Dry carbon dioxide capturing device using multi sorbents

Abstract

Disclosed is a dry COcapturing device using multi sorbents so as to maintain the sorption rate for exhaust gas containing CO. The dry carbon dioxide (CO) capturing device comprises at least two dry carbon dioxide (CO) capturing parts comprising: a first and second recovery reactorsandto recover COby contacting a solid sorbent with exhaust gas; a first and second recovery cyclonesandconnected to the recovery reactors; a first and second regeneratorsandconnected to the recovery cyclones; and a first and second pre-treatment reactorsandconnected to the regenerators through sorbent supply lines. The first and second dry carbon dioxide (CO) capturing parts are connected to each other so as to feed an isolated gas, which is separated with the solid sorbent in the first recovery cycloneof the first dry COcapturing part, to the second dry COcapturing part through the exhaust gas supply line, and different solid sorbents are used in the first and second COcapturing parts.