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1. 发明授权

US09920988B2 Main heat exchange system and method for reboiling 有权
公开(公告)号：US09920988B2
公开(公告)日：2018-03-20
申请号：US15242961
申请日：2016-08-22
申请人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
发明人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
IPC分类号： F25J3/04 , F25J5/00
CPC分类号： F25J3/0486 , F25J3/04412 , F25J3/04769 , F25J3/04787 , F25J3/04793 , F25J3/04824 , F25J3/04884 , F25J5/005 , F25J2200/52 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20
摘要： A method and main heat exchange system for use in a cryogenic air separation plant in which down-flow and thermosiphon heat exchangers are employed to partially vaporize an oxygen-rich liquid produced in a lower pressure column and to condense the nitrogen-rich vapor in a higher pressure column. A greater proportion of the oxygen-rich liquid can be partially vaporized in the down-flow heat exchangers than in the thermosiphon heat exchangers and the nitrogen-rich vapor condensed in the thermosiphon heat exchangers can have a higher oxygen content than the nitrogen-rich vapor condensed in the down-flow heat exchangers. This allows the higher pressure column to operate at a lower pressure than would otherwise be possible. A central conduit can extend from the higher pressure column into the lower pressure column to introduce the nitrogen-rich vapor into at least the down-flow heat exchangers for purposes of reducing pressure drop and column height.

2. 发明申请

US20110146343A1 Process And Apparatus For The Separation Of Air By Cryogenic Distillation 有权
标题翻译：通过低温蒸馏分离空气的方法和装置
公开(公告)号：US20110146343A1
公开(公告)日：2011-06-23
申请号：US12640167
申请日：2009-12-17
申请人： Bao Ha , Jean-Renaud Brugerolle
发明人： Bao Ha , Jean-Renaud Brugerolle
IPC分类号： F25J3/00
CPC分类号： F25J3/04836 , F25J3/04054 , F25J3/0409 , F25J3/04254 , F25J3/0429 , F25J3/04303 , F25J3/04393 , F25J3/0443 , F25J3/04454 , F25J3/04793 , F25J3/04812 , F25J3/04824 , F25J3/04872 , F25J3/04951 , F25J2200/10 , F25J2200/32 , F25J2205/30 , F25J2210/06 , F25J2210/40 , F25J2245/42 , F25J2290/12 , F25J2290/80
摘要： A process for the cryogenic separation of air using a multiple column distillation system comprising at least a higher pressure column (“HP column”) and a lower pressure column (“LP column”), comprising: feeding cooled feed air to the high pressure column for separation into high pressure nitrogen-enriched overhead vapor and crude liquid oxygen; feeding at least one low pressure column feed stream comprising nitrogen and oxygen to the low pressure column for separation into nitrogen-rich overhead vapor and liquid oxygen; refluxing the low pressure column with a liquid stream from or derived from the high pressure column; feeding expanded air to an auxiliary separation column for separation into auxiliary column nitrogen-rich overhead vapor and oxygen-rich liquid and removing the nitrogen rich overhead vapour as a product stream; feeding bottom liquid from the auxiliary column to an intermediate location of the low pressure column; and refluxing the auxiliary column with a nitrogen rich liquid stream from or derived from the HP column.
摘要翻译：一种使用包括至少较高压力塔（“HP塔”）和低压塔（“LP塔”）的多塔蒸馏系统进行空气低温分离的方法，包括：将冷却的进料空气送入高压塔用于分离成高压富氮塔顶蒸气和粗液氧; 将至少一个包含氮气和氧气的低压塔进料流送入低压塔以分离成富氮塔顶蒸气和液氧; 用来自高压塔的液体流回流低压塔; 将膨胀空气送入辅助分离塔，分离成辅助塔富氮塔顶蒸气和富氧液体，并除去富氮塔顶蒸气作为产物流; 将底部液体从辅助塔输送到低压塔的中间位置; 并且用富氮液流从HP塔或从HP塔中得到回流辅助塔。

3. 发明授权

US06889524B2 Process and apparatus for cryogenic separation of gases 有权
标题翻译：低温分离气体的方法和装置
公开(公告)号：US06889524B2
公开(公告)日：2005-05-10
申请号：US10630609
申请日：2003-07-30
申请人： Declan P. O'Connor , Rebecca J. Andrew , Christopher Suggitt , Paul Higginbotham
发明人： Declan P. O'Connor , Rebecca J. Andrew , Christopher Suggitt , Paul Higginbotham
IPC分类号： F17C9/02 , F25J3/04 , F25J3/00
CPC分类号： F25J3/04539 , F17C9/02 , F17C2205/0326 , F17C2221/011 , F17C2221/014 , F17C2221/015 , F17C2221/016 , F17C2221/03 , F17C2221/031 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2225/0123 , F17C2225/0153 , F17C2225/033 , F17C2225/035 , F17C2227/0135 , F17C2227/0393 , F17C2250/0626 , F17C2250/0636 , F17C2265/015 , F25J3/04545 , F25J3/04824 , F25J3/04836 , F25J3/04951 , F25J2235/50 , F25J2250/50 , F25J2290/62
摘要： A back-up quantity of a “first” gas is supplied temporarily to maintain the level of production of the first gas from a cryogenic separation of a gaseous mixture comprising the first gas and at least one other gas in the event of reduction in the level of production of said first gas from the separation. In the event of reduction in the level of production of said first gas from the separation, liquefied first gas inventory is withdrawn from the or at least one of said cryogenic distillation systems and vaporised to produce said back-up quantity of first gas. The invention has particular application to the production of gaseous oxygen (“GOX”) from the separation of air.
摘要翻译：临时提供备用量的“第一”气体，以便在降低水平的情况下，保持包含第一气体和至少一种其它气体的气体混合物的低温分离中的第一气体的产生水平从分离产生所述第一气体。在从分离中降低所述第一气体的生产水平的情况下，液化的第一气体库存从所述或至少一个所述低温蒸馏系统中排出并蒸发以产生所述备用量的第一气体。本发明特别适用于从空气分离产生气态氧（“GOX”）。

