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THE CHARACTERISTICS OF HEAT TRANSFER AND CHEMICAL REACTION FOR THERMAL CRACKING OF ETHANE IN TUBULAR REACTOR

에탄 열분해 반응이 동반된 관형 반응기에서의 열전달 및 화학반응 특성 연구

  • Shin, C.Y. (Dept. of Mechanical Engineering, Graduate school, Kookmin Univ.) ;
  • Ahn, J. (School of Mechanical Engineering, Kookmin Univ.)
  • 신찬영 (국민대학교 일반대학원 기계공학과) ;
  • 안준 (국민대학교 기계공학부)
  • Received : 2016.02.16
  • Accepted : 2016.03.07
  • Published : 2016.03.31

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.

Keywords

References

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