公开(公告)号：WO2005065209A2

公开(公告)日：2005-07-21

申请号：PCT/US2004042428

申请日：2004-12-20

Applicant: PRAXAIR TECHNOLOGY INC ,  PROSSER NEIL MARK ,  RANKIN PETER JAMES

Inventor： PROSSER NEIL MARK ,  RANKIN PETER JAMES

IPC: F25J3/04

CPC classification number: F25J3/0403 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04812 ,  F25J2200/20 ,  F25J2200/54 ,  F25J2230/24 ,  F25J2240/04 ,  F25J2245/42

Abstract: A cryogenic air separation system for producing elevated pressure nitrogen wherein a portion of the nitrogen product fed to the product compressor (110) downstream of the primary heat exchanger (101) is withdrawn as refrigerant nitrogen from the product compressor (110), preferably from an intermediate point of the product compressor (110), and turboexpanded to generate refrigeration for the system.

Abstract translation: 一种用于产生高压氮的低温空气分离系统，其中供应到主热交换器（101）下游的产品压缩机（110）的一部分氮产品从制冷剂氮气从产品压缩机（110）中排出，优选地从 产品压缩机（110）的中间点，并且涡轮膨胀以产生用于该系统的制冷。

公开(公告)号：WO2007055954A3

公开(公告)日：2007-07-26

申请号：PCT/US2006042373

申请日：2006-10-31

Applicant: PRAXAIR TECHNOLOGY INC ,  RANKIN PETER JAMES ,  PROSSER NEIL MARK

Inventor： RANKIN PETER JAMES ,  PROSSER NEIL MARK

IPC: F25J3/04

CPC classification number: F25J3/04387 ,  F25J3/0409 ,  F25J3/04187 ,  F25J3/04315 ,  F25J3/04448 ,  F25J2200/20 ,  F25J2200/50 ,  F25J2200/54 ,  F25J2240/10 ,  F25J2290/12

Abstract: A process for carrying out cryogenic air separation wherein liquid oxygen (30) is pressurized (112) and vaporized against condensing feed air (5) to produce oxygen gas product (42) wherein excess plant refrigeration is generated such that the aggregate warm end temperature difference of the process exceeds the minimum internal temperature difference of the primary heat exchanger (101) by at least 2K.

Abstract translation: 一种进行低温空气分离的方法，其中液态氧（30）被加压（112）并被汽化以防止冷凝进料空气（5）以产生氧气产品（42），其中产生过量的设备冷却，使得总温端温度差 过程超过主换热器（101）的最小内部温差至少2K。

公开(公告)号：WO2008076957A2

公开(公告)日：2008-06-26

申请号：PCT/US2007/087712

申请日：2007-12-17

Applicant: PRAXAIR TECHNOLOGY, INC. ,  ZHONG, Guoming ,  RANKIN, Peter, James ,  ACKLEY, Mark, William

Inventor： ZHONG, Guoming ,  RANKIN, Peter, James ,  ACKLEY, Mark, William

CPC classification number: C01B3/06 ,  B01D53/0473 ,  B01D2253/108 ,  B01D2253/304 ,  B01D2256/12 ,  B01D2257/102 ,  C01B3/38 ,  C01B3/503 ,  C01B3/505 ,  C01B2203/0233 ,  C01B2203/0405 ,  C01B2203/066 ,  C01B2203/1047 ,  C01B2203/1064 ,  C01B2203/107 ,  C01B2203/1076 ,  C01B2203/1082 ,  C01B2203/1223 ,  Y02E60/36

Abstract: An improved gas separation PSA process, more particularly for oxygen production, utilizing adsorbents of Type X characterized by high frequency (i.e., cycle times of less than 4 s), bed length to square of mean particle diameter ratio within 200 to 600 mm"1, bed size factor of less than 50 lb/TPDO. The bed length, mean particle size, and cycle time are selected in a range such that axial dispersion becomes an important factor. In this way, low product recovery and high pressure drop (high power consumption) disadvantages often associated with the use of small particles are overcome.

