화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터)
권호 19권 1호, p.142
발표분야 공정시스템
제목 Process modeling of a heat exchangeable multi-stage fluidized bed process for carbon capture
초록 A heat integrated multi-stage fluidized bed process for carbon capture is proposed and developed from the first principles. The process is divided in 3 cycles deployed in  LTC (low temperature cycle), MTC (middle temperature cycle), and HTC (high temperature cycle) to achieve internal heat integration. The endothermic heat of reaction to regenerate the partially carbonated particle in the regenerator of LTC and MTC is supplied from the exothermic heat of reaction generated in MTC and HTC. The K2CO3, MgO, and CaO are utilised as the absorbents in LTC, MTC, and HTC, respectively. The shrinking core model, two zone expanding grain model, and spherical grain model are used to describe the heterogeneous reaction between gas and solid phases and the reaction rate parameters are obtained from the relevant literature. The process simulation was conducted using Aspen Custom Modeller to which 60 Nm3/hr flue gas was subjected. The different reactor configurations of the combination of dense (bubbling fluidized) and dilute (fast fluidized) beds were exploited and reviewed in the aspects of process performances.
저자 김기웅1, 김대욱1, 이종엽1, 박용기2, 이득기3, 이원보1, 이광순1
소속 1서강대, 2한국화학(연), 3광주대
키워드 Carbon capture; Process simulation; Fluidized bed process
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