Simulation Research on Performance of IGCC System with Brown Coal/Liquid CO2 Slurry Feed

Zhi Xiao Zhang; Shuang Wu Wang

doi:10.4028/www.scientific.net/AMM.521.691

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 521Simulation Research on Performance of IGCC System...

Simulation Research on Performance of IGCC System with Brown Coal/Liquid CO₂ Slurry Feed

Abstract:

A simulation research on IGCC process adopting the technique of coal/liquid CO₂ (CO₂(l)) slurry was proposed. A model of a brown coal slurry fed IGCC system with CO₂ capture unit was developed in ASPEN Plus. This model was used to investigate the thermal performance of the IGCC process under different operating conditions. Three kinds of Chinese brown coal were employed in this work. The simulation results show excellent performance of IGCC system when brown coal/CO₂(l) slurry feed in gasification system. Enhanced carbon conversion rate and net plant efficiency can be observed with less coal consumption meanwhile. H₂O/CO ratio decreases because of more CO and less H₂O in the syngas with brown coal /CO₂(l) slurry feeding. The net CO₂ output from IGCC system also decreases as the advantage of CO₂ capture and reuse in coal/CO₂(l) slurry.

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Periodical:

Applied Mechanics and Materials (Volume 521)

Pages:

691-695

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.521.691

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Online since:

February 2014

Authors:

Zhi Xiao Zhang*, Shuang Wu Wang

Keywords:

Brown Coal, Gasification, IGCC, Liquid CO₂ Slurry

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* - Corresponding Author

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