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51. 发明授权

US5486318A Liquid-vapor contact column 失效
标题翻译：液 - 气接触柱
公开(公告)号：US5486318A
公开(公告)日：1996-01-23
申请号：US366350
申请日：1994-12-29
申请人： Kevin McKeigue , Ramachandran Krishnamurthy
发明人： Kevin McKeigue , Ramachandran Krishnamurthy
IPC分类号： B01D53/18 , B01D3/16 , B01D3/26 , B01J19/32 , B01F3/04
CPC分类号： B01D3/141 , B01J19/32 , B01J2219/3221 , B01J2219/32213 , B01J2219/32227 , B01J2219/32268 , Y10S261/72
摘要： A liquid-vapor contact column comprising a column shell and one or more beds of structured packing located within the column shell. Each bed of structured packing includes a plurality of vertical stacks which are formed of at least two upper and lower levels of structured packing. The structured packing is partitioned to form the vertical stacks. When the structured packing is formed from corrugated sheet material, the vertical stacks can also be spaced from one another with the corrugated sheets making up the structured packing rotated 90.degree. with respect to boarding vertical stacks of structured packing. The partitions or the rotated arrangement of the packing inhibit liquid migration in a transverse, horizontal direction of the column. This promotes constant liquid and vapor flow characteristics through each of the vertical stacks of structured packing to resist widespread liquid channeling throughout the column.
摘要翻译：一种液 - 气接触柱，其包括柱壳和位于柱壳内的一个或多个规则填料床。每个规整填料床均包括由至少两个上层和下层的规整填料形成的多个垂直叠层。结构化填料被分隔形成垂直堆叠。当规格填料由波纹板材形成时，垂直堆叠也可以彼此间隔开，使构成规整填料的波纹板相对于结构化填料的堆叠垂直堆叠旋转90°。填料的隔板或旋转布置禁止液体沿塔的横向水平方向移动。这通过规则填料的每个垂直堆叠促进恒定的液体和蒸汽流动特性，以抵抗整个塔的广泛的液体通道。

52. 发明授权

US5419137A Air separation process and apparatus for the production of high purity nitrogen 失效
标题翻译：用于生产高纯氮的空气分离工艺和设备
公开(公告)号：US5419137A
公开(公告)日：1995-05-30
申请号：US107433
申请日：1993-08-16
申请人： Paul A. Sweeney , Ramachandran Krishnamurthy
发明人： Paul A. Sweeney , Ramachandran Krishnamurthy
IPC分类号： F25J3/04 , F25J3/02
CPC分类号： F25J3/04303 , F25J3/04212 , F25J3/0443 , F25J2200/54 , F25J2215/44 , F25J2215/56 , F25J2220/42 , Y10S62/939
摘要： A process and apparatus for producing a high purity nitrogen vapor product from the rectification of air within high and low pressure columns operatively associated with one another by a condenser-reboiler. The high pressure column incorporates a sufficient number of theoretical stages to produce a high purity nitrogen vapor which after being condensed by the condenser-reboiler, serves to partially condense a lower purity nitrogen vapor tower overhead produced in the low pressure column through indirect heat exchanger. In such service, the condensed, high purity nitrogen vapor is at least partially vaporized and utilized as a product stream. Since there is no direct heat exchange with the high purity nitrogen produced within the high pressure column and the lower purity nitrogen vapor produced in the low pressure column, the low pressure column can incorporate fewer theoretical stages and therefore can be built at less expense than similar air separation plants of the prior art.
摘要翻译：用于通过冷凝器 - 再沸器彼此操作地相关联的高压塔和低压塔内的空气的整流来生产高纯度氮气蒸气产物的方法和装置。高压塔包含足够数量的理论阶段以产生高纯度氮气蒸气，其在被冷凝器再沸器冷凝后，用于部分地冷凝通过间接热交换器在低压塔中产生的低纯度氮蒸气塔架塔顶。在这种使用中，冷凝的，高纯度的氮蒸汽至少部分蒸发并用作产物流。由于与高压塔内产生的高纯度氮气和低压塔中产生的低纯度氮气蒸气没有直接的热交换，所以低压塔可以并入较少的理论级，因此可以以比类似的方式更低的成本来建造现有技术的空气分离装置。

53. 发明授权

US5353848A Method of filling gas cylinders 失效
标题翻译：填充气瓶的方法
公开(公告)号：US5353848A
公开(公告)日：1994-10-11
申请号：US053983
申请日：1993-04-27
申请人： Robert G. Gates , Shuen-Cheng Hwang , Ramachandran Krishnamurthy
发明人： Robert G. Gates , Shuen-Cheng Hwang , Ramachandran Krishnamurthy
IPC分类号： F17C5/06 , F17C13/02 , B65B3/04
CPC分类号： F17C13/025 , F17C5/06 , F17C2205/0326 , F17C2221/011 , F17C2221/014 , F17C2221/016 , F17C2221/017 , F17C2223/0123 , F17C2223/036 , F17C2227/04 , F17C2250/0434 , F17C2250/0636 , F17C2250/075 , F17C2265/025
摘要： Uniform dispersion of mixtures of gases of different densities in gas vessels is rapidly attained by introducing the gases into the vessels in the order of their increasing densities while the vessels are in the upright position. When the quantities of the denser gases are small relative to the quantity of the least dense gas the gases are preferably metered into the vessels by pressure measurements, with the final pressures of the more dense gases being determined by differential pressure gauge measurements.
摘要翻译：在容器处于直立位置时，通过将气体以其密度增加的顺序引入到容器中，可以快速获得不同密度的气体的混合物在气体容器中的均匀分散。当相对于最小致密气体的量的较稠密气体的量较小时，优选通过压力测量将气体计量到容器中，通过差压计测量确定更致密的气体的最终压力。

