TY - JOUR
T1 - Comparisons of a class of IGCC polygeneration/power plants using calcium/chemical looping combinations
AU - Wu, Wei
AU - Wen, Fang
AU - Chen, Jhao Rong
AU - Kuo, Po Chih
AU - Shi, Bin
N1 - Funding Information:
The authors gratefully acknowledge the financial support received from the National Natural Science Foundation under Grant No. 21878238, the Fundamental Research Funds for the Central Universities ( WUT:185220007 ) and also thank the Ministry of Science and Technology, Taiwan for its partial financial support of this research under grant MOST 106-2221-E-006-201 .
Publisher Copyright:
© 2018 Taiwan Institute of Chemical Engineers
PY - 2019/3
Y1 - 2019/3
N2 - To retrofit the traditional integrated gasification combined cycle (IGCC) plants, four plant designs using different combinations of the chemical-looping air separation (CLAS), calcium-looping (CaL), and syngas chemical-looping (SCL) are presented, where the modeling of calcium/chemical looping cycles in fast fluidized-bed and moving-bed reactors have been validated by experimental data. The IGCC polygeneration plants (Designs 1 and 2) and the IGCC power plants (Designs 3 and 4) are developed in an integration simulation platform, and their performances in terms of gross power efficiency (GPE), net thermal efficiency (NTE), carbon emission rate (CER) and water recycling rate (WRR) are evaluated. The comparison results show that (i) Design 1 possesses high thermal efficiency and low water consumption since the SCL cycle can improve NTE and increase WRR by producing the high-purity hydrogen and recovering water from exhaust gases, and (ii) Design 4 possesses high power efficiency and low CO 2 emissions since a combination of Rankine and Brayton cycles is integrated to increase GPE and CO 2 -rich gas is partially recycled in the CLAS cycle to decrease CER.
AB - To retrofit the traditional integrated gasification combined cycle (IGCC) plants, four plant designs using different combinations of the chemical-looping air separation (CLAS), calcium-looping (CaL), and syngas chemical-looping (SCL) are presented, where the modeling of calcium/chemical looping cycles in fast fluidized-bed and moving-bed reactors have been validated by experimental data. The IGCC polygeneration plants (Designs 1 and 2) and the IGCC power plants (Designs 3 and 4) are developed in an integration simulation platform, and their performances in terms of gross power efficiency (GPE), net thermal efficiency (NTE), carbon emission rate (CER) and water recycling rate (WRR) are evaluated. The comparison results show that (i) Design 1 possesses high thermal efficiency and low water consumption since the SCL cycle can improve NTE and increase WRR by producing the high-purity hydrogen and recovering water from exhaust gases, and (ii) Design 4 possesses high power efficiency and low CO 2 emissions since a combination of Rankine and Brayton cycles is integrated to increase GPE and CO 2 -rich gas is partially recycled in the CLAS cycle to decrease CER.
UR - https://www.scopus.com/pages/publications/85057007366
UR - https://www.scopus.com/pages/publications/85057007366#tab=citedBy
U2 - 10.1016/j.jtice.2018.11.010
DO - 10.1016/j.jtice.2018.11.010
M3 - Article
AN - SCOPUS:85057007366
SN - 1876-1070
VL - 96
SP - 193
EP - 204
JO - Journal of the Taiwan Institute of Chemical Engineers
JF - Journal of the Taiwan Institute of Chemical Engineers
ER -