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http://dx.doi.org/10.7316/KHNES.2012.23.3.285

Comparison of Quench Methods in The Coal Gasification System with Carbon Capture  

Lee, Joong-Won (Technology Commercialization Office, KEPCO Research Institute)
Kim, Ui-Sik (Technology Commercialization Office, KEPCO Research Institute)
Ko, Kyung-Ho (Technology Commercialization Office, KEPCO Research Institute)
Chung, Jae-Hwa (Technology Commercialization Office, KEPCO Research Institute)
Hong, Jin-Pyo (Technology Commercialization Office, KEPCO Research Institute)
Publication Information
Journal of Hydrogen and New Energy / v.23, no.3, 2012 , pp. 285-292 More about this Journal
Abstract
The integrated gasification combined cycle (IGCC) system is well known for its high efficiency compared with that of other coal fueled power generation system. IGCC offers substantial advantages over pulverized coal combustion when carbon capture and storage (CCS) is required. Commercial plants employ different types of quenching system to meet the purpose of the system. Depending on that, the downstream units of IGCC can be modeled using different operating conditions and units. In case with $CO_2$ separation and capture, the gasifier product must be converted to hydrogen-rich syngas using Water Gas Shift (WGS) reaction. In most WGS processes, the water gas shift reactor is the biggest and heaviest component because the reaction is relatively slow compared to the other reactions and is inhibited at higher temperatures by thermodynamics. In this study, tehchno-econimic assessments were found according to the quench types and operating conditions in the WGS system. These results can improve the efficiency and reduce the cost of coal gasification.
Keywords
Coal gasification; Water gas shift reaction; Quench method; ASPEN PLUS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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