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Liquefied Natural Gas

Liquefied Natural Gas-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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System and method for liquefaction of natural gas
Dresser-rand Company
December 28, 2017 - N°20170370639

A liquefaction system and method for producing liquefied natural gas (lng) is provided. The liquefaction system may include a heat exchanger to cool natural gas to lng, a first compressor to compress and combine first and second portions of a single mixed refrigerant from the heat exchanger, a first cooler to cool the single mixed refrigerant from the first compressor ...
Floating liquefied natural gas commissioning system and method
Excelerate Energy Limited Partnership
December 21, 2017 - N°20170363350

A floating liquefied natural gas (“flng”) commissioning system and method are described. A system for commissioning a flng vessel comprises a floating liquefaction vessel positioned offshore proximate a shipyard, the floating liquefaction vessel comprising a natural gas liquefaction module and a first lng storage tank cryogenically coupled to the natural gas liquefaction module, a regasification vessel ...
Liquefied natural gas vaporizer for downhole oil or gas applications
Halliburton Energy Services, Inc.
December 14, 2017 - N°20170356597

A vaporizer apparatus for vaporizing liquefied natural gas (lng) into vapor-phase natural gas for injection into an oil or gas well, comprises a blower assembly, a burner section, a heat exchanger section, and at least one flammable gas concentration sensor. The blower assembly comprises a primary blower configured to move air along an air flow path through the vaporizer apparatus ...
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Process for liquefying natural gas and carbon dioxide
L'air Liquide, Société Anonyme Pour L'etude Et L'exploitation Des Procédés Georges Claude
December 07, 2017 - N°20170350647

A process for producing liquefied natural gas (14) and liquid carbon dioxide (co2) (15) comprising at least the following steps: step a): separating a natural gas feed gas (1), containing hydrocarbons and carbon dioxide in a treatment unit (2), into a co2-enriched gas stream (4) and a co2-depleted natural gas stream (3); step b): liquefying the co2-depleted natural gas stream (3) resulting from step ...
Process for purifying natural gas and liquefying carbon dioxide
L'air Liquide, Société Anonyme Pour I'exploitation Des Procédés Georges Claude
December 07, 2017 - N°20170350646

A process for producing liquefied natural gas and liquid carbon dioxide from a natural gas feed gas comprising at least the following steps: separation of a natural gas feed gas into a co2-enriched gas stream and a natural gas stream; cooling of said natural gas in a heat exchanger; purification of the in step 1 from compounds containing at least ...
Integrated process for ngl (natural gas liquids recovery) and lng (liquefaction of natural gas)
Linde Engineering North America Inc.
November 23, 2017 - N°20170336138

The invention relates to an integrated process and apparatus for liquefaction of natural gas and recovery of natural gas liquids. In particular, the improved process and apparatus reduces the energy consumption of a liquefied natural gas (lng) unit by using a portion of the already cooled overhead vapor from a fractionation column from an ngl (natural gas liquefaction) unit to, ...
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Heat-insulation system for liquefied natural gas cargo hold
Daewoo Shipbuilding & Marine Engineering Co., Ltd.
November 09, 2017 - N°20170320549

Disclosed is a heat-insulation system for a liquefied natural gas cargo hold, which comprises a primary sealing wall, a secondary sealing wall, and a secondary heat-insulating layer, and is applied to a liquefied natural gas cargo hold. The heat-insulation system for a liquefied natural gas cargo hold comprises a collar stud installed on a line on the upper surface of ...
Integrated nitrogen removal in the production of liquefied natural gas using intermediate feed gas separation
Air Products And Chemicals, Inc.
October 05, 2017 - N°20170284737

A method and apparatus for liquefying a natural gas feed stream and removing nitrogen therefrom to produce a nitrogen-depleted lng product, in which a natural gas feed stream is fed into the warm end of a main heat exchanger, cooled and at least partially liquefied, withdrawn from an intermediate location of the main heat exchanger and separated to form a ...
System and method for the production of liquefied natural gas
Dresser-rand Company
September 21, 2017 - N°20170268818

A system and method for producing liquefied natural gas are provided. The method may include compressing a process stream containing natural gas in a compression assembly to produce a compressed process stream. The method may also include removing non-hydrocarbons from the compressed process stream in a separator, and cooling the compressed process stream with a cooling assembly to thereby produce ...
System for cooling an electrical component of a machine
Electro-motive Diesel, Inc.
September 14, 2017 - N°20170261235

A system for cooling at least one electrical component of a machine. The machine is powered by a liquefied natural gas (lng). The system includes at least one blower and at least one heat exchanger. The at least one blower is arranged to direct an air flow towards the at least one electrical component. The at least one heat exchanger ...
Heat exchange system between liquefied natural gas and heat dissipation apparatus
Hon Hai Precision Industry Co., Ltd.
September 07, 2017 - N°20170254480

