Thermodynamic Simulation of CO2 Capture for an IGCC Power Plant using the Calcium Looping Cycle

✍ Scribed by Y. Li; C. Zhao; Q. Ren

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 634 KB
• Volume: 34
• Category: Article
• ISSN: 0930-7516
• DOI: 10.1002/ceat.201000384

✦ Synopsis

A CO 2 capture process for an integrated gasification combined cycle (IGCC) power plant using the calcium looping cycle was proposed. The CO 2 capture process using natural and modified limestone was simulated and investigated with the software package Aspen Plus. It incorporated a fresh feed of sorbent to compensate for the decay in CO 2 capture activity during long-term cycles. The sorbent flow ratios have significant effect on the CO 2 capture efficiency and net efficiency of the CO 2 capture system. The IGCC power plant, using the modified limestone, exhibits higher CO 2 capture efficiency than that using the natural limetone at the same sorbent flow ratios. The system net efficiency using the natural and modified limestones achieves 41.7 % and 43.1 %, respectively, at the CO 2 capture efficiency of 90 % without the effect of sulfation.