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公开(公告)号：US5783162A
公开(公告)日：1998-07-21
申请号：US705696
申请日：1996-08-30
申请人： Shinji Tomita , Takashi Nagamura , Takao Yamamoto
发明人： Shinji Tomita , Takashi Nagamura , Takao Yamamoto
CPC分类号： C30B15/00 , C01B23/0094 , F25J3/0285 , F25J3/08 , C01B2210/0006 , C01B2210/0014 , C01B2210/0045 , C01B2210/005 , F25J2200/02 , F25J2200/30 , F25J2205/40 , F25J2205/60 , F25J2205/82 , F25J2205/84 , F25J2210/42 , F25J2215/58 , F25J2270/60 , F25J2270/904
摘要： An argon recovery and purification process in which the consumption of energy is small because of simple steps, is provided. This process comprises: a first step of reacting impure argon gas with hydrogen gas (H2) so that oxygen (O2) contained in the impure argon gas is converted to water (H2O), thereby substantially removing oxygen (O2) from the impure argon gas; a second step of introducing the impure argon gas into an adsorption unit for adsorbing water (H2O) and carbon dioxide (CO2) contained in the impure argon gas, thereby substantially removing the water (H2O) and carbon dioxide (CO2) from the impure argon gas; and a third step of subjecting the impure argon gas to a low temperature liquefaction and introducing the liquefied argon into a rectification unit for removing low boiling point impurity components and high boiling point impurity components contained in the impure argon gas by purification and separation, thereby obtaining substantially pure argon gas.
摘要翻译： 提供了由于简单的步骤而消耗能量的氩回收和净化过程。 该方法包括：使不纯的氩气与氢气（H 2）反应使得不纯的氩气中包含的氧（O 2）转化为水（H 2 O），从而从不纯的氩气中大量除去氧（O 2） ; 将不纯的氩气引入用于吸附不纯的氩气中所含的水（H 2 O）和二氧化碳（CO 2）的吸附单元的第二步骤，从而从不纯的氩气中基本上除去水（H 2 O）和二氧化碳（CO 2） 加油站; 以及第三步骤，对不纯的氩气进行低温液化，并将液化的氩气引入精馏单元中，以通过净化和分离除去不纯的氩气中所含的低沸点杂质组分和高沸点杂质成分，从而获得 基本上纯的氩气。
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2.发明授权
公开(公告)号：US5832746A
公开(公告)日：1998-11-10
申请号：US856005
申请日：1997-05-14
申请人： Takashi Nagamura
发明人： Takashi Nagamura
IPC分类号： C01B21/083 , F25J3/02 , F25J3/08 , F25J1/00
CPC分类号： C01B21/0832 , Y10S62/918 , Y10S62/928
摘要： An ultra-high purity nitrogen trifluoride production method comprises: pressurizing a nitrogen trifluoride feed gas, eliminating moisture and carbon dioxide from the feed gas, and cooling down the same feed gas; causing the cooled feed gas to pass through adsorption columns, and introducing it into a medium-pressure rectification column by way of a reboiler in the medium-pressure rectification column, where it is rectified in the medium-pressure rectification column; introducing the resulting gas obtained by this rectification into a middle stage of a low-pressure rectification column, where it is rectified; and taking out ultra-high purity nitrogen trifluoride obtained by virtue of this rectification from the lower part of the low-pressure rectification column.
