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Liquefied Natural Gas patents

      

This page is updated frequently with new Liquefied Natural Gas-related patent applications.




 Method for estimating a characteristic of a liquefied natural gas load patent thumbnailMethod for estimating a characteristic of a liquefied natural gas load
A method of estimating a characteristic (qn′, q1′) of a load of liquefied natural gas being transported by a tanker at any point on a route (401, p; 501, 502, 503), the method being characterized in that the estimation is made by integrating, over the route (410, 411, 412, 420; 510, 511, 512) from a reference point (400, p; 500) at which said characteristic is known (qn, ql), a relationship associating the instantaneous transformation of the load with instantaneous navigation conditions.. .
Gdf Suez


 Method for conversion of a vessel for use as floating liquefied natural gas facility patent thumbnailMethod for conversion of a vessel for use as floating liquefied natural gas facility
A method for conversion of a very large ore carrier (vloc) to an flng vessel for offshore stranded gas reservoirs and at-shore or near-shore liquefied natural gas (lng) export terminals.. .
Bechtel Hydrocarbon Technology Solutions, Inc.


 Quench system for a refrigeration cycle of a liquefied natural gas facility and  quenching patent thumbnailQuench system for a refrigeration cycle of a liquefied natural gas facility and quenching
A quench system for a refrigeration cycle of a liquefied natural gas (lng) facility includes at least one compressor for compressing a refrigerant that cools a natural gas stream. Also included is a quench fluid supply structure containing a quench fluid.
Conocophillips Company


 Liquefied gas-driven production system patent thumbnailLiquefied gas-driven production system
One illustrative artificial lift method includes deriving compressed natural gas (cng) from liquefied natural gas (lng) and employing the cng to hydraulically drive a downhole pump that forces fluid from the well. An illustrative system embodiment includes an evaporator, a controller, and a downhole pump.
Ctlift Systems Llc


 Liquefied natural gas transportation/distribution and vaporization management system patent thumbnailLiquefied natural gas transportation/distribution and vaporization management system
A liquefied natural gas transportation/distribution and vaporization management system includes a transportation/distribution platform, on which at least one gas transportation/distribution section, a vaporization treatment section, and a central management section are arranged. The gas transportation/distribution section allows at least one liquefied natural gas train to unload liquefied natural gas.
Electric Energy Express Corporation


 System and  the production of liquefied natural gas patent thumbnailSystem and the production of liquefied natural gas
A method for producing liquefied natural gas (lng) and separating natural gas liquids (ngls) from the lng is provided. The method may include compressing natural gas to compressed natural gas, removing a non-hydrocarbon from the compressed natural gas, and cooling the compressed natural gas to a cooled, compressed natural gas.
Dresser - Rand Company


 Method and device for regulating the pressure in a liquefied natural gas vessel patent thumbnailMethod and device for regulating the pressure in a liquefied natural gas vessel
A method is provided for regulating the pressure in a first vessel, having a substance mixture which is present in liquid and gaseous phases and which has a first component and a second component, wherein, in the method, the temperature of the substance mixture is set such that the pressure in the first vessel lies below a predefinable value and, at the set temperature and the pressure in the first vessel, the substance mixture is present only in the liquid and gaseous phases.. .
Linde Aktiengesellschaft


 Liquefied gas-driven gas-lift system patent thumbnailLiquefied gas-driven gas-lift system
One illustrative artificial lift method includes deriving compressed natural gas (cng) from liquefied natural gas (lng) and injecting the cng into the well as a lift gas that aids in conveying fluid from the well. An illustrative system embodiment includes an evaporator and a controller.
Ctlift Systems Llc


 Multiple pump system patent thumbnailMultiple pump system
A multiple pump system is disclosed. The multiple pump system may include a fluid tank and a multiple pump vessel connected to the fluid tank.
Gp Strategies Corporation


 Pressure management system for storage tank containing liquefied natural gas patent thumbnailPressure management system for storage tank containing liquefied natural gas
A pressure management system for a storage tank of liquefied natural gas (lng) is disclosed. The storage tank includes an outlet, an ullage space, and a condenser coil.
Electro-motive Diesel, Inc.


Liquefied natural gas from rich natural gas

Rich natural gas is dried in a water scavenger unit, and then purified in a refluxed absorber. The refluxed stream for the absorber is a stream of predominantly methane condensed by cryogenic refrigeration.

