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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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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 ...
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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 ...
Shut-off valve for liquefied natural gas
Kc Lng Tech Co., Ltd.
May 25, 2017 - N°20170146134

The invention is directed to a valve for gas under pressure, for example at temperatures below −100° c., comprising a body with a gas inlet, a gas outlet and a passage connecting the inlet with the outlet; a shut-off device for closing the gas passage; a spindle designed for operating the shut-off device; and at least one gasket between ...
Liquefied natural gas storage tank and insulating wall securing device for liquefied natural gas storage ...
Kc Lng Tech Co., Ltd.
May 25, 2017 - N°20170144733

The present invention relates to: a liquefied natural gas (lng) storage tank, which has insulating wall securing devices for the lng storage tank installed at the optimum position, thus is stable with respect to thermal contraction, and may require a minimum number of insulating wall securing devices; and an insulating wall securing device for an lng storage tank. One embodiment ...
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Consolidated refrigeration and liquefaction module in a hydrocarbon processing plant
Hyundai Heavy Industries Co., Ltd.
April 06, 2017 - N°20170097188

A method of processing natural gas to produce liquefied natural gas using a consolidated refrigeration and liquefaction module. The natural gas is cooled in a first array of one or more heat exchangers using a first refrigerant from a first refrigerant circuit, wherein the first refrigerant is compressed in a first compressor. A second refrigerant from a second refrigerant circuit ...
Lng gasification systems and methods
Crowley Maritime Corporation
April 06, 2017 - N°20170097178

A skid for capturing refrigeration from liquefied natural gas vaporization is disclosed comprising a first heat exchanger mounted on the skid, the first heat exchanger having a natural gas inlet, a natural gas outlet, a process fluid inlet, and a process fluid outlet. The process fluid is configured to flow from the process fluid inlet through the first heat exchanger ...
Integrated lng gasification and power production cycle
8 Rivers Capital, Llc
March 09, 2017 - N°20170067373

The present disclosure provides an integrated power generating system and method and liquefied natural gas (lng) vaporization system and method. More particularly, heat from a co2 containing stream from the power generating system and method can be used to heat the lng for re-gasification as gaseous co2 from co2 containing stream is liquefied. The liquefied co2 can be captured and/...
Apparatus and system for combined temperature and pressure swing adsorption processes related thereto
8 Rivers Capital, Llc
March 02, 2017 - N°20170056814

Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve passing streams through adsorbent bed units to treat the pipeline quality natural gas to form a stream that complies with liquefied natural gas (lng) specifications. The process may involve a combined tsa and psa process, which is utilized to remove contaminants from the ...
Apparatus and system for swing adsorption processes related thereto
8 Rivers Capital, Llc
March 02, 2017 - N°20170056810

Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve passing streams through adsorbent bed units to remove contaminants, such as water, from the stream. As part of the process, the adsorbent bed unit is purged with a purge stream that is provided at a temperature less than 450° f. The de-contaminated stream ...
Method for the production of liquefied natural gas
L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
February 09, 2017 - N°20170038139

A method for the production of liquefied natural gas (lng) without the use of externally provided electricity is provided the method may include the steps of: providing a transportable apparatus, wherein the transportable apparatus comprises a housing, a heat exchanger, a phase separator, a first refrigeration supply, and a second refrigeration supply, wherein the first refrigeration supply and the second ...
Apparatus for the production of liquefied natural gas
L'air Liquide, Societe Anonyme Pour I'etude Et I'exploitation Des Procedes Georges Claude
February 09, 2017 - N°20170038138

A transportable apparatus for production of liquefied natural gas (lng) having include a housing, a natural gas feed inlet, a heat exchanger, a phase separator, a liquid outlet disposed on the cold end of the heat exchanger, an lng product outlet disposed on the cold end of the heat exchanger, a first refrigeration supply, a second refrigeration supply, and wherein ...
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Method for the integration of a nitrogen liquefier and liquefaction of natural gas for the ...
L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
February 09, 2017 - N°20170038136

A method for the integration of a nitrogen liquefier and liquefaction of natural gas for the production of liquefied natural gas and liquid nitrogen is provided. The method may include providing a nitrogen liquefaction unit and providing a natural gas liquefaction unit. Liquefaction of the nitrogen can be achieved via a nitrogen refrigeration cycle within the nitrogen liquefaction unit. Liquefaction ...
Method for the production of liquefied natural gas and liquid nitrogen
L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
February 09, 2017 - N°20170038135

A method for the production of liquefied natural gas and liquid nitrogen is provided. The method may include providing a high pressure natural gas stream, splitting the high pressure natural gas stream into a first portion and a second portion, and liquefying the first portion of the high pressure natural gas stream to produce an lng stream. The refrigeration needed ...
Method for the production of liquefied natural gas
L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
February 09, 2017 - N°20170038134

A method for the production of liquefied natural gas is provided. The method may include providing a high pressure natural gas stream, splitting the high pressure natural gas stream into a first portion and a second portion, and liquefying the first portion of the high pressure natural gas stream to produce an lng stream. The refrigeration needed for cooling and ...
Cryogenic pump for liquefied natural gas
Caterpillar Inc.
February 09, 2017 - N°20170037836

A cryogenic pump for pumping liquefied natural gas (lng) from a cryogenic tank storing lng includes a drive assembly and a pump assembly disposed along a pump axis. The drive assembly includes a spool housing having a plurality of spool valves arranged around the pump axis, a tappet housing having a plurality of tappet bores with slidable tappets arranged around ...
Increasing efficiency in an lng production system by pre-cooling a natural gas feed stream
Caterpillar Inc.
January 19, 2017 - N°20170016668

Described herein are systems and processes to produce liquefied natural gas (lng) using liquefied nitrogen (lin) as the refrigerant. Greenhouse gas contaminants are removed from the lin using a greenhouse gas removal unit. The lng is compressed prior to being cooled by the lin.
Liquefied natural gas production system and method with greenhouse gas removal
Caterpillar Inc.
January 19, 2017 - N°20170016667

Described herein are systems and processes to produce liquefied natural gas (lng) using liquefied nitrogen (lin) as the refrigerant. Greenhouse gas contaminants are removed from the lin using a greenhouse gas removal unit.
System and method for the production of liquefied natural gas
Dresser-rand Company
January 12, 2017 - N°20170010042

A method for producing liquefied natural gas (lng) is provided. The method may include feeding natural gas from a high-pressure natural gas source to a separator and removing a non-hydrocarbon from the natural gas. A portion of the natural gas from the separator may be precooled, and the precooled natural gas may be cooled in a first heat exchanger with ...
Systems and methods for the production of liquefied natural gas using liquefied natural gas
Dresser-rand Company
January 12, 2017 - N°20170010041

Described herein are systems and processes to produce liquefied nitrogen (lin) using liquefied natural gas (lng) as the refrigerant. The lin may be produced by indirect heat exchange of at least one nitrogen gas stream with at least two lng streams within at least one heat exchanger where the lng streams are at different pressures.
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