에탄 열분해 반응이 동반된 관형 반응기에서의 열전달 및 화학반응 특성 연구

다국어 초록 (Multilingual Abstract)

Thermal cracking is commonly modeled as plug flow reaction, neglecting the lateral gradients present. In this paper, 2-dimensional computational fluid dynamics including turbulence model and molecular reaction scheme are carried out. This simulation is solved by means of coupled implicit scheme for stable convergence of solution. The reactor is modeled as an isothermal tube, whose length is 1.2 m and radius is 0.01 m, respectively. At first, The radial profile of velocity and temperature at each point are predicted in its condition. Then the bulk temperature and conversion curve along the axial direction are compared with other published data to identify the reason why discussed variations of properties are important to product yield. Finally, defining a new non-dimensional number, Effect of interaction with turbulence, heat transfer and chemical reaction are discussed for design of thermal cracking furnace.

참고문헌 (Reference)

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2 Schmidt, L.D., "The Engineering of Chemical Reactions" Oxford university press 2005

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4 Vinod Kumar Srivastava, "Prediction of concentration and temperature profiles for non-isothermal ethane cracking in a pipe reactor" 한국화학공학회 23 (23): 539-531, 2006

5 Nan, Z., "CFD simulation of Propane Cracking Tube Using Detailed Radical Kinetic Mechanism" 21 (21): 1319-1331, 2013

6 Sundaram, K.M., "A Comparison of Simulation Models for Empty Tubular Reactors" 34 : 117-124, 1979