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    Method of separating target gas
    5.
    发明申请
    Method of separating target gas 审中-公开
    分离目标气体的方法

    公开(公告)号：US20050268780A1

    公开(公告)日：2005-12-08

    申请号：US10523506

    申请日：2003-08-06

    申请人： Toshihiko Sumida ,  Hiroaki Sasano ,  Masanori Miyake

    发明人： Toshihiko Sumida ,  Hiroaki Sasano ,  Masanori Miyake

    IPC分类号： B01D53/04 ,  B01D53/047 ,  B01D53/02

    CPC分类号： B01D53/047 ,  B01D53/261 ,  B01D2253/104 ,  B01D2253/108 ,  B01D2256/16 ,  B01D2257/102 ,  B01D2257/504 ,  B01D2257/7025 ,  B01D2257/80 ,  B01D2259/40015 ,  B01D2259/40024 ,  B01D2259/40026 ,  B01D2259/40032 ,  B01D2259/40045 ,  B01D2259/40052 ,  B01D2259/40071 ,  B01D2259/40075 ,  B01D2259/403 ,  Y02C10/08 ,  Y02C20/20

    摘要： The present invention is a gas separation method using a plurality of adsorption columns packed with an adsorbent. A cycle including a series of steps (adsorption, first pressure reduction, second pressure reduction, desorption, scrubbing, and repressurization) is repeated in each adsorption column. In the adsorption step, a gas mixture (G1) is introduced into a column (A) so as to cause the adsorbent to adsorb unnecessary components, and a product gas (G2) is led outside of the column (FIG. 3A). In the first pressure reduction step, the internal pressure of the column (A) is reduced by lead-out of a gas (G3) (FIG. 4A). In the second pressure reduction step, the internal pressure of the column (A) is further reduced by lead-out of the gas (FIG. 4B). In the desorption step, the unnecessary components are desorbed from the adsorbent and purged from the column (A) (FIG. 4C). In the scrubbing step, introduction of the gas (G3) and purging of the gas (G4) are performed simultaneously (FIG. 5A). In the repressurizing step, the internal pressure of the column (A) is raised by introducing the gas (G3) (FIG. 5B). The gas (G3) that is led out from the column (A) during the first pressure reduction step is introduced into the column (C) during the scrubbing step (FIG. 4A), and the gas (G3) that is led out from the column (A) during the second pressure reduction step is introduced into the column (C) during the repressurizing step (FIG. 4B).

    摘要翻译： 本发明是使用填充有吸附剂的多个吸附塔的气体分离方法。 在每个吸附塔中重复包括一系列步骤（吸附，第一次压力降低，第二次压力降低，解吸，洗涤和再加压）的循环。 在吸附工序中，将气体混合物（G 1）引入塔（A），使吸附剂吸附不需要的成分，将产物气体（G 2）引入塔外（图3A ）。 在第一减压工序中，塔（A）的内压通过气体导出（G 3）而减少（图4A）。 在第二减压步骤中，塔（A）的内部压力通过气体引出而进一步减小（图4B）。 在解吸步骤中，不必要的组分从吸附剂中解吸并从柱（A）中清除（图4C）。 在洗涤步骤中，同时进行气体（G 3）的引入和气体的净化（G 4）（图5A）。 在再加压步骤中，通过引入气体（G 3）使柱（A）的内压升高（图5B）。 在洗涤步骤（图4A）期间，在第一减压步骤中从塔（A）引出的气体（G 3）被引入塔（C），而气体（G 3） 在再加压步骤（图4B）期间，在第二减压步骤期间从塔（A）引出的塔（C）被引入塔（C）。

    Method for separating hydrogen gas
    8.
    发明授权
    Method for separating hydrogen gas 有权
    氢气分离方法

    公开(公告)号：US06913638B2

    公开(公告)日：2005-07-05

    申请号：US10451698

    申请日：2001-12-21

    申请人： Toshihiko Sumida ,  Hiroaki Sasano ,  Masanori Miyake

    发明人： Toshihiko Sumida ,  Hiroaki Sasano ,  Masanori Miyake

    IPC分类号： B01D53/047

    CPC分类号： B01D53/047 ,  B01D2253/1085 ,  B01D2253/25 ,  B01D2256/16 ,  B01D2257/108 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/7022 ,  B01D2259/4003 ,  B01D2259/40032 ,  B01D2259/40037 ,  B01D2259/40047 ,  B01D2259/40052 ,  B01D2259/40064 ,  B01D2259/40066 ,  B01D2259/40069 ,  B01D2259/40081 ,  B01D2259/403 ,  B01D2259/404 ,  Y02C10/08

    摘要： Product gas (Gpro) is separated from material gas (Gmat) by a PSA process utilizing a plurality of adsorption towers (A-C) each loaded with an adsorbent. The separation of the product gas (Gpro) is performed by repeating a cycle comprising an adsorption step, a decompression step, a desorption step, a cleaning step and a pressurization step. In the decompression step, remaining gas (Grem) as cleaning gas is introduced from one adsorption tower (C) to another adsorption tower (B). The amount of the remaining gas (Grem) introduced is 2 to 7 times the volume of the adsorbent loaded in the adsorption tower (B) as converted into volume at common temperature and under atmospheric pressure. To remove both of carbon monoxide and carbon dioxide from the material gas (Gmat) by a single kind of adsorbent, use is made of zeolite having a faujasite structure with a Si/Al ratio lying in a range of 1 to 1.5 and a lithium-exchange ratio of no less than 95%.

    摘要翻译： 产物气体（Gpro）通过利用多个吸附剂的多个吸附塔（A-C）的PSA方法与原料气体（Gmat）分离。 通过重复包括吸附步骤，减压步骤，解吸步骤，清洗步骤和加压步骤的循环来进行产物气体（Gpro）的分离。 在减压步骤中，作为清洗气体的残留气体（Grem）从一个吸附塔（C）引入另一个吸附塔（B）。 引入的剩余气体（Grem）的量是在常温和大气压下转化为体积的吸附塔（B）中吸附剂的体积的2至7倍。 为了通过单种吸附剂从原料气体（Gmat）中除去一氧化碳和二氧化碳，可以使用Si / Al比在1〜1.5范围内的八面沸石结构的沸石， 交换率不低于95％。