54. 发明授权

US5185139A Carbon dioxide production from combustion exhaust gases with nitrogen and argon by-product recovery 失效
标题翻译：来自燃烧废气的二氧化碳生产与氮气和氩气副产物回收
公开(公告)号：US5185139A
公开(公告)日：1993-02-09
申请号：US850535
申请日：1992-03-13
申请人： Ramachandran Krishnamurthy , Mark J. Andrecovich
发明人： Ramachandran Krishnamurthy , Mark J. Andrecovich
IPC分类号： B01D53/04 , B01D53/94 , C01B3/02 , C01B3/34 , C01B3/56 , C01B21/04 , C01B21/087 , C01B23/00 , C01B32/50 , C07C273/00 , C07C273/04 , C07C273/06 , F25J1/00 , F25J3/02 , F25J3/08
CPC分类号： F25J3/08 , C01B21/0466 , C01B23/00 , C01B3/025 , C01B31/20 , C07C273/04 , F25J3/0257 , F25J3/0266 , F25J3/0285 , C01B2210/0051 , F25J2200/02 , F25J2200/76 , F25J2200/94 , F25J2205/40 , F25J2205/60 , F25J2210/70 , F25J2215/42 , F25J2215/50 , F25J2220/44 , F25J2220/82 , F25J2240/02 , Y02C10/08 , Y02C10/12 , Y02P20/152 , Y10S62/924
摘要： The present invention is directed to a method for producing carbon dioxide and nitrogen from combustion exhaust gas containing less than about 10% oxygen by weight which comprises the steps of (a) treating the exhaust gas to remove particulate matter, (b) compressing the exhaust gas to a pressure in the range from about 25 psia to about 200 psia, (c) purifying the exhaust gas to remove trace contaminants, (d) separating the exhaust gas to produce a carbon dioxide rich fraction and a nitrogen rich fraction, (e) liquifying the carbon dioxide rich fraction and distilling off volatile contaminants to produce pure carbon dioxide, (f) purifying the nitrogen rich fraction to remove contaminants, and (g) cryogenically fractionally distilling the nitrogen rich fraction to produce pure nitrogen. In another embodiment, the invention is directed to a method for producing carbon dioxide, nitrogen, and argon from a combustion exhaust gas. The combustion exhaust gas in the present invention may be obtained from an ammonia plant reformer furnace and the nitrogen produced may be employed as a synthesis gas in the ammonia reactor.
摘要翻译：本发明涉及一种从含有小于约10重量％氧气的燃烧废气中生产二氧化碳和氮的方法，该方法包括以下步骤：（a）处理废气以除去颗粒物，（b）压缩废气气体到约25psia至约200psia范围内的压力，（c）净化废气以除去痕量污染物，（d）分离废气以产生富二氧化碳馏分和富氮馏分，（e ），将富含二氧化碳的馏分液化并蒸发挥发性污染物以产生纯二氧化碳，（f）纯化富氮馏分以除去污染物，和（g）低温分馏蒸馏富氮级分以产生纯氮。在另一个实施方案中，本发明涉及一种从燃烧废气中生产二氧化碳，氮和氩的方法。本发明的燃烧废气可以从氨厂重整炉获得，所生成的氮可以用作氨反应器中的合成气。

55. 发明授权

US5096470A Hydrogen and carbon monoxide production by hydrocarbon steam reforming and pressure swing adsorption purification 失效
标题翻译：通过烃蒸汽重整和变压吸附净化生产氢气和一氧化碳
公开(公告)号：US5096470A
公开(公告)日：1992-03-17
申请号：US622872
申请日：1990-12-05
申请人： Ramachandran Krishnamurthy
发明人： Ramachandran Krishnamurthy
IPC分类号： B01D53/047 , C01B3/56
CPC分类号： B01D53/047 , C01B3/56 , B01D2253/108 , B01D2256/16 , B01D2256/20 , B01D2257/504 , B01D2257/7022 , B01D2259/40003 , B01D2259/40052 , B01D2259/40069 , B01D2259/40079 , B01D2259/40081 , B01D2259/404 , B01D2259/41 , C01B2203/043 , C01B2203/047 , C01B2203/0475 , C01B2203/048 , C01B2203/0495 , Y02C10/06 , Y02C10/08 , Y02P20/152
摘要： The present invention is directed to a method for producing hydrogen and carbon monoxide from a feed mixture comprising hydrogen, carbon monoxide, carbon dioxide, and methane by (a) passing the feed mixture through a first pressure swing adsorption system comprising an adsorbent having a greater affinity for carbon dioxide, methane, and carbon-monoxide than for hydrogen, to separate hydrogen from the carbon dioxide, methane, and carbon monoxide, (b) desorbing carbon monoxide, (c) desorbing carbon dioxide and methane, (d) passing the carbon monoxide to a second pressure swing adsorption system comprising an adsorbent having a greater affinity for carbon monoxide than for hydrogen, carbon dioxide, and methane to separate the carbon monoxide from hydrogen, carbon dioxide, and methane, and (e) desorbing carbon monoxide from the adsorbent. In a second embodiment, the invention is directed to a method which comprises (a) pressure swing adsorption in a first stage comprising an adsorbent having a greater affinity for carbon monoxide than for hydrogen, carbon dioxide, and methane, and pressure swing adsorption in a second stage comprising an adsorbent having a greater affinity for carbon dioxide, methane, and carbon monoxide than for hydrogen.

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