摘要翻译： 超高纯度三氟化氮的制造方法包括：对三氟化氮进料气进行加压，从原料气中除去水分和二氧化碳，并冷却相同的原料气; 使冷却的进料气体通过吸附塔，并通过中压精馏塔中的再沸器将其引入中压精馏塔中，在中压精馏塔中进行精馏; 将通过该精馏得到的所得气体引入低压精馏塔的中间阶段，在其中进行精馏处理; 从低压精馏塔的下部取出由该整流得到的超高纯度三氟化氮。
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公开(公告)号：US5685169A
公开(公告)日：1997-11-11
申请号：US635954
申请日：1996-05-06
申请人： Takashi Nagamura , Shinji Tomita
发明人： Takashi Nagamura , Shinji Tomita
CPC分类号： B01D3/32 , B01D3/14 , C01B7/093 , Y10S62/902 , Y10S62/918
摘要： A method and apparatus for preparing high purity hydrogen bromide, wherein a starting hydrogen bromide which contains impurities having low boiling points is supplied to an intermediate space. While the gas phase of the starting hydrogen bromide is allowed to ascend through an upper rectifying section, it is brought into contact with a first reflux solution flowing in the reverse direction. The uncondensed gas stored in an upper space is cooled and partly condensed. The condensed liquid is allowed to flow down through an upper rectifying section as the first reflux solution. The liquid-phase of the starting hydrogen bromide is mixed with the first reflux solution in the intermediate space and serves as a second reflux solution. The liquid stored in a lower space is heated and partly evaporated. The liquid stored in the lower space is supplied outside as high purity hydrogen bromide. The uncondensed gas stored in the upper space is discharged outside.
摘要翻译： PCT No.PCT / JP95 / 01809 Sec。 371日期：1996年5月6日 102（e）日期1996年5月6日PCT提交1995年9月13日PCT公布。 公开号WO96 / 08442 日期：1996年3月21日制备高纯度溴化氢的方法和装置，其中含有低沸点杂质的起始溴化氢供给中间空间。 当起始溴化氢的气相通过上部精馏段上升时，使其与反向流动的第一回流溶液接触。 存储在上部空间中的未冷凝气体被冷却并部分冷凝。 冷凝的液体作为第一回流溶液通过上部精馏部分流下。 起始溴化氢的液相与中间空间中的第一回流溶液混合并用作第二回流溶液。 储存在较低空间的液体被加热并部分蒸发。 储存在较低空间的液体作为高纯度溴化氢供给到外部。 储存在上部空间的未冷凝气体排出到外部。
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公开(公告)号：US5441719A
公开(公告)日：1995-08-15
申请号：US102669
申请日：1993-08-05
申请人： Takashi Nagamura , Takao Yamamoto , Shinji Tomita
发明人： Takashi Nagamura , Takao Yamamoto , Shinji Tomita
CPC分类号： F25J3/08 , C01B21/0416 , F25J3/04636 , C01B2210/0042 , C01B2210/005 , C01B2210/0053 , F25J2200/02 , F25J2200/74 , F25J2205/82 , F25J2210/04 , F25J2210/42 , F25J2215/44 , F25J2220/42 , F25J2245/02 , F25J2245/50 , F25J2250/02 , F25J2270/904 , F25J2280/02 , Y02P20/152
摘要： An ultra-high purity nitrogen generating method is disclosed which comprises: oxidizing feed nitrogen gas containing oxygen added therein so that carbon monoxide in the feed nitrogen gas is converted for removal to carbon dioxide and hydrogen to water; then introducing the feed nitrogen gas to a nitrogen rectification column, and taking out liquid nitrogen containing unreacted oxygen from the lower portion thereof; adding nitrogen gas obtained by gas liquid separation in a gas-liquid separator and containing the unreacted oxygen gas to the feed nitrogen gas, and using a resulting mixture in circulation; taking out high purity nitrogen gas from the top portion of the nitrogen rectification column, condensing in a condenser the taken out high purity nitrogen gas by liquid nitrogen from the gas-liquid separator, refluxing the condensed nitrogen gas to the upper portion of the nitrogen rectification column as a reflux liquid, and taking out ultra-high purity nitrogen gas or ultra-high purity liquid nitrogen. An ultra-high purity nitrogen generator therefor is also provided.
