Method for efficiently obtaining an adsorbable gas from a gas containing
a low concentration of the adsorbably gas
    6.
    发明授权
    Method for efficiently obtaining an adsorbable gas from a gas containing a low concentration of the adsorbably gas 失效
    从含有可吸收气体的低浓度的气体中有效地获得可吸收气体的方法

    公开(公告)号:US5125935A

    公开(公告)日:1992-06-30

    申请号:US613702

    申请日:1990-11-26

    IPC分类号: B01D53/04

    摘要: The method of the present invention is one for efficiently obtaining a condensed adsorbable gas from a gas containing a low concentration of the adsorbable gas by subjecting the original gas to the process of adsorption and desorption using adsorption columns packed with an adsorbent and then condensing the exhausted desorbed gas containing a higher concentration of the adsorbable gas, in which the adsorption column after adsorption is subjected to desorption after a desorbed gas exhausted from the second adsorption column to be mentioned later is introduced into the adsorption column to make the adsorbable gas contained in the desorbed gas be adsorbed by the column; an exhaust gas exhausted during the condensation of a desorbed gas and containing the noncondensed adsorbable gas is introduced into the second adsorption column to make the adsorbable gas contained in the exhaust gas be adsorbed by the column; and the desorbed gas containing the adsorbable gas and exhausted during the desorption of the second column which is performed in the next operation of adsorption and desorption is introduced into the adsorption column after adsorption. This method is excellent because of a simple operation, and a small thermal energy required during desorption.

    摘要翻译: PCT No.PCT / JP90 / 00343 Sec。 371日期1990年11月26日 102(e)1990年11月26日日期PCT 1990年3月15日PCT PCT。 出版物WO90 / 11117 日本1990年10月4日。本发明的方法是一种用于通过使原始气体进行吸附和解吸的过程,用含有低浓度可吸附气体的气体有效地获得冷凝的可吸附气体, 然后使含有较高浓度可吸附气体的排出的脱附气体冷凝,吸附后的吸附塔在从后述的第二吸附塔排出的解吸气体被吸入后进行解吸, 使解吸气体中所含的可吸附气体被柱吸附; 在脱附气体的冷凝中排出并含有非凝结的可吸附气体的排气被引入第二吸附塔,使废气中所含的可吸附气体被塔吸附; 在吸附和解吸的下一次操作中进行的第二塔的解吸时,含有可吸附气体的解吸气体被排出,吸附后被引入吸附塔。 该方法由于操作简单,解吸过程中所需的热能小,因而极好。