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Kinetic of Catalytic CO2 Gasification for Cyprus Coal by Gas-Solid Reaction Model
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  • Journal title : Korean Chemical Engineering Research
  • Volume 53, Issue 5,  2015, pp.653-662
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2015.53.5.653
 Title & Authors
Kinetic of Catalytic CO2 Gasification for Cyprus Coal by Gas-Solid Reaction Model
Hwang, Soon Choel; Lee, Do Kyun; Kim, Sang Kyum; Lee, Si Hyun; Rhee, Young Woo;
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In general, the coal gasification has to be operated under high temperature () and pressure (30~40 bar). However, to keep this conditions, it needs unnecessary and excessive energy. In this work, to reduce the temperature of process, alkali catalysts such as and were added into Cyprus coal. We investigated the kinetic of Cyprus char- gasification. To determine the gasification conditions, the coal (with and without catalysts) gasified with fixed variables (catalyst loading, catalytic effects of and , temperatures) by using TGA. When catalysts are added by physical mixing method into Cyprus coal the reaction rate of coal added 7 wt% is faster than raw coal for Cyprus char- gasification. The activation energy of coal added 7 wt% was calculated as 63 kJ/mol which was lower than raw char. It indicates that can improve the reactivity of char- gasification.
Catalyst;Low-rank Coal;Coal Gasification;Gas-solid Reaction Model;Activation Energy;
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