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A Polygeneration System Based on Multi-Input Chemical Looping Combustion

Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
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This paper was previously presented at ECOS 2014—the 27st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Turku, Finland, 15–19 June 2014.
Energies 2014, 7(11), 7166-7177; https://doi.org/10.3390/en7117166
Received: 9 September 2014 / Revised: 30 October 2014 / Accepted: 4 November 2014 / Published: 6 November 2014
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% CO2 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. View Full-Text
Keywords: chemical looping; hydrogen production; multi-input fossil fuel; polygeneration chemical looping; hydrogen production; multi-input fossil fuel; polygeneration
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Zhang, X.; Li, S.; Jin, H. A Polygeneration System Based on Multi-Input Chemical Looping Combustion. Energies 2014, 7, 7166-7177.

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