A heat exchange system includes a cold source, a heat dissipation apparatus, a water storage tank, a heating portion, and a cooling portion. The heating portion is coupled between the cold source and the water storage tank. The cooling portion is coupled between the heat dissipation apparatus and the water storage tank. The cooling portion transmits heat of the heat ...
Liquefied natural gas fuel barge
Trinity Marine Products, Inc.
August 24, 2017 - N°20170240251

A system that includes a marine vessel with a vaporizer skid disposed on the marine vessel. The vaporizer skid is configured to convert a liquid to a gas. The system further includes a first tank disposed on the marine vessel that is configured to store the liquid. The system further includes a plurality of header modules disposed on the marine ...
Compressed natural gas vehicle safety system and method
August 17, 2017 - N°20170233243

A multiply-redundant system that protects fueling of rockets, aircraft and other vehicles using liquefied natural gas (lng) along with an oxidizer such as liquefied oxygen. One or more sensors in combination with one or more optional microswitches combine to detect any leaks, fire or explosion hazards quickly locking out further fueling. For different levels of safety, different combinations of sensors ...
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Method for the production of liquefied natural gas
Dresser-rand Company
July 06, 2017 - N°20170191749

A system and method for producing liquefied natural gas are provided. The method may include compressing a process stream containing natural gas in a compression assembly to produce a compressed process stream. The method may also include removing non-hydrocarbons from the compressed process stream in a separator, and cooling the compressed process stream with a cooling assembly to thereby produce ...
System and method for storing and transferring a cryogenic liquid
Green Buffalo Fuel, Llc
July 06, 2017 - N°20170191619

This fluid storage and transfer system includes a first storage tank and second storage tank configured to contain cryogenic liquids. The first storage tank has a heat exchanger. A second cryogenic liquid from the second storage tank subcools a first cryogenic liquid in the first storage tank and pressurizes the first storage tank. The first storage tank is then further ...
Liquefied natural gas storage tank and insulating wall for liquefied natural gas storage tank
Daewoo Shipbuilding & Marine Engineering Co., Ltd.
June 22, 2017 - N°20170175952

The present invention relates to a liquefied natural gas (lng) storage tank having slits in the upper and lower portions of a first insulating wall, and to an insulating wall for an lng storage tank. One embodiment of the present invention provides a storage tank for storing lng therein, comprising: a first sealing wall coming into contact with the lng ...
Method and system for separating nitrogen from liquefied natural gas using liquefied nitrogen
June 15, 2017 - N°20170167788

A method for separating nitrogen from an lng stream with a nitrogen concentration of greater than 1 mol %. A pressurized lng stream is produced at a liquefaction facility by liquefying natural gas, where the pressurized lng stream has a nitrogen concentration of greater than 1 mol %. At least one liquid nitrogen (lin) stream is received from storage tanks, the at least one ...
Method of natural gas liquefaction on lng carriers storing liquid nitrogen
June 15, 2017 - N°20170167787

A method for producing liquefied natural gas (lng). A natural gas stream is transported to a liquefaction vessel. The natural gas stream is liquefied on the liquefaction vessel using at least one heat exchanger that exchanges heat between the natural gas stream and a liquid nitrogen stream to at least partially vaporize the liquefied nitrogen stream, thereby forming a warmed ...
Pre-cooling of natural gas by high pressure compression and expansion
June 15, 2017 - N°20170167786

A method of producing liquefied natural gas (lng) is disclosed. A natural gas stream is provided from a supply of natural gas. The natural gas stream is compressed in at least two serially arranged compressors to a pressure of at least 2,000 psia to form a compressed natural gas stream. The compressed natural gas stream is cooled to form a cooled ...
Expander-based lng production processes enhanced with liquid nitrogen
June 15, 2017 - N°20170167785

A method for producing liquefied natural gas (lng). A natural gas stream is directed to a mechanical refrigeration unit to liquefy the natural gas stream and form a pressurized liquefied natural gas (lng) stream with a pressure greater than 50 psia (345 kpa) and less than 500 psia (3445 kpa). A liquid refrigerant subcooling unit is provided at a first location. Liquid refrigerant is ...
Anchor structure, and liquefied natural gas storage tank comprising said anchor structure
Kc Lng Tech Co., Ltd.
June 08, 2017 - N°20170159888

The present invention relates to an anchor structure able to actively cope with hull deformation, and to a liquid natural gas storage tank and a production method for a liquid natural gas storage tank comprising the anchor structure. According to one embodiment of the present invention, an anchor structure is provided wherein an anchor structure, for linking a sealing wall ...
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