MY163848A - A method and system for controlling the temperature of liquefied natural gas in a liquefaction process - Google Patents

A method and system for controlling the temperature of liquefied natural gas in a liquefaction process

Info

Publication number
MY163848A
MY163848A MYPI2011001169A MYPI2011001169A MY163848A MY 163848 A MY163848 A MY 163848A MY PI2011001169 A MYPI2011001169 A MY PI2011001169A MY PI2011001169 A MYPI2011001169 A MY PI2011001169A MY 163848 A MY163848 A MY 163848A
Authority
MY
Malaysia
Prior art keywords
temperature
natural gas
controlling
liquefied natural
chiller
Prior art date
Application number
MYPI2011001169A
Inventor
Sheema Che Din Nazatul
Ho Cheng Shiun Jinson
Hafeeza Haji Nawawi Noradnin
Hassan Hasrul
'atikah Mahzan Nurul
Matkassan Ahmat
Original Assignee
Petroliam Nasional Berhad (Petronas)
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 Petroliam Nasional Berhad (Petronas) filed Critical Petroliam Nasional Berhad (Petronas)
Priority to MYPI2011001169A priority Critical patent/MY163848A/en
Priority to PCT/MY2012/000049 priority patent/WO2012125018A1/en
Publication of MY163848A publication Critical patent/MY163848A/en

Links

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
    • 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
    • F25J1/0244—Operation; Control and regulation; Instrumentation
    • F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
    • F25J1/0249—Controlling refrigerant inventory, i.e. composition or quantity

Abstract

DISCLOSED HEREIN IS A METHOD FOR CONTROLLING THE TEMPERATURE OF A LIQUEFIED NATURAL GAS (LNG) PRODUCED FROM A CHILLER IN A LIQUEFACTION PROCESS, THE METHOD COMPRISING THE STEP OF VARYING THE COMPOSITION OF A REFRIGERANT STREAM IN THERMAL COMMUNICATION WITH NATURAL GAS UNDERGOING LIQUEFACTION IN SAID CHILLER TO THEREBY CONTROL THE TEMPERATURE OF THE LNG PRODUCED FROM THE CHILLER,WHEREIN THE REFRIGERANT STREAM COMPRISES A MIXTURE OF N2, C1, C2 AND C3 COMPONENTS; AND WHEREIN SAID VARYING STEP COMPRISES INDEPENDENTLY ADJUSTING A MOLAR COMPOSITION OF ONE OR MORE OF SAID REFRIGERANT COMPONENTS IN RESPONSE TO A RESPECTIVE SET OF PROCESS VARIABLES, EACH RESPECTIVE SET OF PROCESS VARIABLES COMPRISING AT LEAST ONE UNIQUE TEMPERATURE VARIABLE.
MYPI2011001169A 2011-03-15 2011-03-15 A method and system for controlling the temperature of liquefied natural gas in a liquefaction process MY163848A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2011001169A MY163848A (en) 2011-03-15 2011-03-15 A method and system for controlling the temperature of liquefied natural gas in a liquefaction process
PCT/MY2012/000049 WO2012125018A1 (en) 2011-03-15 2012-03-12 A method and system for controlling the temperature of liquefied natural gas in a liquefaction process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI2011001169A MY163848A (en) 2011-03-15 2011-03-15 A method and system for controlling the temperature of liquefied natural gas in a liquefaction process

Publications (1)

Publication Number Publication Date
MY163848A true MY163848A (en) 2017-10-31

Family

ID=46830930

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2011001169A MY163848A (en) 2011-03-15 2011-03-15 A method and system for controlling the temperature of liquefied natural gas in a liquefaction process

Country Status (2)

Country Link
MY (1) MY163848A (en)
WO (1) WO2012125018A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673501B (en) * 2013-12-11 2015-09-09 辽宁哈深冷气体液化设备有限公司 The preparation method of high-efficiency multi-stage throttling natural gas liquefaction device and liquefied natural gas
CN105487466A (en) * 2015-12-30 2016-04-13 新兴能源装备股份有限公司 Natural gas filling substation and remote monitoring and diagnosis system
CN105487467A (en) * 2015-12-30 2016-04-13 新兴能源装备股份有限公司 Remote control and diagnosis system of LNG filling device with pry
RU2640976C1 (en) * 2017-05-05 2018-01-12 Компания "Сахалин Энерджи Инвестмент Компани Лтд." Method for controlling liquefaction of natural gas
RU2706093C1 (en) 2018-07-13 2019-11-13 Компания "Сахалин Энерджи Инвестмент Компани Лтд." Method of controlling composition of coolant in cycle of preliminary mixed coolant during production of liquefied natural gas

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809154A (en) * 1986-07-10 1989-02-28 Air Products And Chemicals, Inc. Automated control system for a multicomponent refrigeration system
DZ2671A1 (en) * 1997-12-12 2003-03-22 Shell Int Research Liquefaction process of a gaseous fuel product rich in methane to obtain a liquefied natural gas.
TWI314637B (en) * 2003-01-31 2009-09-11 Shell Int Research Process of liquefying a gaseous, methane-rich feed to obtain liquefied natural gas

Also Published As

Publication number Publication date
WO2012125018A1 (en) 2012-09-20

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