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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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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：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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公开(公告)号：US5470543A
公开(公告)日：1995-11-28
申请号：US325503
申请日：1994-10-19
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： Ultra-high purity nitrogen is generated by 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 the carbon dioxide eliminator-drier and the primary rectification column. A part of low purity nitrogen gas separated in the primary rectification column is condensed and liquefied by a condenser. The raw nitrogen gas which has not been condensed and liquefied in the condenser is warmed to normal temperature by a heat exchanger and compressed by a recyclic compressor so that the pressure thereof is increased and the temperature thereof is raised. Carbon monoxide and hydrogen are oxidized in an oxidation column and the resulting carbon dioxide and water are removed by an adsorption column.
摘要翻译： 通过将进料空气送入二氧化碳消除器干燥器和一次精馏塔而产生超高纯度氮气，从而除去用于通过二氧化碳消除器在进料空气中氧化一氧化碳和氢气的氧化催化剂的催化剂毒物， 干燥器和一次整流柱。 在一次精馏塔中分离的一部分低纯度氮气通过冷凝器冷凝和液化。 在冷凝器中未冷凝和液化的原料氮气通过热交换器升温至常温，并通过循环压缩机压缩，使得其压力增加并且其温度升高。 一氧化碳和氢气在氧化塔中氧化，所得的二氧化碳和水通过吸附塔除去。
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公开(公告)号：US5363656A
公开(公告)日：1994-11-15
申请号：US157035
申请日：1993-12-02
申请人： Takashi Nagamura , Takao Yamamoto
发明人： Takashi Nagamura , Takao Yamamoto
CPC分类号： F25J3/04854 , F25J3/04218 , F25J3/04284 , F25J3/0429 , F25J3/0443 , F25J3/0486 , F25J2200/34 , F25J2200/50 , F25J2200/52 , F25J2200/90 , F25J2215/44 , F25J2215/56 , F25J2245/40 , F25J2250/40 , F25J2250/50
摘要： A generator produces ultra-high purity nitrogen and ultra-high purity oxygen simultaneously by the liquefaction and rectification of feed air. Feed air is rectified in a first rectification column, and nitrogen gas separated to the top of that column is liquefied, in a nitrogen condenser, by oxygen-enriched liquid air separated to the bottom portion of the first rectification column. The oxygen-enriched liquid is fed to the upper portion of a second rectification column having a reboiler at its bottom, so that through rectification oxygen gas is fed from above a liquid reservoir to the lower portion of a third rectification column. Through rectification of the oxygen gas in the third rectification column, high purity oxygen gas, from which impurities having boiling points higher than that of oxygen have been removed by liquefaction, is fed to the center portion of a fourth rectification column which has a condenser in its top portion and a reboiler in its bottom portion. Through rectification of the high purity oxygen gas in the fourth rectification column, impurities having boiling points lower than that of oxygen are exhausted from the top portion thereof as non-condensed gas and ultra-high purity liquid oxygen is separated to the bottom thereof.
摘要翻译： 发电机通过进料空气的液化和整流同时产生超高纯氮和超高纯氧。 进料空气在第一精馏塔中精馏，并且在氮气冷凝器中分离到该塔顶部的氮气被分离到第一精馏塔底部的富氧液体空气液化。 富氧液体在其底部被供给到具有再沸器的第二精馏塔的上部，从而通过精馏将氧气从液体储存器上方供给到第三精馏塔的下部。 通过第三精馏塔中的氧气的精馏，通过液化除去沸点高于氧气的杂质的高纯度氧气被送入具有冷凝器的第四精馏塔的中心部分 其顶部和在其底部的再沸器。 通过对第四精馏塔中的高纯度氧气进行精馏，将沸点低于氧气的杂质从其顶部排出为非冷凝气体，超高纯度液氧分离到其底部。
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公开(公告)号：US5349822A
公开(公告)日：1994-09-27
申请号：US26481
申请日：1993-03-04
申请人： Takashi Nagamura , Takao Yamamoto
发明人： Takashi Nagamura , Takao Yamamoto
CPC分类号： F25J3/04084 , C01B21/04 , F25J3/04163 , F25J3/04169 , F25J3/04193 , F25J3/04224 , F25J3/0423 , F25J3/04284 , F25J3/04309 , F25J3/04357 , F25J3/044 , F25J3/04412 , F25J3/04854 , F25J2200/74 , F25J2200/94 , F25J2205/02 , F25J2205/60 , F25J2205/82 , F25J2215/42 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2250/20 , F25J2250/42 , F25J2270/02 , F25J2280/02 , Y02P20/152 , Y10S62/939
摘要： Air separation by low temperature liquefaction and fractionation wherein feed air is compressed and cooled and supplied to a single stage air separation column from which gaseous nitrogen is removed frown the top and wherein an oxygen-rich liquid is removed from the bottom. The column contains solid material providing solid surfaces on which mass and energy transfer takes place to effect fractionation over a substantial vertical height in the single stage of the column. Liquid is removed from the column intermediate that height, and the removed liquid is subcooled and expanded to produce a gas and a liquid. The liquid is an ultra-high purity nitrogen product, and can be withdrawn from the cycle in liquid or vapor phase. Vapor is removed from the top of the column, cooled and partially condensed and phase separated. Vapor from the last-mentioned phase separation is discharged, thereby to eliminate from the cycle most of the impurities boiling lower than nitrogen. Liquid from the last-mentioned phase separation is returned to the top of the column as reflux.
