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    Apparatus for distillation at cryogenic temperatures
    1.
    发明授权
    Apparatus for distillation at cryogenic temperatures 有权

    公开(公告)号：US10914518B2

    公开(公告)日：2021-02-09

    申请号：US15952016

    申请日：2018-04-12

    申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

    发明人： Gilles Poulin ,  Yves Hardy ,  Claude Granger ,  Yoland Plamondon ,  Minh Huy Pham ,  May Yee Wendy Yip

    IPC分类号： F25J3/04 ,  B65D90/02

    摘要： An apparatus for distillation at cryogenic temperatures can include a cold box module comprising framing and having an upper module section and a lower module section, wherein the upper module comprises a roof; an upper column section disposed within the upper module section; a lower column section disposed within the lower module section; a plurality of support saddles attached to the upper and lower module sections that are configured to provide structural support for the upper and lower column sections when the upper and lower column sections are in a horizontal position during transportation; and means for limiting longitudinal movement of the lower column section when the lower module section is in a horizontal position during transport, wherein the means for limiting longitudinal movement are connected to the lower column section and the lower module section.

    Method for constructing a cold box module
    2.
    发明授权
    Method for constructing a cold box module 有权

    公开(公告)号：US10746462B2

    公开(公告)日：2020-08-18

    申请号：US15952023

    申请日：2018-04-12

    申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

    发明人： Gilles Poulin ,  Yves Hardy ,  Claude Granger ,  Yoland Plamondon ,  Minh Huy Pham ,  May Yee Wendy Yip

    IPC分类号： F25J3/04 ,  B65D90/02

    摘要： 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.

    Method and apparatus for reducing process disturbances during pressurization of an adsorber in an air separation unit
    3.
    发明授权
    Method and apparatus for reducing process disturbances during pressurization of an adsorber in an air separation unit 有权

    公开(公告)号：US11029086B2

    公开(公告)日：2021-06-08

    申请号：US16229473

    申请日：2018-12-21

    申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

    发明人： Paul Kong ,  Minh Huy Pham

    IPC分类号： B01D53/04 ,  B01D53/053 ,  F25J3/04 ,  B01D53/047

    摘要： A method for reducing process disturbances during pressurization of an adsorber in an air separation unit is provided, in which the air separation unit includes a front end purification unit and an air buffer tank. In one embodiment, the method can include the steps of: pressurizing a first adsorber while a second adsorber operates in an adsorption cycle, wherein the step of pressurizing the first adsorber further includes the steps of withdrawing a pressurized air stream from the air buffer tank and introducing the pressurized air stream to the first adsorber until the first adsorber is at a target pressure, wherein the air buffer tank is in fluid communication with the booster air compressor, wherein the method further includes the step of continually sending a first portion of air flow from the booster air compressor to the air buffer tank and continually sending a second portion of air flow from the booster air compressor to a system of columns within a cold box for rectification therein.

    Method and apparatus for eliminating heat bumps following regeneration of adsorbers in an air separation unit
    4.
    发明授权
    Method and apparatus for eliminating heat bumps following regeneration of adsorbers in an air separation unit 有权

    公开(公告)号：US11137205B2

    公开(公告)日：2021-10-05

    申请号：US16229481

    申请日：2018-12-21

    申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

    发明人： Paul Kong ,  Minh Huy Pham

    IPC分类号： F25J3/04 ,  B01D53/04

    摘要： A method for reducing heat bumps following regeneration of adsorbers in an air separation unit is provided. The air separation unit can include a front end purification unit, a main air compressor, a main heat exchanger, a distillation column system, a regeneration gas heater, and a regeneration gas cooler, wherein the front end purification unit comprises a first adsorber and a second adsorber. The method can include the steps of: regenerating the first adsorber while the second adsorber operates in an adsorption cycle, wherein the step of regenerating the first adsorber further includes the steps of heating the first adsorber and then cooling the first adsorber, wherein during the step of cooling the first adsorber, a regeneration gas sourced from the distillation column system and cooled in the main heat exchanger is further cooled in a regeneration gas cooler prior to being used to cool the first adsorber.