DRY SORBENT CO2 CAPTURING DEVICE USING MULTI SORBENTS

摘要

PURPOSE: A dry-type carbon dioxide collecting device is provide to increase absorption rate exceptionally, and to save energy through heat exchange using the temperature difference at front and back ends of a dry-type carbon dioxide collecting unit. CONSTITUTION: A dry-type carbon dioxide collecting device(100) comprises at least two dry-type carbon dioxide collecting units. The dry-type carbon dioxide collecting unit comprises a collection reactor(104), collection cyclones(106, 122), regeneration reactors(110, 126), and pretreatment reactors(116, 132). The collection reactor collects carbon dioxide by contacting a solid absorber with exhaust gas which contains carbon dioxide supplied from outside. The collection cyclone is connected to the collection reactor, discharges gas, and separates only the solid absorber collecting carbon dioxide. The regeneration reactor is supplied with the solid absorber which collects carbon dioxide from the collection cyclone, and separates carbon dioxide collected in the solid absorber by using fluidized gas. The pretreatment reactor is connected to the regeneration reactor, and feeds the solid absorber in which carbon dioxide is separated back to the collection reactor after cooling.