摘要翻译： 通过低温液化和分馏进行空气分离，其中进料空气被压缩和冷却并供应到单级空气分离塔，从其中除去气态氮皱起顶部，并且其中从底部除去富氧液体。 该柱包含提供固体表面的固体材料，在该表面上进行质量和能量转移，以在柱的单个阶段中在基本垂直的高度上进行分馏。 将液体从该高度的中间塔中除去，并将被除去的液体过冷和膨胀以产生气体和液体。 液体是超高纯氮产品，可以在液相或气相中从循环中取出。 将蒸气从塔顶除去，冷却并部分冷凝并相分离。 排出最后提到的相分离的蒸汽，从而从循环中消除大部分沸点低于氮的杂质。 来自最后提到的相分离的液体作为回流返回塔的顶部。
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公开(公告)号：US5345773A
公开(公告)日：1994-09-13
申请号：US26480
申请日：1993-03-04
申请人： Takashi Nagamura , Takao Yamamoto
发明人： Takashi Nagamura , Takao Yamamoto
CPC分类号： F25J3/04084 , C01B21/04 , F25J3/04163 , F25J3/04169 , F25J3/04193 , F25J3/04224 , F25J3/0423 , F25J3/04284 , F25J3/04309 , F25J3/04357 , F25J3/044 , F25J3/04412 , F25J3/04854 , F25J2200/74 , F25J2200/94 , F25J2205/02 , F25J2205/60 , F25J2205/82 , F25J2215/42 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2250/20 , F25J2250/42 , F25J2270/02 , F25J2280/02 , Y02P20/152 , Y10S62/939
摘要： A method and apparatus for separating air by low temperature liquefaction and fractionation wherein feed air is compressed and cooled and supplied to the high pressure stage of a two-stage fractionation column from the bottom of the high pressure stage of which liquid is expanded and introduced at an intermediate level of the low pressure stage and a gaseous nitrogen product is removed from the top of the high pressure stage of the column, and wherein an oxygen product is removed from the bottom of the low pressure stage and a gaseous nitrogen product is removed from the top of the low pressure stage. Both stages contain solid material providing solid surfaces on which mass transfer takes place to effect fractionation over a substantial vertical distance. The improvement comprises removing a liquid from the high pressure stage intermediate the height of the solid material therein. The removed liquid is subcooled and expanded to produce a gas and a liquid, and the last-named liquid is withdrawn as ultra-high purity nitrogen.
摘要翻译： 一种通过低温液化和分馏分离空气的方法和装置，其中进料空气被压缩和冷却，并从高压级的底部向两级分馏塔的高压级供应液体，其中液体膨胀并引入 从塔的高压级的顶部除去低压级的中间水平和气态氮产物，并且其中从低压级的底部除去氧产物，并从氮气中除去气态氮产物 顶级的低压阶段。 两个阶段都包含提供固体表面的固体材料，在该表面上进行质量传递，以在相当大的垂直距离上进行分馏。 改进之处在于从其中的固体材料的高度的高压阶段除去液体。 除去的液体被过冷和膨胀以产生气体和液体，最后命名的液体作为超高纯度氮气排出。
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9.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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