期刊
COMPUTERS & CHEMICAL ENGINEERING
卷 84, 期 -, 页码 302-312出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2015.09.010
关键词
Polygeneration of hydrogen and power; Coal gasification; Dual chemical looping process; Simulation
资金
- Innovation Foundation of Southwest Petroleum University [CXJJ2015013]
This paper assesses, from a thermodynamic perspective, the conversion of coal to power and hydrogen through gasification simultaneously with a dual chemical looping processes, namely chemical looping air separation (CLAS) and water-gas shift with calcium looping CO2 absorption (WGS-CaL). CLAS offers an advantage over other mature technologies in that it can significantly reduce its capital cost. WGS-CaL is an efficient method for hydrogen production and CO2 capture. The three major factors, oxygen to coal (O/C), steam to coal (SIC) and CaO to coal (Ca/C) were analyzed. Moreover, the comparisons of this suggested process and the traditional processes including integrated gasification combined cycle (IGCC), integrated gasification combined cycle with carbon capture and storage (IGCC-CCS) and integrated gasification combined cycle with calcium-based chemical looping (IGCC-CaL) were discussed. And, the exergy destruction analysis of this suggested process has also been calculated. (C) 2015 Elsevier Ltd. All rights reserved.
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