公开(公告)号：US4539019A

公开(公告)日：1985-09-03

申请号：US612821

申请日：1984-05-22

申请人： William R. Koch

发明人： William R. Koch

IPC分类号： B01D53/04 ,  B01D53/047

CPC分类号： B01D53/0476 ,  B01D53/0454 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/308 ,  B01D2256/12 ,  B01D2257/102 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40009 ,  B01D2259/404 ,  B01D2259/4145 ,  B01D53/053 ,  Y02C10/08

摘要： In a cyclic VSA system for air fractionation by selective adsorption of nitrogen from the feed air during an on-stream adsorption period in said cycle in which period an oxygen-enriched primary effluent discharged from the adsorption column is collected in a surge vessel, the duration of the on stream adsorption step is automatically controlled by a sensing device monitoring inventory of gas collected in said surge vessel. In an alternative embodiment the adsorbed nitrogen is withdrawn by vacuum desorption of the column and collected in a second surge vessel, from which second vessel a portion of the nitrogen is subsequently withdrawn for use in rinsing the nitrogen laden column, said second surge vessel being likewise equipped with inventory monitoring means operative for automatically controlling the extent of the rinsing step. Alternately, when nitrogen is collected in a second surge vessel, the system may be operated by inventory monitoring of both surge vessels or only one surge vessel wherein another technique is used to control the other surge vessel.

摘要翻译： 在循环VSA系统中，通过在所述循环中的在线吸附期间选择性吸附来自进料空气的氮进行空气分馏，其中从吸附塔排出的富氧初级流出物被收集在喘振容器中，持续时间 的流式吸附步骤通过监测在所述喘振容器中收集的气体的库存的感测装置自动控制。 在替代实施例中，吸附的氮气通过柱的真空解吸而被抽出并收集在第二喘振容器中，第二容器的一部分氮随后从该第二容器中取出以用于冲洗含氮负载柱，所述第二喘振容器同样 配备有用于自动控制漂洗步骤的程度的库存监控装置。 或者，当氮气收集在第二喘振容器中时，系统可以通过对两个缓冲容器或只有一个喘振容器的库存监控进行操作，其中使用另一种技术来控制另一个电涌容器。

公开(公告)号：US4869894A

公开(公告)日：1989-09-26

申请号：US038819

申请日：1987-04-15

申请人： Shoou-I Wang ,  William R. Koch

发明人： Shoou-I Wang ,  William R. Koch

IPC分类号： C01B3/16 ,  C01B3/48 ,  C01B3/56

CPC分类号： C01B3/16 ,  C01B3/48 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/0283 ,  C01B2203/0425 ,  C01B2203/0445 ,  C01B2203/0475 ,  C01B2203/0495 ,  C01B2203/0811 ,  C01B2203/0816 ,  C01B2203/0844 ,  C01B2203/0866 ,  C01B2203/0877 ,  C01B2203/0883 ,  C01B2203/1047 ,  C01B2203/1076 ,  C01B2203/1082 ,  C01B2203/1094 ,  C01B2203/1241 ,  C01B2203/127 ,  C01B2203/143 ,  C01B2203/147 ,  C01B2203/148 ,  C01B2203/82

摘要： High yields of hydrogen of high purity are obtained from a methane-rich gas stream, such as natural gas, by a particular combination of operations wherein the methane-rich gas undergoes primary steam reforming under less severe operating conditions including lower steam to carbon ratio, supplemented by secondary reforming with oxygen, the obtained hydrogen is separated from accompanying carbon dioxide in the reformer effluent by a special five step pressure swing adsorption sequence having the steps of selective CO.sub.2 adsorption at superatmospheric pressure, rinsing with desorbed carbon dioxide, depressuring and then evacuating without additional rinsing, followed by repressuring the bed with part of the recovered pure hydrogen.

摘要翻译： 通过特别的操作组合从富含甲烷的气流（例如天然气）获得高纯度的高产率氢，其中富甲烷气体在不太苛刻的运行条件下进行初级蒸汽重整，包括较低的蒸汽/碳比， 辅以二次重整用氧气，通过特殊的五步变压吸附顺序将得到的氢气与重整器流出物中伴随的二氧化碳分离，其具有在超大气压下选择性CO 2吸附的步骤，用解吸的二氧化碳漂洗，然后抽真空 而不需要额外的冲洗，然后用一部分回收的纯氢将床压制。

公开(公告)号：US4770676A

公开(公告)日：1988-09-13

申请号：US92746

申请日：1987-09-03

申请人： Shivaji Sircar ,  Ravi Kumar ,  William R. Koch ,  John VanSloun

发明人： Shivaji Sircar ,  Ravi Kumar ,  William R. Koch ,  John VanSloun

IPC分类号： C10L3/10 ,  B01D53/04 ,  B01D53/047 ,  C07C7/12

CPC分类号： B01D53/0462 ,  B01D53/047 ,  C07C7/12 ,  B01D2256/22 ,  B01D2256/24 ,  B01D2258/05 ,  B01D2259/40003 ,  B01D2259/40064 ,  B01D2259/40079 ,  B01D2259/40081 ,  B01D2259/4009 ,  B01D2259/402 ,  B01D2259/403 ,  B01D2259/404 ,  Y02C10/08 ,  Y02E50/346 ,  Y02P20/152

