemens Aktiengesellschaft Expanded gas turbine process with natural gas regasification

Also Published As

Publication number Publication date
EP0496283A3 (en) 1992-10-07
TW197466B (fr) 1993-01-01
DE4102204A1 (de) 1992-07-30
JPH05179265A (ja) 1993-07-20
KR920015070A (ko) 1992-08-26
JPH0670233B2 (ja) 1994-09-07

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