Lng fueling station and lng fueling method using lng tank container

An lng fueling station according to the present invention includes: an installation part on which an lng tank container is installed, and a supply part for supplying liquefied natural gas from the lng tank container installed on the installation part to an object for supply, wherein the lng tank container can be transported and installed while storing the liquefied natural gas, and the lng tank container is transported to the installation part and then installed on the installation part.. .

Cold-rolled narrow strip in the form of flat wire or profiled elements made of a high-strength steel for use in flexible pipes, in particular in flexible pipes for offshore applications, and producing such cold-rolled narrow strips

For the production of armoring plies in flexible pipes for conveying petroleum and natural gas, as well as for transport of liquefied natural gas (flng) under acid gas conditions (acidic attack media). The invention furthermore relates to a method for the production of corresponding flat wires or narrow strips..

Dockside ship-to-ship transfer of lng

Systems and methods for dockside regasification of liquefied natural gas (lng) are described herein. The methods include providing lng from a lng carrier to a regasification vessel.
Excelerate Energy Limited Partnership

System and liquefied natural gas production

A system and method for producing liquefied natural gas from a natural gas source is provided. The method may include feeding natural gas provided by the natural gas source to a liquefaction module.
Dresser-rand Company

Boil-off gas temporary storage system

Provided is a boil-off gas temporary storage system and, more particularly, is a boil-off gas temporary storage system which compresses boil-off gas at high pressure, temporarily stores the compressed boil-off gas in a boil-off gas absorbing tank, supplies the stored boil-off gas to a high-pressure gas transmission part and a high-pressure liquefied natural gas transmission part to recycle the boil-off gas, controls the pressure of a low-pressure liquefied natural gas cargo tank and a fuel liquefied natural gas tank of a ship to be filled with gas, and removes the necessity of a complicated and high-priced re-liquefaction device, in a method for removing the boil-off gas to depressurize the fuel liquefied natural gas tank of a ship to be filled with gas in the relatively high-pressure state before supplying the liquefied natural gas to a ship to be filled with gas.. .
Korea Advanced Institute Of Science And Technology

Systems and methods for natural gas liquefaction capacity augmentation

Systems and methods for natural gas liquefaction capacity augmentation using supplemental cooling systems and methods to improve the efficiency of a liquefaction cycle for producing liquefied natural gas (lng).. .

Fuel gas supply system and ship

Disclosed herein is arrangement of a fuel gas tank in a fuel gas supply system that supplies liquefied natural gas to an engine. In accordance with one aspect of the invention, a fuel gas supply system of a ship includes an engine generating driving force using fuel gas; and a fuel gas tank storing the fuel gas to be supplied to the engine, wherein the engine is disposed in an engine room placed at the stern of the ship and the fuel gas tank is disposed above the engine room..

System for evaporating liquefied natural gas (lng)

A system for evaporating liquefied natural gas (lng) in a vehicle having an engine which is powered by natural gas, the system including an evaporator for the lng, and the system including a heat engine for recovering the thermal energy from the exhaust gas of the vehicle, the heat engine including a condenser for condensing a coolant, this condenser being in operative connection with the evaporator for the lng for the purpose of exchanging heat.. .
Robert Bosch Gmbh

Method and device for replenishing a supply of cryogenic liquid, notably of liquefied natural gas

A method for replenishing the supply of cryogenic liquid from a storage tank (2) includes: pressurizing a container (14) with cryogenic gas at a first pressure, said container having passing through it a first cryogenic fluid flow line referred to as the cold line and a second cryogenic fluid flow line referred to as the hot line, passing cryogenic liquid at a second pressure through the cold line (12), and supplying the container (14) with cryogenic gas at least partially from cryogenic liquid pumped from the storage tank (2) and vaporized. A device is also provided for the method hereinabove..
Cryostar Sas

Method and system for treating and liquefying natural gas

A method for liquefying natural gas comprises: condensing at least a portion of a natural gas feed stream to produce a partially condensed stream; and separating the partially condensed stream into a first liquid fraction and a first vapour fraction; wherein the first liquid fraction comprises liquefied natural gas.. .
Propak Systems Ltd.

Natural gas vehicle maintenance separation and containment system

A separation and containment system is provided. The separation and containment system can contain natural gasses, e.g., compressed natural gas (cng) and liquefied natural gas (lng), within a natural gas vehicle (ngv) service area, and separate the ngv service area from a conventional service area.
Clean Energy Fuels Corp.

