Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Experimental Distillation of Ethanol-Propanol Mixture Using a Horizontal Column

수평증류를 이용한 에탄올-프로판올 혼합물의 증류실험

  • 김병철 (동아대학교 화학공학과) ;
  • 김영한 (동아대학교 화학공학과)
  • Received : 2012.08.22
  • Accepted : 2012.10.22
  • Published : 2013.02.01
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Abstract

A lab-sized distillation experiment was conducted using small-size packings and a horizontal distillation column. The 6.7 mm Raschig ring type packings of stainless steel and a 40 mm glass column were used, and five independent electric heaters were installed in the axial direction to adjust the column inside temperature separately. The temperature was continuously distributed along the column length to provide equivalent equilibrium to the temperature for the separation. From the experimental results, a larger HETP of the column than the vertical distillation column was obtained, but it was found that the practical separation with proper processing capacity and separation efficiency was available.

소형 충전물을 이용한 수평형 증류 장치를 제작하여 실험실 규모의 증류실험을 실시하였다. 직경 6.7 mm Raschig 링 형태의 스테인레스 스틸 충전물을 넣은 40 mm 직경의 유리관을 증류탑으로 사용하였다. 증류관의 길이 방향으로 5개의 독립된 전기가열기를 배열하여 증류관 내부 온도를 분리 조절할 수 있도록 하였다. 증류관 내의 온도가 길이에 따라 연속적으로 변화하도록 조절함으로써 각각의 온도에 상응하는 기-액 평형을 형성하여 분리가 가능하도록 하였다. 증류실험의 결과 증류관의 증류단 상당길이(HETP)가 수직형 증류관에 비해 큰 것을 알았으며, 실용화가 가능한 처리용량과 분리효율을 얻었다.

Keywords

References

  1. Lee, M. Y. and Kim, Y. H., "Design of Thermally Coupled Distillation Process Utilizing Existing Columns," Korean Chem. Eng. Res.(HWAHAK KONGHAK), 46(5), 1017-1022(2008).
  2. Hwang, K. S., Kim, B. C. and Kim, Y. H., "Experimental Evaluation of a Modified Fully Thermally Coupled Distillation Column," Korean J. Chem. Eng., 27(4), 1056-1062(2010). https://doi.org/10.1007/s11814-010-0205-8
  3. Choi, Y. M., Woo, D. S., Cho, H. and Han, M. W., "Control of Reactive Dividing Wall Column for the Recovery of Lactic Acid," Korean Chem. Eng. Res.(HWAHAK KONGHAK), 49(3), 306- 313(2011). https://doi.org/10.9713/kcer.2011.49.3.306
  4. Kim, B. C., Cho, T. J. and Kim, Y. H., "Development of Small Distillation Column for Performance Evaluation of Distillation Column," Korean Chem. Eng. Res.(HWAHAK KONGHAK), 48(5), 668-671(2010).
  5. Tsai, R. E., Schultheiss, P., Krttner, A., Lewis, J. C., Seibert, A. F., Eldridge, R. B. and Rochelle, G. T., "Influence of Surface Tension on Effective Packing Area," Ind. Eng. Chem. Res., 47, 1253-1260 (2008). https://doi.org/10.1021/ie070780l
  6. Orlando, Jr., A. E., Medina, L. C., Mendes, M. F. and Nicolaiewsky, E. M. A., "HETP Evaluation of Structured Packing Distillation Column," Brazil. J. Chem. Eng., 26, 619-633(2009).
  7. Seok, D. R. and Hwang, S. T., "Zero-gravity Distillation Utilizing the Heat Pipe Principle (micro-distillation)," AIChE J., 31, 2059- 2065(1985). https://doi.org/10.1002/aic.690311215
  8. Sundberg, A., Uusi-Kyyny, P. and Alopaeus, V., "Novel Microdistillation Column for Process Development," Chem. Eng. Res. Des., 87, 705-710(2009). https://doi.org/10.1016/j.cherd.2008.09.011