摘要翻译： 公开了一种超高纯度氮气生成方法，其包括：将含有氧气的进料氮气氧化，使得进料氮气中的一氧化碳转化为二氧化碳和氢气至水; 然后将进料氮气引入氮气精馏塔，从其下部取出含有未反应的氧气的液氮; 在气液分离器中通过气液分离得到的氮气，并将未反应的氧气包含在进料氮气中，并将所得混合物循环使用; 从氮精馏塔的顶部取出高纯度氮气，在冷凝器中冷凝，从气液分离器中用液氮将取出的高纯度氮气冷凝，将冷凝的氮气回流至氮气精馏的上部 柱作为回流液体，并取出超高纯度氮气或超高纯度液氮。 还提供了一种超高纯度氮气发生器。
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公开(公告)号：US5682761A
公开(公告)日：1997-11-04
申请号：US684057
申请日：1996-07-19
申请人： Takashi Nagamura , Takao Yamamoto , Shinji Tomita
发明人： Takashi Nagamura , Takao Yamamoto , Shinji Tomita
CPC分类号： F25J3/04357 , B01D53/0423 , F25J3/04157 , F25J3/04254 , F25J3/04321 , F25J3/04636 , F25J3/04642 , B01D2256/10 , B01D2257/504 , B01D2257/80 , B01D2259/40001 , F25J2200/04 , F25J2200/90 , F25J2205/60 , F25J2205/82 , F25J2210/42 , F25J2215/30 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2230/42 , F25J2245/42 , F25J2270/90 , Y02C10/08 , Y10S62/913
摘要： Ultra-high purity nitrogen is generated by removing, from feed air, carbon dioxide, moisture and catalyst poisons of an oxidation catalyst contained therein by a decarbonating drier (4). The feed air is then introduced into a low-pressure rectification column (6), where it is roughly rectified to further remove the carbon dioxide, moisture and catalyst poison. Then raw nitrogen gas obtained in the low-pressure rectification column (6) is introduced into an oxidation column (8) so that carbon monoxide in the raw nitrogen gas is converted to carbon dioxide and hydrogen also contained therein to water. Thereafter the raw nitrogen gas is introduced into an adsorption column (10) so that carbon dioxide and water are removed by adsorption to provide feed raw nitrogen gas, which is fed into an intermediate-pressure rectification column (11), where it is rectified. Nitrogen gas from the top portion of the intermediate-pressure rectification column is condensed by a reboiler-condenser (6RC) to provide high purity liquid nitrogen; and the liquid nitrogen is returned to the intermediate-pressure rectification column (11), whereby a part of this high purity liquid nitrogen is used as a reflux liquid and the remaining part thereof is taken out of a rectifying stage that is several stages below the rectifying stage in the top portion of the intermediate-pressure rectification column as an ultra-high purity nitrogen gas product or ultra-high purity liquid nitrogen product.
摘要翻译： 通过由脱碳干燥器（4）除去其中含有的氧化催化剂的二氧化碳，水分和催化剂毒物，从而从进料空气中除去超高纯氮。 然后将进料空气引入低压精馏塔（6）中，其中其大致精馏以进一步除去二氧化碳，水分和催化剂毒物。 然后，将在低压精馏塔（6）中得到的原料氮气导入氧化塔（8），将原料氮气中的一氧化碳转化为二氧化碳，氢也含有。 然后，将原料氮气引入吸附塔（10），通过吸附除去二氧化碳和水，以提供进料原料氮气，该原料氮气进料到中压精馏塔（11）中，在那里进行精馏。 来自中压精馏塔顶部的氮气通过再沸器 - 冷凝器（6RC）冷凝以提供高纯度液氮; 并将液氮返回中压精馏塔（11），由此将该部分高纯度液氮用作回流液体，其余部分被从几级下方的精馏段中取出 作为超高纯度氮气产物或超高纯度液氮产物的中压精馏塔顶部的精馏段。
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公开(公告)号：US5617740A
公开(公告)日：1997-04-08
申请号：US553532
申请日：1995-12-27
申请人： Takashi Nagamura , Shinji Tomita
发明人： Takashi Nagamura , Shinji Tomita
CPC分类号： C01B33/046 , B01D3/14 , Y10S62/905
摘要： A method and unit for easily and continuously producing high pressure gaseous monosilane and high pressure liquid monosilane, each having an ultra high purity. In the ultra high purity monosilane producing method, a feed monosilane gas is pressurized, cooled down and subjected to a gas-liquid phase separation. The separated gas phase is introduced to a lower rectification column 1 so as to be rectified. The gas obtained through this rectification is introduced to an upper rectification column 2 so as to be rectified, wherein a gaseous monosilane product or liquid monosilane product having an ultra high purity is taken out of the bottom portion of the upper rectification column.
