公开(公告)号：US5122175A

公开(公告)日：1992-06-16

申请号：US531249

申请日：1990-05-31

申请人： Shozi Koyama ,  Takazumi Ishizu ,  Junichi Hosokawa ,  Masahiro Yamazaki ,  Shinjiroo Ueda ,  Kanji Fujimori

发明人： Shozi Koyama ,  Takazumi Ishizu ,  Junichi Hosokawa ,  Masahiro Yamazaki ,  Shinjiroo Ueda ,  Kanji Fujimori

IPC分类号： F25J3/04 ,  F25J3/08

CPC分类号： F25J3/044 ,  F25J3/04218 ,  F25J3/04284 ,  F25J3/04818 ,  F25J3/08 ,  F25J2200/02 ,  F25J2200/72 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2205/84 ,  F25J2215/44 ,  F25J2220/42 ,  F25J2220/44 ,  F25J2250/20

摘要： The present invention consists in that a nitrogen gas line and a liquid nitrogen line are subjected to hot-blast baking with clean nitrogen gas and a gas containing oxygen, whereby outgasses such as moisture to develop from heat exchangers, valves and piping can be excluded. Moreover, in order to obtain nitrogen gas of very high purity, liquid nitrogen of low contents of high-boiling components as subjected to rectifying separation is derived and gasified, and the liquid nitrogen is introduced into co-adsorbers so as to absorb and remove carbon monoxide difficult of separation by the rectifying separation, whereupon the liquid nitrogen and the nitrogen gas are obtained as products.

摘要翻译： 本发明的目的在于，将氮气管线和液氮管线用干净的氮气和含氧的气体进行热风烘烤，从而可以排除由热交换器，阀门和管道形成的诸如水分的气体。 此外，为了得到非常高纯度的氮气，得到低浓度高沸点组分的经过精馏分离的液氮并气化，将液氮引入共吸附剂中以吸收和除去碳 通过精馏分离难以分离的一氧化碳，由此获得液氮和氮气作为产物。

公开(公告)号：US4746343A

公开(公告)日：1988-05-24

申请号：US924771

申请日：1986-10-30

申请人： Takazumi Ishizu ,  Masahiro Yamazaki ,  Shozi Koyama ,  Kazunori Nagae ,  Junichi Hosokawa

发明人： Takazumi Ishizu ,  Masahiro Yamazaki ,  Shozi Koyama ,  Kazunori Nagae ,  Junichi Hosokawa

IPC分类号： F25J3/04 ,  F25J3/06

CPC分类号： F25J3/04393 ,  F25J3/04284 ,  F25J3/0429 ,  F25J3/04303 ,  F25J3/044 ,  F25J3/04412 ,  F25J3/04787 ,  F25J2200/72 ,  F25J2245/40 ,  F25J2290/12 ,  Y10S62/939

摘要： The invention discloses a method of gas separation which pressurizes part of a raw gas issuing from the outlet of an adsorbing tower by employing a compressor portion of an expander compressor, cools the pressurized gas by means of a main heat exchanger, and expands the cooled gas by means of an expansion turbine of the expander compressor, thereby efficiently carrying out gas separation with a simple arrangement.

摘要翻译： 本发明公开了一种气体分离方法，其通过使用膨胀机压缩机的压缩机部分对从吸附塔的出口排出的原料气体的一部分进行加压，通过主热交换器冷却加压气体，并使冷却气体 通过膨胀机压缩机的膨胀涡轮机，由此以简单的方式有效地进行气体分离。

公开(公告)号：US4696689A

公开(公告)日：1987-09-29

申请号：US803675

申请日：1985-12-02

申请人： Hideharu Mori ,  Shozi Koyama ,  Masahiro Yamazaki

发明人： Hideharu Mori ,  Shozi Koyama ,  Masahiro Yamazaki

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

CPC分类号： F25J3/04218 ,  F25J3/04224 ,  F25J3/04284 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/044 ,  F25J3/04412 ,  F25J2200/72 ,  F25J2230/42 ,  F25J2230/52 ,  F25J2280/02

摘要： A gas separating method and a gas separating apparatus according to the present invention effectively carry out the generation of the cryogenic effect within a plant for separating and extracting valuable gases such as nitrogen, oxygen, argon or the like from raw gas. For this purpose, the arrangement is such that low temperature gas within a process is subjected to a thermal exchange with the raw gas in a heat exchanger and is thermally restored; the thus restored gas is fed to a booster driven by an expansion turbine to be pressurized therein; the thus pressurized gas is cooled to the normal temperature by a cooler; the cooled gas is further cooled in the heat exchanger; and the still lower temperature gas is supplied to the expansion turbine to be adiabatically expanded, thereby generating the cryogenic effect.

摘要翻译： 根据本发明的气体分离方法和气体分离装置有效地在工厂内产生用于从原料气体中分离和提取有价值气体如氮气，氧气，氩气等的低温效应。 为此，这种布置使得一个工艺中的低温气体在热交换器中与原料气体进行热交换并进行热恢复; 这样恢复的气体被供给到由膨胀涡轮机驱动的增压器中以在其中被加压; 将这样加压的气体通过冷却器冷却至常温; 冷却的气体在热交换器中进一步冷却; 并且将较低温度的气体供应到膨胀涡轮机以进行绝热膨胀，从而产生低温效应。

公开(公告)号：US4299607A

公开(公告)日：1981-11-10

申请号：US149630

申请日：1980-05-14

申请人： Michimasa Okabe ,  Shozi Koyama

发明人： Michimasa Okabe ,  Shozi Koyama

IPC分类号： F25J3/04

CPC分类号： F25J3/04412 ,  F25J3/04193 ,  F25J3/04309 ,  F25J3/04781 ,  F25J3/04818 ,  F25J2205/24 ,  F25J2245/40 ,  F25J2250/40 ,  F25J2250/42 ,  Y10S62/928

摘要： In a low pressure type air separation apparatus provided with a reversing heat exchanger for removing water vapor and carbon dioxide gas in feed air, a nitrogen gas taken out of a high pressure column in a duplex type rectification tower is led to an expander for generating subcooling for the air separation apparatus, and the effluent nitrogen gas is obtained under a predetermined pressure by controlling a pressure of the effluent gas from the expander. The effluent nitrogen gas is adjusted to a temperature satisfactory for the inlet temperature conditions for the reversing heat exchanger by passing the effluent nitrogen gas through a heat exchanger, and then is passed through the reversing heat exchanger, whereby the effluent gas from the reversing exchanger is obtained as a product nitrogen gas under a predetermined pressure.

摘要翻译： 在具有用于除去进料空气中的水蒸气和二氧化碳气体的反向热交换器的低压型空气分离装置中，将从双倍型精馏塔中的高压塔取出的氮气导入膨胀机，生成过冷却 用于空气分离装置，并且通过控制来自膨胀器的流出气体的压力，在预定压力下获得流出氮气。 通过使排出的氮气通过热交换器，将排出的氮气调节至对于换向换热器的入口温度条件满意的温度，然后通过反向换热器，由此来自反向换热器的流出气体为 在预定压力下作为产物氮气获得。