A Polygeneration System Based on Multi-Input Chemical Looping Combustion

Xiaosong Zhang, Sheng Li and Hongguang Jin
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Xiaosong Zhang: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Sheng Li: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Hongguang Jin: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China

Energies, 2014, vol. 7, issue 11, 1-12

Abstract: This paper proposes a polygeneration system based on a multi-input chemical looping combustion system, which generates methanol and electricity, through the use of natural gas and coal. In this system, the chemical looping hydrogen (CLH) production system and the coal-based methanol production system are integrated. A high quality fuel, natural gas, is used to improve the conversion ratio of coal. The Gibbs energy of the two kinds of fuels is fully used. Benefitting from the chemical looping process, 27% CO 2 can be captured without energy penalty. With the same outputs of methanol and electricity, the energy savings ratio of the new system is about 12%. Based on the exergy analyses, it is disclosed that the integration of synthetic utilization of natural gas and coal plays a significant role in reducing the exergy destruction of the new system. The promising results obtained in this paper may lead to a clean coal technology that will utilize natural gas and coal more efficiently and economically.

Keywords: chemical looping; hydrogen production; multi-input fossil fuel; polygeneration (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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