4. 发明申请

US20040069016A1 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：US20040069016A1
公开(公告)日：2004-04-15
申请号：US10415835
申请日：2003-04-30
发明人： Alain Guillard
IPC分类号： F25J003/00
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。

5. 发明授权

US06702260B2 Installation and method of venting the waste gases of air distillation or liquefaction units 失效
标题翻译：排放空气蒸馏或液化装置废气的安装和方法
公开(公告)号：US06702260B2
公开(公告)日：2004-03-09
申请号：US09981733
申请日：2001-10-19
申请人： Daniel Gourdain , Jean-Marc Peyron
发明人： Daniel Gourdain , Jean-Marc Peyron
IPC分类号： B01F304
CPC分类号： F25J3/04824 , F25J3/04157 , F25J3/04854 , F25J3/04866 , F25J2205/34 , F25J2240/60 , F25J2270/02 , Y10T137/0318 , Y10T137/2931
摘要： To reduce the level of oxygen concentration in the waste gases emitted by the stack of such installations, according to the invention, connecting means (15) connect the respective internal spaces of a chamber (13), for discharging an inert gas miscible with oxygen and of lower density than air, such as nitrogen, and of the stack (2); thus, this inert gas is mixed with at least the oxygen flowing through the stack and the mixture obtained is discharged with a velocity at least equal to approximately 7 m/s at the exit of the stack.
摘要翻译：为了减少由这种装置的堆叠排放的废气中的氧气浓度，根据本发明，连接装置（15）连接室（13）的各个内部空间，用于排出与氧气混合的惰性气体，以及比空气如氮气和堆（2）的密度低; 因此，这种惰性气体与至少流过堆叠体的氧气混合，所获得的混合物在堆叠出口处以至少等于约7m / s的速度排出。

6. 发明授权

US5233839A Process for operating a heat exchanger 失效
标题翻译：用于操作热交换器的工艺
公开(公告)号：US5233839A
公开(公告)日：1993-08-10
申请号：US907707
申请日：1992-07-02
申请人： Lucien Greter , Francois Venet
发明人： Lucien Greter , Francois Venet
IPC分类号： F25J3/00 , F25J3/04
CPC分类号： F25J5/002 , F25J3/04787 , F25J3/04824 , F25J3/04842 , F25J2210/42 , F25J2245/90 , F25J2280/20 , F25J2280/30 , F25J2290/42 , Y10S62/903
摘要： The invention aims at preventing the risks of deformation and breaking down of the heat exchanger which is part of a plant for the batch treatment of fluids, of the type in which, during active periods which are separated from one another by rest periods, at least one refrigerating fluid is allowed to circulate in first ducts of the exchanger, from the cold end to the hot end of the latter, and at least one calorigenic fluid is circulated in second ducts of the exchanger, from the hot end to the cold end of the latter, characterized in that, during rest periods, heat is introduced at the hot end and cold is introduced at the cold end of the exchanger so as to maintain these two ends at temperatures which are relatively close to those corresponding to the active periods, at least one of these two inputs being supplied by means of a reserve fluid of the plant.
摘要翻译：本发明旨在防止作为用于批量处理流体的工厂的一部分的热交换器的变形和分解的风险，其中在活动期间彼此相隔休息的至少允许一个制冷流体在交换器的第一管道中循环，从冷端到后端的热端，并且至少一个热量流体在交换器的第二管道中循环，从热端到冷端后者的特征在于，在休息期间，在热端引入热量，并且在换热器的冷端引入冷，以便将这两个端部保持在相对接近与活动周期相对应的温度的温度，这两个输入中的至少一个通过工厂的储备流体供应。