Abstract translation: 改进的气体分离PSA方法，更特别地用于氧气生产，利用以高频（即，小于4s的循环时间）为特征的X型吸附剂，平均粒径比在200至600mm -1内的床长与平方 ，床尺寸系数小于50lb / TPDO，床长，平均粒径和循环时间在轴向分散成为重要因素的范围内选择，这样，低产品回收率和高压降（高 功耗）通常与使用小颗粒相关的缺点克服。

公开(公告)号：WO2007055954A2

公开(公告)日：2007-05-18

申请号：PCT/US2006/042373

申请日：2006-10-31

Applicant: PRAXAIR TECHNOLOGY, INC. ,  RANKIN, Peter, James ,  PROSSER, Neil, Mark

Inventor： RANKIN, Peter, James ,  PROSSER, Neil, Mark

CPC classification number: F25J3/04387 ,  F25J3/0409 ,  F25J3/04187 ,  F25J3/04315 ,  F25J3/04448 ,  F25J2200/20 ,  F25J2200/50 ,  F25J2200/54 ,  F25J2240/10 ,  F25J2290/12

Abstract: A process for carrying out cryogenic air separation wherein liquid oxygen (30) is pressurized (112) and vaporized against condensing feed air (5) to produce oxygen gas product (42) wherein excess plant refrigeration is generated such that the aggregate warm end temperature difference of the process exceeds the minimum internal temperature difference of the primary heat exchanger (101) by at least 2K.

Abstract translation: 一种用于进行低温空气分离的方法，其中液氧（30）被加压（112）并蒸发成冷凝进料空气（5）以产生氧气产物（42），其中产生过量的工厂制冷，使得总体温度结束温度差 的过程超过主热交换器（101）的最小内部温度差异至少2K。

公开(公告)号：WO2008076957A3

公开(公告)日：2008-09-18

申请号：PCT/US2007087712

申请日：2007-12-17

Applicant: PRAXAIR TECHNOLOGY INC ,  ZHONG GUOMING ,  RANKIN PETER JAMES ,  ACKLEY MARK WILLIAM

Inventor： ZHONG GUOMING ,  RANKIN PETER JAMES ,  ACKLEY MARK WILLIAM

IPC: A61M16/10 ,  B01D53/047 ,  C01B13/02

CPC classification number: C01B3/06 ,  B01D53/0473 ,  B01D2253/108 ,  B01D2253/304 ,  B01D2256/12 ,  B01D2257/102 ,  C01B3/38 ,  C01B3/503 ,  C01B3/505 ,  C01B2203/0233 ,  C01B2203/0405 ,  C01B2203/066 ,  C01B2203/1047 ,  C01B2203/1064 ,  C01B2203/107 ,  C01B2203/1076 ,  C01B2203/1082 ,  C01B2203/1223 ,  Y02E60/36

Abstract: An improved gas separation PSA process, more particularly for oxygen production, utilizing adsorbents of Type X characterized by high frequency (i.e., cycle times of less than 4 s), bed length to square of mean particle diameter ratio within 200 to 600 mm 1, bed size factor of less than 50 lb/TPDo ( 0.5 kg sorbent/kg/h O 2 ).The bed length, mean particle size, and cycle time are selected in a range such that axial dispersion becomes an important factor. In this way, low product recovery and high pressure drop (high power consumption) disadvantages often associated with the use of small particles are overcome.

Abstract translation: 改进的气体分离PSA方法，更特别地用于氧气生产，利用以高频率（即，小于4s的循环时间）为特征的X型吸附剂，平均粒径比的平均长度在200至600mm 1内， 床尺寸系数小于50lb / TPDo（0.5kg吸附剂/ kg / h O 2 2）。床长，平均粒度和循环时间在使轴向分散变为 一个重要因素。 以这种方式，克服了与使用小颗粒相关的低产品回收率和高压降（高功率消耗）缺点。

公开(公告)号：WO2005065209A3

公开(公告)日：2005-07-21

申请号：PCT/US2004/042428

申请日：2004-12-20

Applicant: PRAXAIR TECHNOLOGY, INC. ,  PROSSER, Neil, Mark ,  RANKIN, Peter, James

Inventor： PROSSER, Neil, Mark ,  RANKIN, Peter, James

IPC: F25J3/00

Abstract: A cryogenic air separation system for producing elevated pressure nitrogen wherein a portion of the nitrogen product fed to the product compressor (110) downstream of the primary heat exchanger (101) is withdrawn as refrigerant nitrogen from the product compressor (110), preferably from an intermediate point of the product compressor (110), and turboexpanded to generate refrigeration for the system.