Dual mixed refrigerant system

Processes and systems are provided for recovering a liquefied natural gas (lng) stream from a hydrocarbon-containing feed gas stream using dual closed-loop mixed refrigerant cycles. In particular, the processes and systems described herein can be used to efficiently and effectively liquefy methane from a hydrocarbon-containing feed gas stream with the use of a first refrigeration system and a second refrigeration system utilizing a first mixed refrigerant and a second mixed refrigerant.
Black & Veatch Holding Company

Dual mixed refrigerant system

Processes and systems are provided for recovering a liquefied natural gas (lng) stream from a hydrocarbon-containing feed gas stream using dual closed-loop mixed refrigerant cycles. In particular, the processes and systems described herein can be used to efficiently and effectively liquefy methane from a hydrocarbon-containing feed gas stream by utilizing a first refrigeration system and a second refrigeration system in fluid communication with a turboexpander and separator..
Black & Veatch Holding Company

Dual mixed refrigerant system

Processes and systems are provided for recovering a liquefied natural gas (lng) stream from a hydrocarbon-containing feed gas stream using dual closed-loop mixed refrigerant cycles. In particular, the processes and systems described herein can be used to efficiently and effectively liquefy methane from a hydrocarbon-containing feed gas stream with the use of a first refrigeration system and a second refrigeration system utilizing a first mixed refrigerant and a second mixed refrigerant..
Black & Veatch Holding Company

Remote natural gas supply station using lng tank container and supplying natural gas using the same

A natural gas supply station according to the present invention includes an installation structure on which an lng tank container is installed and a gas vaporizer that receives a liquefied natural gas from the lng tank container to vaporize the liquefied natural gas. Here, the installation structure includes a moving part reciprocatively moving in a direction in which the lng tank container is unloaded from a transport unit, and the moving part is separably fixed to the lng tank container to move the lng tank container loaded on the transport unit to the installation structure or the lng tank container loaded on the installation structure to the transport unit..
Korea Gas Corporation

System for supplying liquefied natural gas fuel

A system for supplying fuel includes a fuel supplying line connected from a fuel storage tank to an engine and including a pressure measuring sensor, a pump provided on the fuel supplying line and configured to pressurize fuel outputted from the fuel storage tank, a heat exchanger provided on the fuel supplying line between the pump and the engine and configured to heat the fuel outputted from the pump, a first return line provided at a front end of the heat exchanger on the fuel supplying line and configured to return the fuel from the fuel supplying line, and a second return line provided at a rear end of the heat exchanger on the fuel supplying line and configured to return the fuel from the fuel supplying line.. .
Hyundai Heavy Industries Co., Ltd.

Apparatus and transferring inflammable material on marine structure

A system for supplying fuel to an engine of a ship. The system includes a high pressure pump pressurizing a liquefied natural gas (lng) and supplying the pressurized lng to the engine, a hydraulic motor driving the high pressure pump and a chamber carrying the high pressure pump and the hydraulic motor.
Daewoo Shipbuilding & Marine Engineering Co., Ltd.

Flexible liquefied natural gas plant

The present techniques are directed to a flexible liquefied natural gas (lng) plant that may be tied to an external electric grid for importing or exporting electric power. Exemplary embodiments provide a method for producing lng that includes producing a base load capacity of refrigeration capacity for lng production from a first compression system.

Air-cooled modular lng production facility

A liquefied natural gas production plant for producing a product stream of liquefied natural gas installed at a production location and a process for producing liquefied natural gas includes a plurality of modules and an air-cooled heat exchanger bank designed for the installed production train. The heat exchanger bank includes a first row of air-cooled heat exchanger bays, and an adjacent parallel second row of air-cooled heat exchanger bays..
Woodside Energy Technologies Pty Ltd.

Natural gas liquefaction process

The described invention relates to processes and systems for treating a gas stream, particularly one rich in methane for forming liquefied natural gas (lng), said process including: (a) providing a gas stream; (b) providing a refrigerant; (c) compressing said refrigerant to provide a compressed refrigerant; (d) cooling said compressed refrigerant by indirect heat exchange with a cooling fluid; (e) expanding the refrigerant of (d) to cool said refrigerant, thereby producing an expanded, cooled refrigerant; (f) passing said expanded, cooled refrigerant to a first heat exchange area; (g) compressing the gas stream of (a) to a pressure of from greater than or equal to 1,000 psia to less than or equal to 4,500 psia; (h) cooling said compressed gas stream by indirect heat exchange with an external cooling fluid; and heat exchanging the compressed gas stream with the expanded, cooled refrigerant stream.. .

