Abstract: Process for efficiently operating a natural gas liquefaction system with integrated heavies removal/natural gas liquids recovery to produce liquefied natural gas (LNG) and/or natural gas liquids (NGL) products.

Abstract: A process and apparatus for liquefying natural gas includes a heavies recovery system. In another aspect, a liquefied natural gas (LNG) facility may employ an ethylene independent heavies recovery system. The recovery system may thus operate relying only on fluid input from upstream of an ethylene refrigeration cycle. A heavies-depleted stream recovered from a liquid withdrawn from a heavies removal column in the heavies recovery system may combine at a location downstream of the heavies removal column with an overhead withdrawn from the heavies removal column for further cooling of such combined stream into liquefied natural gas product.

Abstract: A liquefied natural gas facility employing a heavies removal column having multiple reflux streams. The reflux streams can have different compositions and can be operable to reduce the critical pressure of the fluids within the heavies removal column in order to permit the column to operate at higher pressures without adversely affecting the horsepower requirements of plant compressor/driver systems.

Abstract: A system for removing a contaminant from a refrigerant stream employed in a closed-loop refrigeration cycle of an LNG facility. The system employs a distillation column to separate the refrigerant stream into a contaminant-rich and a contaminant-depleted stream, wherein the contaminant-depleted stream is subsequently returned to the closed-loop refrigeration cycle. The distillation column can include a reboiler and/or condenser. The reboiler and condenser can utilize one or more process streams from within the LNG facility to provide heating and/or cooling to the distillation column.

Abstract: The present invention relates to cryogenic fluids. In another aspect, the present invention relates to additional protection of an apparatus containing equipment capable of operating at cryogenic temperatures and containing cryogenic materials. In one embodiment of the present invention, an apparatus includes a primary enclosure defining an internal volume. The primary enclosure includes primary walls, a primary ceiling, a primary floor, and a vapor venting system. The primary enclosure is fabricated from a low temperature alloy. At least of a portion of the primary floor forms a slope to a hydrocarbon outlet. A perforated plate is located on top of the hydrocarbon outlet. The perforated plate is fabricated from a low temperature alloy. A fire retardant agent applied to the exterior surface of the primary enclosure.

Abstract: This invention relates to a process and apparatus for liquefying natural gas. In another aspect, the invention concerns a liquefied natural gas (LNG) facility employing an ethylene independent heavies recovery system.

Abstract: An LNG facility employing an enhanced fuel gas control system. The enhanced fuel gas control system is operable to produce fuel gas having a substantially constant Modified Wobbe Index (MWI) during start-up and steady-state operation of the LNG facility by processing one or more intermediate process streams in a fuel gas separator. In one embodiment, the fuel gas separator employs a hydrocarbon-separating membrane, which can remove heavy hydrocarbons and/or concentrate nitrogen from the incoming process streams.

Abstract: The present invention relates to cryogenic fluids. In another aspect, the present invention relates to additional protection of an apparatus containing equipment capable of operating at cryogenic temperatures and containing cryogenic materials.

Abstract: The invention relates to a method and apparatus relate for the liquefaction of natural gas. In another aspect, the present invention concerns the deriming the interior surfaces of a cryogenic heat exchanger employed in the liquefaction of natural gas. In another aspect, the present invention concerns the utilization of a pump to derim the interior surfaces of a cryogenic heat exchanger.

Abstract: The present invention relates to a method and an apparatus for liquefying natural gas.

Abstract: The present invention relates to a process and apparatus for liquefying natural gas. In another aspect the present invention relates to the heat recovery from a turbine in a liquefied natural gas facility.

Abstract: A method includes controlling a process control system for coordinating the operation of a liquefied natural gas (LNG) process.

Abstract: The present invention relates to a method and an apparatus for liquefying natural gas.

Abstract: The invention relates to a method and apparatus relate for the liquefaction of natural gas. In another aspect, the present invention concerns the deriming the interior surfaces of a cryogenic heat exchanger employed in the liquefaction of natural gas. In another aspect, the present invention concerns the utilization of a pump to derim the interior surfaces of a cryogenic heat exchanger.

Abstract: Process for efficiently operating a natural gas liquefaction system with integrated heavies removal/natural gas liquids recovery to produce liquefied natural gas (LNG) and/or natural gas liquids (NGL) products.

Abstract: High rate gas stripping for removal of sulfur-containing components such as mercaptans from crude oil may be conducted by feeding sweet gas to the bottom of a tower containing pre-heated mercaptan-containing crude oil feed. The gas bubbles up through the crude becoming enriched with H2S, mercaptans, CO2 and/or hydrocarbons. The rich gas exits the tower, and is treated to produce a sweetened gas, a portion of which is recycled to the tower, and an acid gas. The remainder of the sweetened and/or the acid gas may be used as a fuel or processed to recover a portion of any hydrocarbons that may have been stripped out of the crude oil with the mercaptans, sulfur-containing components, CO2, used for enhanced oil recovery or disposed.

Abstract: An LNG facility employing an enhanced fuel gas control system. The enhanced fuel gas control system is operable to produce fuel gas having a substantially constant Modified Wobbe Index (MWI) during start-up and steady-state operation of the LNG facility by processing one or more intermediate process streams in a fuel gas separator. In one embodiment, the fuel gas separator employs a hydrocarbon-separating membrane, which can remove heavy hydrocarbons and/or concentrate nitrogen from the incoming process streams.

Abstract: A liquefied natural gas facility employing a heavies removal column having multiple reflux streams. The reflux streams can have different compositions and can be operable to reduce the critical pressure of the fluids within the heavies removal column in order to permit the column to operate at higher pressures without adversely affecting the horsepower requirements of plant compressor/driver systems.

Abstract: An LNG facility capable of producing a domestic gas product from an intermediate stream in the LNG facility. Withdrawing the domestic gas product from a location within the LNG facility can minimize operational disturbances typically caused by extracting a domestic gas product stream upstream of the liquefaction portion of the LNG facility. In addition, withdrawing the domestic gas product from this location can provide increased control of light contaminants (e.g., nitrogen) in open-loop refrigeration cycles and can ultimately result in incremental LNG and/or NGL production.

Abstract: A method of increasing the production rate and operational flexibility of an LNG facility by overfiring one or more modular gas turbines employed to drive one or more refrigerant compressors in the LNG facility.