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1. 发明公开

US20230168030A1 PROCESS FOR CRYOGENIC FRACTIONATION OF AIR, AIR FRACTIONATION PLANT AND INTEGRATED SYSTEM COMPOSED OF AT LEAST TWO AIR FRACTIONATION PLANTS 审中-公开
公开(公告)号：US20230168030A1
公开(公告)日：2023-06-01
申请号：US17995456
申请日：2021-04-06
申请人： Linde GmbH
发明人： Dimitri GOLUBEV
IPC分类号： F25J3/04
CPC分类号： F25J3/04351 , F25J3/04315 , F25J3/04412 , F25J3/04018 , F25J3/0403 , F25J3/0409 , F25J3/04096 , F25J3/04145 , F25J3/04715 , F25J3/04727 , F25J3/04878 , F25J3/04963 , F25J2200/20 , F25J2200/06 , F25J2200/34 , F25J2215/52 , F25J2215/56 , F25J2235/04 , F25J2245/42 , F25J2245/50
摘要： The invention relates to a process for cryogenic fractionation of air using an air fractionation plant comprising a rectification column system comprising a high-pressure column operated at a pressure level of 9 to 14.5 bar, a low-pressure column operated at a pressure level of 2 to 5 bar, and an argon column. It is envisaged that a recirculating stream is formed using the second tops gas or a portion thereof, which is heated, compressed, cooled again, and after partial or complete liquefaction or in the unliquefied state is introduced partially or completely, or in fractions, into the first rectification column and/or into the second rectification column. The present invention also relates to a corresponding system.

2. 发明申请

US20170284735A1 AIR SEPARATION REFRIGERATION SUPPLY METHOD 审中-公开
公开(公告)号：US20170284735A1
公开(公告)日：2017-10-05
申请号：US15626329
申请日：2017-06-19
申请人： Henry Edward Howard
发明人： Henry Edward Howard
IPC分类号： F25J1/00 , F25J3/04 , F25J1/02
CPC分类号： F25J1/0234 , F25J1/0015 , F25J1/0037 , F25J1/004 , F25J1/0202 , F25J3/0409 , F25J3/04224 , F25J3/04254 , F25J3/04296 , F25J3/04357 , F25J3/04393 , F25J3/04412 , F25J3/04963 , F25J2210/42 , F25J2270/06
摘要： A method of supplying refrigeration to air separation plants within an air separation plant facility in which a refrigerant stream is produced at cryogenic temperature within a centralized refrigeration system. Streams of the refrigerant at the cryogenic temperature are introduced into the air separation plants such that all or a part of the refrigeration requirements of the air separation plants are supplied by the streams of the refrigerant.

3. 发明申请

US20150323247A1 HEAT EXCHANGER ASSEMBLY AND SYSTEM FOR A CRYOGENIC AIR SEPARATION UNIT 审中-公开
标题翻译：热交换器组件和系统用于低温空气分离单元
公开(公告)号：US20150323247A1
公开(公告)日：2015-11-12
申请号：US14271697
申请日：2014-05-07
申请人： Maulik R. Shelat , Karl K. Kibler , Rachel M. Hohl
发明人： Maulik R. Shelat , Karl K. Kibler , Rachel M. Hohl
IPC分类号： F25J3/04
CPC分类号： F25J3/0423 , F25J3/04963 , F25J5/002 , F25J2290/34 , F25J2290/50 , F28D7/0066 , F28D9/0093 , F28D2021/0033
摘要： A sub-cooler type heat exchanger assembly and system for use in a cryogenic air separation plant is provided. The sub-cooler type heat exchanger includes at least two separate heat exchange segments within the same housing or shell and is configured to concurrently cool two or more upward flowing cryogenic liquids using nitrogen-rich streams from the lower pressure distillation column.
摘要翻译：提供了一种用于低温空气分离装置的副冷却器型热交换器组件和系统。副冷却器型热交换器在相同壳体或外壳内包括至少两个单独的热交换段，并且构造成使用来自低压蒸馏塔的富氮流同时冷却两个或更多个向上流动的低温液体。

4. 发明授权

US08640496B2 Method and apparatus for separating air 有权
标题翻译：用于分离空气的方法和装置
公开(公告)号：US08640496B2
公开(公告)日：2014-02-04
申请号：US12195450
申请日：2008-08-21
申请人： Henry Edward Howard
发明人： Henry Edward Howard
IPC分类号： F25J3/00
CPC分类号： F25J3/0486 , F25J3/0409 , F25J3/04296 , F25J3/04303 , F25J3/04412 , F25J3/04963 , F25J2200/54 , F25J2210/50 , F25J2215/50 , F25J2245/50
摘要： Air separation method in which air is separated within cryogenic rectification processes conducted in first and second cryogenic air separation plants. The first cryogenic air separation plant is designed to produce an oxygen-rich product stream and the second cryogenic air separation plant is designed to produce an impure oxygen vapor stream. At least part of the impure oxygen vapor stream is introduced into a lower pressure column of the first cryogenic air separation plant and oxygen contained in such stream along with air separated within the first air separation plant is used in producing the oxygen-rich product stream.
摘要翻译：在第一和第二低温空气分离装置中进行的低温精馏过程中分离空气的空气分离方法。第一个低温空气分离设备被设计成产生富氧产物流，第二低温空气分离设备被设计成产生不纯的氧蒸气流。至少部分不纯的氧蒸气流被引入第一低温空气分离设备的低压塔中，并且在第一空气分离设备中分离的空气与该流体中所含的氧被用于生产富氧产物流。