System and controlling operation of liquefied natural gas system

A method of controlling a liquefied natural gas system is provided. The method includes providing a first pump in association with a tank.
Electro-motive Diesel, Inc.

Method and controller for setting the combustion parameters for an internal combustion engine operated with liquefied natural gas

A method is provided for setting combustion parameters of an internal combustion engine operated with liquefied natural gas, the combustion parameters being sensed during operation of the internal combustion engine and being stored upon shutoff of the internal combustion engine. Also provided is a controller for carrying out the method.
Robert Bosch Gmbh

Vaporization device for low-temperature liquefied gas

A vaporization device (10) for a low-temperature liquefied gas is provided with: a plurality of heat-transfer pipes (20) into which liquefied natural gas (lng) is introduced; upper headers (24) which cause natural gas (ng) flowing out from the plurality of heat-transfer pipes (20) to converge; first troughs (28) which supply seawater to the plurality of heat-transfer pipes (20) such that the seawater flows down along outer surfaces of the plurality of heat-transfer pipes (20); and second troughs (36) which drop seawater onto the upper headers (24) from above such that the seawater flows down along outer surfaces of the upper headers (24). In the plurality of heat-transfer pipes (20), the lng is heated by being subjected to heat exchange with the seawater.
(kabushiki Kais Ha Kobe Seiko Sho (kobe Steel, Ltd.))

Pressure build-up valve

A pressure build-up valve is disclosed which has heightened sensitivity and reduced overall valve size and is adapted to minimize pressure fall-off and to be mounted to a pressurized vessel storing a gas or a liquid. The value is particularly, although not exclusively, designed to build and maintain pressure in cryogenic transportation trailer and storage tanks and is primarily for use with a closed loop liquefied natural gas fluid control system..
President Engineering Group Limited

Flare elimination process and methods of use

Rich natural gas is first compressed, then ambient air cooled and separated into lean natural gas, ngl and water. Hydrate formation during decompression of the lean gas is precluded by either heating the lean natural gas or mixing the lean natural gas with methanol or other additive before depressurization.
Aspen Engineering Services, Llc

Systems and methods for natural gas liquefaction capacity augmentation

Systems and methods for natural gas liquefaction capacity augmentation using supplemental cooling systems and methods to improve the efficiency of a liquefaction cycle for producing liquefied natural gas (lng).. .
Bechtel Hydrocarbon Technology Solutions, Inc.

Method of generating an optimized ship schedule to deliver liquefied natural gas

A system and method is provided for generating an optimized ship schedule to deliver liquefied natural gas (lng) from one or more lng liquefaction terminals to one or more lng regasification terminals using a fleet of ships. The method involves modeling the ship schedule via an lng ship scheduling model and a lng ship rescheduling model to provide optimized decisions for the lng supply chain.

Method of generating an optimized ship schedule to deliver liquefied natural gas

A system and method is provided for generating an optimized ship schedule to deliver liquefied natural gas (lng) from one or more lng liquefaction terminals to one or more lng regasification terminals using a fleet of ships. The method involves modeling the ship schedule via an lng ship scheduling model and a lng ship rescheduling model to provide optimized decisions for the lng supply chain.

Liquefied natural gas production

Hydrocarbon processing systems and a method for liquefied natural gas (lng) production are described herein. The hydrocarbon processing system includes a fluorocarbon refrigeration system configured to cool a natural gas to produce lng using a mixed fluorocarbon refrigerant and a nitrogen rejection unit (nru) configured to remove nitrogen from the lng..

Liquefied gas processing system for ship

Disclosed is a liquefied gas processing system for a ship that includes a storage tank that stores liquefied natural gas, and an engine that uses the liquefied natural gas stored in the storage tank as fuel. The liquefied gas processing system of the present invention comprises: a storage tank that stores liquefied gas; an engine that uses the liquefied gas stored in the storage tank as fuel; and a fuel supply line that can vaporize the liquefied gas and supply the generated gas to the engine as fuel.
Daewoo Shipbuilding & Marine Engineering Co., Ltd.

Integrated nitrogen removal in the production of liquefied natural gas using refrigerated heat pump

A method for liquefying a natural gas feed stream and removing nitrogen therefrom, the method comprising passing a natural gas feed stream through a main heat exchanger to produce a first lng stream, and separating a liquefied or partially liquefied natural gas stream in a distillation column to form nitrogen-rich vapor product, wherein a closed loop refrigeration system provides refrigeration to the main heat exchanger and to a condenser heat exchanger that provides reflux to the distillation column.. .
Air Products And Chemicals, Inc.

