화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX)
권호 21권 2호, p.1604
발표분야 공정시스템
제목 Modeling Bubble-Liquid Mass Transfer between CO2 and Aqueous Lime Solution in the Stirred Tank Reactor: Effects of Design and Operation Parameters
초록  The present study investigates the system in which carbon dioxide(CO2) gas bubble reacts with aqueous lime (Ca(OH)2) solution to produce CaCO3 precipitates. When this reaction system applied to Carbon Capture and Utilization (CCU) technology, it can create significant value not only by utilizing exhausted CO2 gas as a reactant to reduce the carbon emission quantity, but also by wide applications of its product in the field of construction and civil engineering works. To carry out this multiphase reaction, the gas-sparged stirred tank reactor is regarded as a suitable choice in the way that it can maximize the contact area of gas and liquid phase to facilitate the reaction. In order to design the reactor properly, it is very important to develop the accurate mass transport model by first-principle approach. In that respect, the purpose of this work is to rigorously model the mass transfer rate of a single bubble inside the reactor and analyze the influence of main parameters, such as bubble size, pressure and a solution level in the reactor, on the behavior of CO2 bubbles.  
저자 한종훈, 김민준, 안진주, 박성호, 나종걸, 박성언
소속 서울대
키워드 bubble; mass transfer; stirred reactor; Cabon Capture and Utilization
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