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Detailed plant layout studies of oxy-enriched CO2 pulverized coal combustion-based power plant with CO2 enrichment

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Abstract

Coal plays a vital role in electricity generation worldwide and is expected to contribute significantly to thermal power generation for the foreseeable future, especially in countries such as India. Carbon capture and sequestration technologies therefore become imperative in order to minimize CO2 emissions. A systematic and comprehensive assessment of the most promising of these technologies—consisting of supercritical boiler parameters, oxy-coal combustion, and low temperature flashing for simultaneous CO2 and SO2 capture—for typical Indian environmental and fuel conditions has been carried out in the present study. The results show that up to 93.3 % of CO2 and 95 % of SO2 generated during combustion can be captured while producing a sequestration-ready CO2 stream of 95.5 mol% purity compressed to a supercritical pressure of 110 bar. The energy penalty for this suite of technologies amounts to about 8.5 % drop in the net power plant efficiency to 33 % despite adopting efficiency measures such as supercritical boiler technologies.

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Authors and Affiliations

  1. Department of Chemical Engineering, IIT Madras, Chennai, 600036, India

    S. Jayanti & D. Kareemulla

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  1. S. Jayanti
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  2. D. Kareemulla
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Correspondence to S. Jayanti.

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Jayanti, S., Kareemulla, D. Detailed plant layout studies of oxy-enriched CO2 pulverized coal combustion-based power plant with CO2 enrichment. Clean Techn Environ Policy 18, 1985–1996 (2016). https://doi.org/10.1007/s10098-016-1125-z

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  • DOI: https://doi.org/10.1007/s10098-016-1125-z

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