Integrated nitrogen removal in the production of liquefied natural gas using intermediate feed gas separation

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 nitrogen-enriched natural gas vapor stream and a nitrogen-depleted natural gas liquid stream, the liquid and vapor streams being reintroduced into an intermediate location of the main heat exchanger and further cooled in parallel to form a first lng stream and a first at least partially liquefied nitrogen-enriched natural gas stream, respectively.. .
Air Products And Chemicals, Inc.

Integrated nitrogen removal in the production of liquefied natural gas using dedicated reinjection circuit

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 passed through main heat exchanger to produce a first lng stream, which is separated to form a nitrogen-depleted lng product and a recycle stream composed of nitrogen-enriched natural gas vapor, and in which the recycle stream is passed through main heat exchanger to produce a first lng stream, separately from and in parallel with the natural gas feed stream, to produce a first at least partially liquefied nitrogen-enriched natural gas stream that is separated to provide a nitrogen-rich vapor product.. .
Air Products And Chemicals, Inc.

System and process for liquefying natural gas

A process of liquefying a natural gas stream in a liquefied natural gas facility is provided. The process includes cooling the natural gas stream in a first refrigeration cycle to produce a cooled natural gas stream.
Conocophillips Company

Liquefied gas treatment system for vessel

Provided is a liquefied gas treatment system for a vessel, which includes a cargo tank storing liquefied natural gas (lng), and an engine using the lng as fuel. The liquefied gas treatment system includes: a compressor line configured to compress boil-off gas (bog) generated in the cargo tank by a compressor and supply the compressed bog to the engine as fuel; a high pressure pump line configured to compress the lng stored in the cargo tank by a pump and supply the compressed lng to the engine as fuel; and a heat exchanger configured to liquefy a part of bog, which is compressed by the compressor, by exchanging heat with bog that is discharged from the cargo tank and transferred to the compressor..
Daewoo Shipbuilding & Marine Engineering Co., Ltd.

Liquefaction of natural gas

Systems and a method for the formation of a liquefied natural gas (lng) are disclosed herein. The system includes a first fluorocarbon refrigeration system configured to chill a natural gas using a first fluorocarbon refrigerant and a second fluorocarbon refrigeration system configured to further chill the natural gas using a second fluorocarbon refrigerant.

Hybrid fuel supply engine of vessel

A hybrid fuel supply system for an engine of a vessel is provided. The hybrid fuel supply system for the engine of the vessel includes: a compression device configured to compress boil-off gas (bog) generated from liquefied natural gas (lng) stored in an lng cargo tank; a high pressure pump configured to compress lng supplied from the lng cargo tank; a vaporizer configured to vaporize the lng compressed by the high pressure pump; and a dual fuel (df) engine to which the bog compressed through the compression device is supplied as fuel.

System and the production of liquefied natural gas

A method for producing liquefied natural gas (lng) and separating natural gas liquids (ngls) from the lng is provided. The method may include compressing natural gas to compressed natural gas, removing a non-hydrocarbon from the compressed natural gas, and cooling the compressed natural gas to a cooled, compressed natural gas.
Dresser-rand Company

Method and in-transit refrigeration

A method and apparatus for providing refrigeration to a space to be refrigerated by contacting air with at least one cryogenic fluid including liquefied natural gas and liquid nitrogen and distributing the air at near cryogenic temperatures to the space to be refrigerated. The air contacts the at least one cryogenic fluid in the at least one heat exchanger before being distributed through a distributor tube into the space to be refrigerated..

Liquefied natural gas facility employing an optimized mixed refrigerant system

Processes and systems for producing liquefied natural gas (lng) with a single mixed refrigerant, closed-loop refrigeration cycle are provided. Liquefied natural gas facilities configured according to embodiments of the present invention include refrigeration cycles optimized to provide increased efficiency and enhanced operability, with minimal additional equipment or expense..
Black & Veatch Corporation

Methods for liquefied natural gas defueling

A method of steps for decanting a cryogenic fluid from a storage tank that is in fluid communication with a back pressure regulator and a decant dewar. A minimum pressure is set for the back pressure regulator and a cryogenic fluid is fed from the storage tank to the back pressure regulator.





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This listing is a sample listing of patent applications related to Liquefied Natural Gas for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Liquefied Natural Gas with additional patents listed. Browse our RSS directory or Search for other possible listings.


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