To lower the cost and energy required at the time of absorbing an object gas to be separated in an absorption solution in an absorption step of a chemical absorption method.
A gas containing an object gas to be separated is introduced into one side of a membrane of an absorption device 1 having a membrane module and an absorption solution is led to the other side to absorb the object gas to be separated from the gas containing the object gas through the membrane. In the absorption device 1, at least the absorption solution flow between the gas flow and the absorption solution flow is to be disturbed. The solution absorbing the object gas to be separated is introduced into a regeneration tower 4 via a heat exchanger 3 by a pump 2 and in the regeneration tower 4, the absorption solution is heated to release the object gas to be separated and regenerate the absorption solution. The released object gas to be separated is cooled and recovered. The regenerated absorption solution is sent via the heat exchanger 3 by a pump 7 and introduced into the absorption device 1 after cooling for recycling use.
COPYRIGHT: (C)2008,JPO&INPIT
YAGI YASUYUKI
MANO HIROSHI
YAMADA KOICHI
OKABE KAZUHIRO
RES INST INNOVATIVE TECH EARTH
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