摘要翻译： PCT No.PCT / EP95 / 01084第 371 1995年12月27日第 102（e）1995年12月27日PCT PCT 1995年3月22日PCT公布。 WO95 / 26927 PCT公开号 日期1995年10月12日一种容易且连续地生产高纯度气态单硅烷和高压液体单硅烷的方法和单元，每种都具有超高纯度。 在超高纯度硅烷制造方法中，进料单硅烷气体被加压，冷却并进行气相分离。 将分离的气相引入到下部精馏塔1中以进行整流。 通过该精馏得到的气体被引入上部精馏塔2中以进行精馏，其中从上部精馏塔底部取出具有超高纯度的气态单硅烷产物或液体单硅烷产物。
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公开(公告)号：US5220798A
公开(公告)日：1993-06-22
申请号：US959540
申请日：1992-10-13
IPC分类号： F25J3/04
CPC分类号： F25J3/04224 , F25J3/0406 , F25J3/04266 , F25J3/04351 , F25J3/04412 , F25J2280/02 , Y10S62/912
摘要： The invention concerns the separation of air with an external cold source. An internal cold source is provided to supply cold heat to a compressed inert gas by expansion of a part of a liquefied inert gas when the cold from the external cold source proves to be insufficient. This part of the liquefied inert gas is combined with recycling and compressed gases. The desired production of liquid oxygen and nitrogen is thus assured in spite of variations in the external cold source.
摘要翻译： 本发明涉及用外部冷源分离空气。 提供内部冷源，当来自外部冷源的冷却被证实不足时，通过膨胀一部分液化惰性气体来向压缩的惰性气体供应冷热。 这部分液化惰性气体与再循环和压缩气体相结合。 因此，尽管外部冷源的变化，仍然确保所需的液氧和氮的产生。
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公开(公告)号：US5546765A
公开(公告)日：1996-08-20
申请号：US392341
申请日：1995-02-22
申请人： Takashi Nagamura , Shinji Tomita
发明人： Takashi Nagamura , Shinji Tomita
CPC分类号： F25J3/04284 , F25J3/04163 , F25J3/04169 , F25J3/044 , F25J3/04969 , F25J2200/72 , F25J2200/90 , F25J2205/82 , F25J2215/40 , F25J2215/44 , F25J2220/40 , F25J2250/20 , Y10S62/901
摘要： An air separating unit which can jointly produce high purity nitrogen gas and compressed dry air of high quality freed of hydrocarbons such as methane and ethane. The air separating unit is constructed such that compressed dry air freed of hydrogen, carbon monoxide, carbon dioxide and moisture is cooled down near to its liquefying point and introduced into a rectification column (30) and nitrogen gas separated by rectification from the compressed dry air in this rectification column (30) is taken out as a product. The rectifying portion in the rectification column (30) is divided into a lower rectifying portion (34) and an upper rectifying portion (36), and in this lower rectifying portion (34), hydrocarbons such as methane are mainly removed from the compressed dry air, and the compressed dry air which has passed through the lower rectifying portion (34) is taken out as a product.