5. 发明申请

US20100058805A1 AIR SEPARATION REFRIGERATION SUPPLY METHOD 有权
标题翻译：空气分离制冷供应方法
公开(公告)号：US20100058805A1
公开(公告)日：2010-03-11
申请号：US12207757
申请日：2008-09-10
申请人： HENRY EDWARD HOWARD
发明人： HENRY EDWARD HOWARD
IPC分类号： F25J3/00
CPC分类号： F25J1/0234 , F25J1/0015 , F25J1/0037 , F25J1/004 , F25J1/0202 , F25J3/0409 , F25J3/04224 , F25J3/04254 , F25J3/04296 , F25J3/04357 , F25J3/04393 , F25J3/04412 , F25J3/04963 , F25J2210/42 , F25J2270/06
摘要： A method of supplying refrigeration to air separation plants within an air separation plant facility in which a refrigerant stream is produced at cryogenic temperature within a centralized refrigeration system. Streams of the refrigerant at the cryogenic temperature are introduced into the air separation plants such that all or a part of the refrigeration requirements of the air separation plants are supplied by the streams of the refrigerant.
摘要翻译：在空气分离设备设备内的空气分离设备中供应制冷剂的方法，其中在中央制冷系统内在低温下生产制冷剂流。在低温温度下的制冷剂流被引入到空气分离设备中，使得空气分离设备的全部或部分制冷要求由制冷剂流供应。

6. 发明授权

US07143606B2 Combined air separation natural gas liquefaction plant 有权
标题翻译：联合空分天然气液化站
公开(公告)号：US07143606B2
公开(公告)日：2006-12-05
申请号：US10681632
申请日：2003-10-08
申请人： Jean-Pierre Tranier
发明人： Jean-Pierre Tranier
IPC分类号： F25J1/00 , F25J3/00
CPC分类号： F25J3/04218 , F25J1/0022 , F25J1/0042 , F25J1/005 , F25J1/0052 , F25J1/007 , F25J1/0087 , F25J1/0204 , F25J1/0205 , F25J1/0221 , F25J1/0222 , F25J1/0234 , F25J1/0236 , F25J3/0409 , F25J3/04127 , F25J3/04157 , F25J3/04224 , F25J3/04296 , F25J3/04345 , F25J3/04387 , F25J3/04412 , F25J3/04539 , F25J3/04606 , F25J3/04612 , F25J3/04963 , F25J2210/42 , F25J2210/50 , F25J2210/60 , F25J2240/10 , F25J2270/90 , F25J2270/906
摘要： In an integrated process and apparatus for the separation of air by cryogenic distillation and liquefaction of natural gas in which at least part of the refrigeration required to liquefy the natural gas is derived from at least one cryogenic air distillation plant comprising a main heat exchanger (7) and distillation columns (15, 17), wherein the natural gas (25) liquefies by indirect heat exchange in a heat exchanger (7, 32, 34) with a cold fluid (21, 26), the cold fluid being sent to the heat exchanger at least partially in liquid form and undergoing at least a partial vaporisation in the heat exchanger.
摘要翻译：在通过低温蒸馏和天然气液化分离空气的综合方法和装置中，其中使天然气液化所需的至少一部分制冷是由至少一个包括主热交换器（7）的低温空气蒸馏设备得到的）和蒸馏塔（15,17），其中天然气（25）通过在具有冷流体（21,26）的热交换器（7,32,34）中间接热交换而液化，冷流体被送到至少部分为液体形式的热交换器，并且在热交换器中经历至少部分蒸发。

7. 发明申请

US20060225462A1 Method of controlling liquid production utilizing an expert system controller 失效
标题翻译：利用专家系统控制器控制液体生产的方法
公开(公告)号：US20060225462A1
公开(公告)日：2006-10-12
申请号：US11100428
申请日：2005-04-07
申请人： William Esposito , Lawrence Megan
发明人： William Esposito , Lawrence Megan
IPC分类号： F25J3/00
CPC分类号： F25J3/04848 , F25J3/04963 , F25J2290/62 , G05B13/0295 , Y10S706/90
摘要： Method for controlling the production of one or more liquid products produced by one or more plants, that can be an air separation plant, that has a liquid storage capacity and that consumes electrical power. Linguistic values related to current liquid inventory, a rate of change of liquid inventory, projected demand requirements and projected unit power costs are inputted into a expert system controller having one or more rule sets that apply such input linguistic values to produce output linguistic values that are converted back to an output numerical value of a forecasted differential production rate to be applied during a forecast period. The output numerical value of differential production is added to the current production rate of the plants to obtain a new production rate which is applied during the forecast period.
摘要翻译：用于控制由一个或多个工厂生产的一种或多种液体产品的生产方法，其可以是具有液体储存能力并且消耗电力的空气分离设备。与当前液体库存相关的语言价值，液体库存的变化率，预计需求需求和预计的单位功率成本被输入到具有一个或多个规则集的专家系统控制器中，所述规则集应用这样的输入语言值以产生输出语言值转换为在预测期间应用的预测差异生产率的输出数值。差异生产的产值数值加上目前的工厂生产率，以获得在预测期内应用的新生产率。

