화학공학소재연구정보센터
Energy Sources Part A-recovery Utilization and Environmental Effects, Vol.38, No.7, 960-966, 2016
Utilizing waste heat of the flue gas for post-combustion CO2 captureA comparative study for different process layouts
The inlet flue gas entering the absorber column must be similar to 40 degrees C and hence needs cooling. In this article, it is proposed that waste heat be recovered from the flue gas using a condensing heat exchanger. This recovered heat is utilized as partial supplement to subsequent heating in stripper during CO2 capture. System layoutsone for base case and two othershave been conceptualized. ASPEN Plus((R)) simulation results for the other two layouts are discussed for energy savings with respect to the base case. Results show that, for the other two layouts, reboiler heat duty decreases though carbon capture efficiency also decreases.