摘要翻译： 一种可共同生产高纯度氮气和高品质压缩干燥空气的空气分离装置，可以排放碳氢化合物如甲烷和乙烷。 空气分离单元被构造成使得排出氢气，一氧化碳，二氧化碳和水分的压缩干燥空气在其液化点附近被冷却并被引入精馏塔（30），并将氮气从压缩干燥空气中分离 在该精馏塔（30）中作为产品取出。 精馏塔（30）中的精馏部分分为下整流部（34）和上精馏部（36），在该下精馏部（34）中，主要从压缩干燥 将通过下部精馏部（34）的压缩干燥空气作为产品取出。
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公开(公告)号：US5499506A
公开(公告)日：1996-03-19
申请号：US256970
申请日：1994-11-16
申请人： Takashi Nagamura , Shinji Tomita
发明人： Takashi Nagamura , Shinji Tomita
CPC分类号： C01B33/046 , Y10S62/931
摘要： Provided is a process and an apparatus for producing ultra-high purity monosilane. In a preferred embodiment, the process comprises introducing a monosilane feed gas, which also serves as a heat source, to the lower stage of a rectification column which is sectioned into an upper stage, a middle stage and a lower stage by means of an intermediate portion reboiler-condenser and a lower portion reboiler-condenser. The monosilane feed gas is cooled in the lower portion of the reboiler-condenser so that the higher boiling point components in the feed gas are separated. The remaining lower boiling point components are then introduced into the upper stage by way of the middle stage and the intermediate portion of the reboiler-condenser. The remaining components are condensed in the top portion of the upper stage so that monosilane and the lower boiling point components are separated, with the condensed monosilane becoming a reflux liquid. Ultra-high purity monosilane is thereby obtained and removed from the bottom portion of the upper stage of the unit.
摘要翻译： PCT No.PCT / EP93 / 03378 371日期：1994年11月16日 102（e）日期1994年11月16日PCT 1993年11月30日PCT PCT。 公开号WO94 / 12837 日期：1994年6月9日。提供了一种生产超高纯度硅烷的方法和设备。 在优选的实施方案中，该方法包括将作为热源的单硅烷进料气体引入精馏塔的下段，该精馏塔通过中间体分段成上段，中段和下段 部分再沸器 - 冷凝器和下部再沸器 - 冷凝器。 在再沸器 - 冷凝器的下部冷却单硅烷进料气体，使进料气体中的较高沸点组分分离。 剩余的低沸点组分然后通过再沸器 - 冷凝器的中间阶段和中间部分被引入上段。 其余的组分在上段的顶部被冷凝，使得甲硅烷和低沸点组分被分离，缩合的甲硅烷变成回流液体。 由此，从单元的上层的底部获得并除去超高纯度的甲硅烷。
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公开(公告)号：US5478547A
公开(公告)日：1995-12-26
申请号：US124072
申请日：1993-09-21
申请人： Takashi Nagamura , Takao Yamamoto , Shinji Tomita
发明人： Takashi Nagamura , Takao Yamamoto , Shinji Tomita
CPC分类号： F25J3/04642 , F25J3/04157 , F25J3/04254 , F25J3/04284 , F25J3/04357 , F25J3/04636 , F25J2200/04 , F25J2200/54 , F25J2205/02 , F25J2205/60 , F25J2205/82 , F25J2205/84 , F25J2210/42 , F25J2215/30 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2230/42 , F25J2245/42 , F25J2250/02 , F25J2270/90
摘要： An ultra-high purity nitrogen generating method comprises: feeding feed air to a carbon dioxide eliminator-drier and a primary rectification column, thereby removing catalyst poisons for an oxidation catalyst used for oxidation of carbon monoxide and hydrogen in the feed air by means of the carbon dioxide eliminator-drier and the primary rectification column, condensing and liquefying a part of low purity nitrogen gas separated in the primary rectification column by means of a condenser, warming the raw nitrogen gas which has not been condensed and liquefied in the condenser to normal temperature by means of a heat exchanger and compressing it by a recyclic compressor so that the pressure thereof is increased and the temperature thereof is raised, oxidizing carbon monoxide and hydrogen in an oxidation column and removing the resulting carbon dioxide and water by an adsorption column.
摘要翻译： 超高纯度氮气生成方法包括：将进料空气送入二氧化碳除去器和一次精馏塔，从而除去用于氧化进料空气中的一氧化碳和氢气的氧化催化剂的催化剂毒物 二氧化碳除气器和一次精馏塔，通过冷凝器冷凝和液化在一次精馏塔中分离的一部分低纯度氮气，将冷凝器中未冷凝和液化的原始氮气加热至正常 温度，并通过循环压缩机进行压缩，使其压力升高，温度升高，氧化柱中氧化一氧化碳和氢气，并通过吸附塔除去生成的二氧化碳和水。
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