公开(公告)号：US10012438B2

公开(公告)日：2018-07-03

申请号：US15057148

申请日：2016-03-01

申请人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

发明人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

IPC分类号： F25J1/00 ,  F25J3/04 ,  B01D53/047

CPC分类号： F25J3/04733 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2253/116 ,  B01D2257/11 ,  F25J3/0409 ,  F25J3/04096 ,  F25J3/04103 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04739 ,  F25J3/04884 ,  F25J3/04939 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2270/02 ,  F25J2290/34

摘要： A method and apparatus for argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit having a divided wall argon rejection/rectification column. The resulting argon stream is subsequently recovered and purified within an integrated pressure swing adsorption system to produce product grade argon.

公开(公告)号：US20170030642A1

公开(公告)日：2017-02-02

申请号：US15057148

申请日：2016-03-01

申请人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

发明人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

IPC分类号： F25J3/04 ,  B01D53/047

CPC分类号： F25J3/04733 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2253/116 ,  B01D2257/11 ,  F25J3/0409 ,  F25J3/04096 ,  F25J3/04103 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04739 ,  F25J3/04884 ,  F25J3/04939 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2270/02 ,  F25J2290/34

摘要： A method and apparatus for argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit having a divided wall argon rejection/rectification column. The resulting argon stream is subsequently recovered and purified within an integrated pressure swing adsorption system to produce product grade argon.

公开(公告)号：US10012437B2

公开(公告)日：2018-07-03

申请号：US15057152

申请日：2016-03-01

申请人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

发明人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

IPC分类号： F25J3/04 ,  B01D53/047 ,  C01B23/00

CPC分类号： F25J3/04412 ,  B01D53/047 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/104 ,  C01B23/0036 ,  C01B23/0078 ,  C01B2210/0034 ,  C01B2210/0045 ,  C01B2210/0048 ,  F25J3/0409 ,  F25J3/04096 ,  F25J3/04103 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04678 ,  F25J3/04733 ,  F25J3/04739 ,  F25J3/04884 ,  F25J3/04939 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2270/02 ,  F25J2290/34

摘要： A method and apparatus for argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit having a divided wall argon rejection/rectification column. The resulting argon stream is subsequently recovered and purified within an integrated pressure swing adsorption system to produce product grade argon.

公开(公告)号：US20170030639A1

公开(公告)日：2017-02-02

申请号：US15057152

申请日：2016-03-01

申请人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

发明人： Hai Du ,  Neil M. Prosser ,  Yang Luo ,  Neil A. Stephenson

IPC分类号： F25J3/04 ,  F25J3/02 ,  B01D53/047

CPC分类号： F25J3/04412 ,  B01D53/047 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/104 ,  C01B23/0036 ,  C01B23/0078 ,  C01B2210/0034 ,  C01B2210/0045 ,  C01B2210/0048 ,  F25J3/0409 ,  F25J3/04096 ,  F25J3/04103 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04678 ,  F25J3/04733 ,  F25J3/04739 ,  F25J3/04884 ,  F25J3/04939 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2270/02 ,  F25J2290/34

摘要： A method and apparatus for argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit having a divided wall argon rejection/rectification column. The resulting argon stream is subsequently recovered and purified within an integrated pressure swing adsorption system to produce product grade argon.

摘要翻译： 一种用于氩气回收的方法和装置，其中不纯的氩气流在具有分隔壁氩排斥/精馏塔的低温空气分离单元内与空气分离。 随后将所得氩气流在集成的变压吸附系统中回收和纯化，以产生产品级氩气。

公开(公告)号：US10018413B2

公开(公告)日：2018-07-10

申请号：US15057156

申请日：2016-03-01

申请人： Hai Du ,  Neil A. Stephenson ,  Neil M. Prosser

发明人： Hai Du ,  Neil A. Stephenson ,  Neil M. Prosser

IPC分类号： F25J3/02 ,  F25J3/04 ,  B01D53/047

CPC分类号： F25J3/04412 ,  B01D3/141 ,  B01D53/047 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/104 ,  F25J3/0409 ,  F25J3/04096 ,  F25J3/04103 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04678 ,  F25J3/04733 ,  F25J3/04739 ,  F25J3/04884 ,  F25J3/04939 ,  F25J2200/80 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2270/02 ,  F25J2290/34

摘要： A method and apparatus for increasing argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit and purified within an integrated, multi-stage pressure swing adsorption system to produce product grade argon with high argon recovery levels.