摘要： High purity methane and carbon dioxide are recovered from landfill gas in an integrated multi-column adsorption system having a temperature swing adsorption section (TSA) for pretreatment of the crude landfill gas to remove trace impurities therefrom, the thus cleaned gas being fed to a pressure swing adsorption section (PSA) for bulk separation of CO.sub.2 from methane. Regeneration of the impurity-laden adsorbent bed of the TSA section is carried out using part of the CO.sub.2 product gas recovered from the PSA section which gas is heated to thermal regeneration temperature.

摘要翻译： 在具有用于预处理粗填埋气体以从其中除去痕量杂质的变温吸附段（TSA）的综合多塔吸附系统中，从填埋气体回收高纯度甲烷和二氧化碳，将这样清洁的气体供给到压力 挥发吸附段（PSA），用于从甲烷中大量分离二氧化碳。 使用从PSA部分回收的部分CO 2产物气体再次将TSA部分的杂质负载吸附床再次加热至热再生温度。

公开(公告)号：US4971606A

公开(公告)日：1990-11-20

申请号：US433078

申请日：1989-11-06

申请人： Shivaji Sircar ,  Roger R. Conrad ,  William R. Koch

发明人： Shivaji Sircar ,  Roger R. Conrad ,  William R. Koch

IPC分类号： B01D53/04

CPC分类号： B01D53/047 ,  B01D53/0462 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2257/80 ,  B01D2259/4009 ,  B01D53/0446 ,  Y10S95/902

摘要： A method is disclosed for the thermal regeneration of an adsorbent which contains adsorbed components which can react with and damage the adsorbent at regeneration temperatures. The method comprises passing a hot regeneration gas through a bed of the adsorbent at a sufficiently high flow rate such that the residence time and reaction of the desorbed components in the adsorbent bed are minimized. For removing water from CaX or SrX zeolites, the flow of nitrogen regeneration gas is controlled so that the nitrogen gas residence time in the bed is less than one second.

摘要翻译： 公开了一种用于吸附剂的热再生的方法，该吸附剂含有可在再生温度下与吸附剂反应并损坏吸附剂的吸附组分。 该方法包括使热再生气体以足够高的流速通过吸附剂床，使得吸附床中解吸组分的停留时间和反应最小化。 为了从CaX或SrX沸石中除去水，控制氮气再生气体的流动，使得在床中的氮气停留时间小于1秒。

公开(公告)号：US4690696A

公开(公告)日：1987-09-01

申请号：US789002

申请日：1985-10-18

申请人： Shivaji Sircar ,  William R. Koch

发明人： Shivaji Sircar ,  William R. Koch

IPC分类号： B01J10/00 ,  B01D53/04 ,  B01D53/047 ,  C01B13/02 ,  C12N1/00

CPC分类号： C01B13/0259 ,  B01D53/047 ,  B01D2253/10 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2256/12 ,  B01D2257/50 ,  B01D2259/40003 ,  B01D2259/40056 ,  B01D2259/40064 ,  B01D2259/40079 ,  B01D2259/40081 ,  B01D2259/403 ,  C01B2210/005 ,  C01B2210/0051 ,  Y02C10/08 ,  Y02P20/152

摘要： The gaseous effluent from oxidation of organic material with oxygen-rich gas, which effluent contains CO.sub.2 (and possible CO) and unreacted residual oxygen, is compressed and charged to a PSA system for selective removal of the CO.sub.x, the thus purified oxygen-rich product from the PSA system being recycled to the oxidation reaction. In the PSA system comprised of a plurality of adsorption columns operated in parallel, each column in turn undergoes the steps of: (1) selective adsorption of CO.sub.2 from the feed gas; (2) depressuring to near ambient level; (3) purging with air to remove sorbed CO.sub.2 ; and (4) repressuring with part of the recycled effluent from step (1).

摘要翻译： 将含有CO 2（和可能的CO）和未反应的残余氧的富氧气体的有机材料氧化的气态流出物被压缩并加入到PSA系统中以选择性地除去CO x，这样纯化的富氧产物 从PSA系统循环到氧化反应。 在由多个平行操作的吸附塔组成的PSA系统中，每列依次进行以下步骤：（1）从进料气中选择性吸附CO 2; （2）降温至接近环境水平; （3）用空气吹扫除去吸附的二氧化碳; 和（4）用来自步骤（1）的一部分再循环流出物进行镇压。