Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Estimation of Diffusion Coefficient and Mass Transfer Coefficient in Microwave-Assisted Drying of Paclitaxel for Removal of Residual Methylene Chloride

잔류 메틸렌 클로라이드 제거를 위한 마이크로웨이브를 이용한 파클리탁셀건조에서 확산계수 및 물질전달계수 추정

  • Kim, Jin-Hyun (Department of Chemical Engineering, Kongju National University)
  • 김진현 (공주대학교 화학공학부)
  • Received : 2018.03.06
  • Accepted : 2018.04.18
  • Published : 2018.06.01
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Abstract

In this study, an effective diffusion coefficient and mass transfer coefficient were investigated in microwave-assisted drying of paclitaxel for removal of residual methylene chloride. At all the temperatures (35, 45, and $55^{\circ}C$), a large amount of the residual methylene chloride was initially removed during the drying, and the drying efficiency increased when increasing the drying temperature. The effective diffusion coefficient ($1.299{\times}10^{-13}{\sim}2.571{\times}10^{-13}m^2/s$) and mass transfer coefficient ($1.625{\times}10^{-11}{\sim}4.857{\times}10^{-11}m/s$) increased with increasing drying temperature. The small Biot number (0.0100~0.0151) indicated that the process of mass transfer was externally controlled.

본 연구에서는 잔류 메틸렌 클로라이드 제거를 위한 마이크로웨이브를 이용한 파클리탁셀 건조에서 유효확산계수 및 물질전달계수를 조사하였다. 모든 온도(35, 45, $55^{\circ}C$)에서 건조 초기에 많은 양의 잔류 메틸렌 클로라이드가 제거되었으며 건조 온도가 증가할수록 건조 효율은 증가하였다. 건조 온도가 증가할수록 파클리탁셀의 유효확산계수($1.299{\times}10^{-13}{\sim}2.571{\times}10^{-13}m^2/s$)와 물질전달계수($1.625{\times}10^{-11}{\sim}4.857{\times}10^{-11}m/s$)는 증가하였다. 또한 낮은 Biot 수(0.0100~0.0151)로부터 건조의 진행이 주로 파클리탁셀의 외부확산에 의해 조절됨을 알 수 있었다.

Keywords

References

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