Disclosed is a liquefied natural gas production train, comprising at least one integrated process unit having a structural frame forming multiple process equipment floors. The at least one integrated process unit extends in vertical direction, wherein a height of the at least one integrated process unit is substantially equal to or larger than a width and a length of the at least one integrated process unit. The disclosure also provides a method of producing liquefied natural gas, using the LNG production train.

The jacking system and method for using it to lower an upper column section without the use of a crane is provided. The jacking system is configured to be disposed on a roof of a cold box module and may include: a structural assembly; and a plurality of suspension rods supported at an upper end by the structural assembly, wherein the plurality of suspension rods is configured to provide support to the upper column section.

A method for constructing a cold box module and resulting apparatus is provided. The method can include providing a cold box module having framing and an upper and lower module sections, introducing an upper column section longitudinally into the upper module section while the upper module section is substantially horizontal; introducing a lower column section longitudinally into the lower module section while the lower module section is substantially horizontal; releasably attaching the lower column section to the lower module section using shipping saddle spacers and support saddles; and attaching a skirt attachment to the lower column section and the lower module section, wherein the skirt attachment is configured to limit longitudinal movement of the lower column section when the lower module section is in a horizontal position during transport. After erecting the cold box module at the installation site, the shipping saddle spacers can be removed and the upper column section is lowered using a jacking system located on the roof of the cold box module.

A method for installation of a cryogenic distillation apparatus is provided. The method can include the steps of: providing an upper module section having an upper column section disposed within and secured to the upper module section, wherein the upper module comprises a roof; providing a lower module section having a lower column section disposed within and secured to the lower module section; erecting the lower module section from a horizontal position to a vertical position at an installation site; lifting the upper module section from a horizontal position and attaching the upper module section, while in a vertical position, to a top portion of the lower module section; lowering the upper column section, independent of the upper module section, toward the lower column section; and welding the upper column section and the lower column section together.

A process for establishing vacuum insulation under cryogenic condition and an apparatus compatible with such process are described. When an insulation enclosure filled with high purity CO.sub.2 is evacuated to around 100 absolute Pa at ambient temperature, hard vacuum of below 1 absolute Pa may be automatically obtained within the insulation enclosure when temperature drops to around or below 170 C. This process can be employed to provide vacuum insulation for cold box housing air separation units operated under cryogenic condition.

A gas liquefaction and/or separation unit comprising at least one chamber, optionally insulated, of slender shape, wherein the chamber is arranged on a first concrete block and the chamber is anchored to the ground by means of at least three stay cables, each connected to a second separate concrete block, the second concrete blocks connected to the stay cables being arranged on the ground at the corners of a polygon, the first and second blocks having a depth below the reference level of the ground not exceeding 1 m.

Disclosed in the present invention are a cold box steel structure and method for prefabricating and transporting the cold box steel structure. The cold box steel structure is a cuboid architecture, and has a long edge, a wide edge and a high edge of lengths L, W and H respectively, wherein L>W and L>H; the cold box steel structure comprises first and second rectangular base faces, each being an outer surface of the cuboid architecture comprising the long edge and the wide edge, and the cold box steel structure is prefabricated as two partial components taking a plane parallel to the rectangular base faces as a boundary; the total height of a first partial cold box steel structure component thereof, taking the first rectangular base face as a first transportation bottom face, is h1, and the total height of a second partial cold box steel structure component, taking the second rectangular base face as a second transportation bottom face, is h2; if the height difference between the transportation bottom face and the ground or a water surface is h, then (h1+h) corresponds to a transportation height of the first partial cold box steel structure component, and (h2+h) corresponds to a transportation height of the second partial cold box steel structure component; the transportation height of either of the cold box steel structure components should be smaller than a maximum permitted transportation height h.sub.max.

The invention relates to a method of using an indirect heat exchanger comprising a plurality of heat exchange modules arranged in a rectangular grid. Each heat exchange module comprises a plurality of first and second fluid flow channels extending in a first and second direction. The indirect heat exchanger comprises first and second manifolds fluidly connecting the first and second fluid flow channels of one heat exchange module with the first and second fluid flow channels of adjacent heat exchange modules thereby forming one or more first fluid paths. The invention also relates to a facility for processing liquefied natural gas including at least one indirect heat exchanger as described above.

A system for sustainable generation of energy, comprising at least one device for converting natural power into useful energy, and at least one internal combustion engine or heat engine. The internal combustion engine or heat engine may be connected to a gas cleaning device for fuel or heat supply. A method for sustainable generation of energy, comprising the steps of generating a first amount of useful energy by converting natural power; and generating a second amount of energy by operating at least one internal combustion engine or heat engine, wherein the internal combustion engine or heat engine is driven by fuel or heat derived from cleaning a waste gas.

A conduit seal assembly includes an outer conduit having a first end with a first opening and a second end, opposite the first end, with a second opening. A first seal is positioned in the first opening for resisting a first temperature, and a second seal is positioned in the second opening for resisting a second temperature less than the first temperature. The first and second seals define a cavity and provide an air-tight seal of the cavity, and the assembly includes a monitoring assembly configured to sense a characteristic in the cavity.