7. 发明授权

US5157927A Process and apparatus for the production of gaseous nitrogen and system for supplying corresponding nitrogen 失效
标题翻译：用于生产氮气的方法和装置以及供应氮气的系统
公开(公告)号：US5157927A
公开(公告)日：1992-10-27
申请号：US673518
申请日：1991-03-22
申请人： Francois Darchis , Francois Venet , Jean-Louis Girault , Maurice Grenier , Patrick Jozon
发明人： Francois Darchis , Francois Venet , Jean-Louis Girault , Maurice Grenier , Patrick Jozon
IPC分类号： F25J3/04
CPC分类号： F25J3/044 , F25J3/04018 , F25J3/04254 , F25J3/04818 , F25J3/04824 , F25J3/04836 , F25J3/04951 , F25J3/04963 , F25J2210/42 , F25J2230/02 , F25J2250/40 , F25J2250/42 , F25J2270/904 , F25J2290/60 , F25J2290/62 , Y10S62/913
摘要： As soon as the apparatus is started, a flow of liquid nitrogen which is at least equal to the nominal flow of gaseous nitrogen is introduced in the head portion of the column, then the flow of liquid nitrogen is adjusted to a small fraction of this nominal flow. Application to the production of a flow of gaseous nitrogen which is variable and moderate.
摘要翻译：一旦装置开始，至少等于标称气态氮流量的液氮流被引入塔的头部，然后将液氮流量调节到该标称流量的一小部分流。适用于生产可变和适度的气态氮气流。

8. 发明授权

US4671813A Highly pure nitrogen gas producing apparatus 失效
标题翻译：高纯氮气生产设备
公开(公告)号：US4671813A
公开(公告)日：1987-06-09
申请号：US741969
申请日：1985-05-21
申请人： Akira Yoshino
发明人： Akira Yoshino
IPC分类号： F17C9/04 , F25J3/04 , F25J3/02
CPC分类号： F25J3/044 , F17C9/04 , F25J3/0426 , F25J3/04636 , F25J3/04824 , F17C2201/0109 , F17C2203/0391 , F17C2221/011 , F17C2221/014 , F17C2221/031 , F17C2223/0123 , F17C2223/0161 , F17C2270/0518 , F25J2200/74 , F25J2205/60 , F25J2210/42 , F25J2245/42 , F25J2250/42 , F25J2290/10 , F25J2290/62 , Y10S62/908 , Y10S62/913
摘要： A producing apparatus of highly pure nitrogen gas which is used in electronic industry for manufacturing silicon semiconductors.Conventional nitrogen gas producing apparatus of low temperature separation method and of PSA method are subjected to troubles frequently, the cost of the obtained product nitrogen gas is high, yet the purity is not very high.By the apparatus of this invention, the liquefied nitrogen storage means (15) is connected to the heat exchangers (13, 14) through the inlet channel (16), the compressed air reaching the heat exchangers (13, 14) through the air compressor (9) and the impurity removing means (12) is cooled down to ultra low temperature by using the evaporation heat of the liquefied nitrogen then is sent into the rectifying column (15), and the nitrogen is taken out in gas form by utilizing the difference in the boiling point and oxygen is left in liquid form.The obtained nitrogen gas is combined with the gassified liquid nitrogen from the liquefied nitrogen storage means (15) and made into product nitrogen gas.Highly pure nitrogen, therefore, can be produced at a low cost and with almost no trouble of the apparatus.
摘要翻译： PCT No.PCT / JP84 / 00151 Sec。 371日期1985年5月21日第 102（e）日期1985年5月21日PCT提交1984年3月29日PCT公布。第WO85 / 04466号公报 1985年10月10日。一种用于制造硅半导体的电子工业中的高纯氮气的制造装置。常规的低温分离方法和PSA方法的氮气制备装置经常发生故障，所得产物氮气的成本高，纯度不高。通过本发明的装置，液化氮存储装置（15）通过入口通道（16）连接到热交换器（13,14），压缩空气通过空气压缩机到达热交换器（13,14）（9）和杂质去除装置（12）通过使用液化氮的蒸发热将其冷却至超低温，然后被送入精馏塔（15），氮气以气体形式通过利用沸点和氧气的差异留在液体中。将获得的氮气与来自液化氮存储装置（15）的发泡液氮组合并制成产物氮气。因此，高纯度的氮可以以低成本生产，并且几乎没有装置的麻烦。

9. 发明授权

US3421333A Thawing technique for a single air separation plant 失效
标题翻译：单一空气分离设备的测量技术
公开(公告)号：US3421333A
公开(公告)日：1969-01-14
申请号：US3421333D
申请日：1965-08-20
申请人： LINDE AG
发明人： PLOTZ GEORG , MAYER ANDREAS , LEWANDOWSKI ADOLF
IPC分类号： F25J3/04
CPC分类号： F25J3/04824 , F25J3/04412 , F25J2205/24 , Y10S62/907 , Y10S62/908

10. 发明授权

US3143412A Method of enriching the oxygen content of air supplied to blast furnaces 失效
标题翻译：丰富供应给高炉的空气氧含量的方法
公开(公告)号：US3143412A
公开(公告)日：1964-08-04
申请号：US7200460
申请日：1960-11-28
申请人： DRAVO CORP
发明人： ROBINSON JR MELVILLE W , ALLISON ROBERT J
IPC分类号： C21B5/00 , C21B9/16
CPC分类号： C21B5/00 , C21B9/16 , F25J3/04478 , F25J3/04557 , F25J3/04824 , F25J3/0489 , F25J2215/02 , F25J2215/40 , F25J2215/50 , F25J2230/40 , F25J2245/50

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