METHOD AND APPARATUS FOR MICRO HYDROCYCLONE PURIFICATION FOR FLUE GAS CARBON DIOXIDE CAPTURE SYSTEM

摘要

Provided are a method and an apparatus for micro hydrocyclone purification for a flue gas carbon dioxide capture system. The method comprises: performing gas liquid micro hydrocyclone separation with ultralow pressure drop on scrubbed flue gas to remove aerosol particulates entrained in the flue gas; performing gas liquid micro hydrocyclone separation with ultralow pressure drop on off gas vented from the top of an absorption column to remove entrained aerosol particulates; performing gas liquid micro hydrocyclone separation with ultralow pressure drop on cooled regeneration gas to remove entrained aerosol particulates; and performing liquid solid and liquid liquid two stage micro hydrocyclone separation on a mixed amine solution lean for carbon dioxide discharged from a regeneration column to remove entrained solid particulates and machine oil. The apparatus comprises: a water scrubbing column (1) rotational flow separators (2 7 12) liquid solid micro hydrocyclone separator sets (3 1 3 2 3 3 8 1 8 2 8 3) a water scrubbing tank (4) a absorption column (6) a regeneration column (9) liquid solid micro hydrocyclones (15 16) and liquid liquid micro hydrocyclones (17 18).