公开(公告)号：US20170030640A1

公开(公告)日：2017-02-02

申请号：US15057156

申请日：2016-03-01

申请人： Hai Du ,  Neil A. Stephenson ,  Neil M. Prosser

发明人： Hai Du ,  Neil A. Stephenson ,  Neil M. Prosser

IPC分类号： F25J3/04 ,  F25J3/02 ,  B01D53/047

CPC分类号： F25J3/04412 ,  B01D53/047 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/104 ,  F25J3/0409 ,  F25J3/04096 ,  F25J3/04103 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04678 ,  F25J3/04733 ,  F25J3/04739 ,  F25J3/04884 ,  F25J3/04939 ,  F25J2200/80 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2270/02 ,  F25J2290/34

摘要： A method and apparatus for increasing argon recovery in which an impure argon stream is separated from air within a cryogenic air separation unit and purified within an integrated, multi-stage pressure swing adsorption system to produce product grade argon with high argon recovery levels.

摘要翻译： 一种用于增加氩气回收的方法和装置，其中不纯的氩气流与低温空气分离装置内的空气分离，并在集成的多级变压吸附系统内纯化，以产生具有高氩回收水平的产品级氩气。

公开(公告)号：US20220146195A1

公开(公告)日：2022-05-12

申请号：US17580830

申请日：2022-01-21

申请人： Neil M. Prosser ,  Yang Luo ,  Richard D. Lenz ,  Kevin J. Saboda

发明人： Neil M. Prosser ,  Yang Luo ,  Richard D. Lenz ,  Kevin J. Saboda

IPC分类号： F25J3/04

摘要： A method for flexible production of argon from a cryogenic air separation unit is provided. The disclosed cryogenic air separation unit is capable of operating in a ‘no-argon’ or ‘low-argon’ mode when argon demand is low or non-existent and then switching to operating in a ‘high-argon’ mode when argon is needed. The recovery of the argon products from the air separation unit is adjusted by varying the percentages of dirty shelf nitrogen and clean shelf nitrogen in the reflux stream directed to the lower pressure column. The cryogenic air separation unit and associated method also provides an efficient argon production/rejection process that minimizes the power consumption when the cryogenic air separation unit is operating in a ‘no-argon’ or ‘low-argon’ mode yet maintains the capability to produce higher volumes of argon products at full design capacity to meet argon product demands.

公开(公告)号：US20210372696A1

公开(公告)日：2021-12-02

申请号：US17229910

申请日：2021-04-14

申请人： Zhengrong Xu ,  Neil M. Prosser

发明人： Zhengrong Xu ,  Neil M. Prosser

IPC分类号： F25J3/02 ,  F25J1/00 ,  F25J3/04 ,  F25J5/00

摘要： Enhancements to a dual column, nitrogen producing cryogenic air separation unit are provided. Such enhancements include an improved air separation cycle that uses three condenser-reboilers and recycles a portion of the vapor from one or more of the condenser-reboilers to the incoming feed stream and or the compressed purified air streams to yield improvements in the performance of such dual column, nitrogen producing cryogenic air separation units in terms of overall nitrogen recovery as well as power consumption.

公开(公告)号：US20210348837A1

公开(公告)日：2021-11-11

申请号：US17120376

申请日：2020-12-14

申请人： Neil M. Prosser

发明人： Neil M. Prosser

IPC分类号： F25J1/00

摘要： Liquefier arrangements configured for co-production of both liquid natural gas (LNG) and liquid nitrogen (LIN) configured to operate in two distinct operating modes are provided.

公开(公告)号：US10969168B2

公开(公告)日：2021-04-06

申请号：US16742965

申请日：2020-01-15

申请人： Brian R. Kromer ,  James R. Handley ,  Neil M. Prosser

发明人： Brian R. Kromer ,  James R. Handley ,  Neil M. Prosser

IPC分类号： F25J3/02 ,  F25J3/04

摘要： A moderate pressure air separation unit and air separation cycle is disclosed that provides for up to about 96% recovery of argon, an overall nitrogen recovery of 98 percent or greater and limited gaseous oxygen production. The air separation is configured to produce a first high purity oxygen enriched stream and a second lower purity oxygen enriched stream from the lower pressure column, one of which is used as the refrigerant to condense the argon in the argon condenser, with the resulting vaporized oxygen stream used to regenerate the temperature swing adsorption pre-purifier unit. All or a portion of the first high purity oxygen enriched stream is vaporized in the main heat exchanger to produce the gaseous oxygen products.