8. 发明授权

US06871513B2 Process and installation for separation of air by cryogenic distillation integrated with an associated process 有权
标题翻译：通过与相关工艺集成的低温蒸馏分离空气的过程和安装
公开(公告)号：US06871513B2
公开(公告)日：2005-03-29
申请号：US10415835
申请日：2001-10-29
申请人： Alain Guillard
发明人： Alain Guillard
IPC分类号： F25J3/04 , F25J3/00
CPC分类号： F25J3/04218 , F25J3/04018 , F25J3/04054 , F25J3/04121 , F25J3/04145 , F25J3/04187 , F25J3/04296 , F25J3/04539 , F25J3/046 , F25J3/04612 , F25J3/04618 , F25J3/04824 , F25J3/04836 , F25J3/04963 , F25J2215/02 , F25J2215/40 , F25J2215/50 , F25J2235/50 , F25J2240/20 , F25J2240/70 , F25J2240/90 , F25J2245/50 , F25J2250/50 , F25J2290/12
摘要： In a process for separation of air by cryogenic distillation integrated with an associated process, air is separated in a separation unit (1), fluid is sent from the separation unit to an associated process, steam (3) is derived from the associated process, at least part of the steam is used in the separation unit and at least one fluid stream (11) is sent from the air separation unit to the atmosphere, at least when the steam is used in the air separation unit.
摘要翻译：在通过与相关工艺相结合的低温蒸馏来分离空气的过程中，空气在分离单元（1）中分离，流体从分离单元被输送到相关联的过程，蒸汽（3）源自相关联的方法，至少部分蒸汽在分离单元中使用，并且至少一个流体流（11）从空气分离单元输送到大气中，至少在空气分离单元中使用蒸汽时。

9. 发明授权

US5421164A Process and installation for the production of ultra-pure nitrogen under pressure 失效
标题翻译：在压力下生产超纯氮的工艺和安装
公开(公告)号：US5421164A
公开(公告)日：1995-06-06
申请号：US132301
申请日：1993-10-06
申请人： Jean-Renaud Brugerolle
发明人： Jean-Renaud Brugerolle
IPC分类号： C01B21/04 , F25J3/04 , F25J3/08 , F25J3/00
CPC分类号： F25J3/08 , C01B21/04 , F25J3/04242 , F25J3/0426 , F25J3/044 , F25J3/04963 , F25J2200/02 , F25J2200/72 , F25J2205/40 , F25J2205/84 , F25J2210/42 , F25J2215/44 , F25J2250/42 , F25J2290/62
摘要： According to this process, there is produced gaseous nitrogen of medium purity under substantially the production pressure. This nitrogen is sent to the base of a distillation column (11) provided with a head condenser (23). The head condenser is cooled by means of liquid in the base of the low pressure column and if desired the liquid nitrogen at medium purity contained in a reservoir (10). Ultra-pure nitrogen is withdrawn as a product from the head of the column, and during periods of no production of nitrogen of medium purity and during periods in which the demand for ultra-pure nitrogen exceeds this production, there is sent to the base of the column gaseous reserve nitrogen of medium purity obtained from the liquid nitrogen of the reservoir and there is sent into the head condenser a relatively large flow of liquid nitrogen from this reservoir.
摘要翻译：根据该方法，在生产压力基本上产生中等纯度的气态氮。将该氮气送至设置有头冷凝器（23）的蒸馏塔（11）的基部。头冷凝器通过液体冷却在低压塔的底部，如果需要，中等纯度的液氮包含在储存器（10）中。超纯氮作为柱头的产物被取出，在不生产中等纯度的氮的时期，在超纯氮的需求超过这种生产的期间，被送到从储层的液氮获得的中等纯度的柱状气体储备氮，并从该储存器送入头冷凝器中较大量的液氮。

10. 发明授权

US5161380A Cryogenic rectification system for enhanced argon production 失效
标题翻译：低温精馏系统，用于提高氩气产量
公开(公告)号：US5161380A
公开(公告)日：1992-11-10
申请号：US743734
申请日：1991-08-12
申请人： Harry Cheung
发明人： Harry Cheung
IPC分类号： C01B23/00 , F25J3/04
CPC分类号： F25J3/04963 , F25J3/04412 , F25J3/04678 , F25J2210/04 , F25J2210/58 , F25J2245/58 , Y10S62/924
摘要： A cryogenic rectification system comprising two cryogenic rectification plants wherein a fluid mixture comprising argon and nitrogen is withdrawn in a defined manner from the first plant and passed into the second plant such that argon production is enhanced to more than offset the additional separation power requirements.

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