CHEN Xinming, SHI Shaoping, YAN Shu, et al. Application of CO2 capture technology before burning in IGCC power generation system[J]. CIESC Journal, 2014, (8): 3193-3201. DOI: 10.3969/j.issn.0438-1157.2014.08.047.
CHEN Xinming, SHI Shaoping, YAN Shu, et al. Application of CO2 capture technology before burning in IGCC power generation system[J]. CIESC Journal, 2014, (8): 3193-3201. DOI: 10.3969/j.issn.0438-1157.2014.08.047.DOI:
Integrated gasification combined cycle (IGCC) power generation is an advanced and next generation coal-fired power generation technology
can provide clean and low-cost electricity for the users
and will play an important role in the future development of high-efficiency and zero-emissions power plants. CO2 capture technology before burning should be very suitable for IGCC system. Based on IGCC technical features
a CO2 capture process before burning
consisting of MDEA acid gas removal and wet oxidation sulfur recovery steps
is proposed in this paper. The feasibility study of application in IGCC system is verified by process simulation calculation. The results show that this process works well for acid gas removal
and the efficiency for separating CO2 and H2S from syngas can reach 99% and 98.5% respectively. However
the overall efficiency of power supply by IGCC
obtained by calculation
declines about 10 percent from 45.35% to 35.16%
when the CO2 capture process before burning is introduced into IGCC system. The three main factors of decrease of total efficiency are steam consumption
fuel chemical energy loss and new auxiliary power increase
and they could be used for determining optimization direction.