A NOVEL METHOD OF CO2 CAPTURE FROM HIGH-TEMPERATURE GASES

Lithium zirconate powder reacts immediately with ambient CO2 in the ra nge of 450 to 550 degrees C. Moreover, the products react and return r eversibly to lithium zirconate at temperatures above 650 degrees C. Ut ilizing this reaction, the possibility of a CO2 separation system whic h operates at around 550 degrees C is suggested. A CO2 separation proc ess operable at temperatures beyond 500 degrees C may have a special b enefit, because the separation can be achieved directly during the fue l reforming process, where high CO2 concentration is expected.