Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study on Cleaning Process for Benzene Recovery in Activated Carbon Bed

활성탄을 충전한 흡착탑에서 벤젠 회수를 위한 세정공정의 연구

  • Kang, Sung-Won (Department of Chemical Engineering, Hongik University) ;
  • Min, Byong-Hoon (Department of Chemical Engineering, Suwon University) ;
  • Suh, Sung-Sup (Department of Chemical Engineering, Hongik University)
  • 강성원 (홍익대학교 공과대학 화학공학과) ;
  • 민병훈 (수원대학교 공과대학 화학공학과) ;
  • 서성섭 (홍익대학교 공과대학 화학공학과)
  • Published : 2002.06.30
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Abstract

Experimental Study was carried out for benzene desorption by purge gas or evacuation in an activated carbon bed. As purge gas flow rate increased, desorption rate increased due to the higher interstitial linear gas velocity. For various purge gas flow rates, desoption curves almost got together if they were plotted against dimensionless time. At a higher flow rate, mass transfer zone became narrower. Temperature drop in the bed was more fast and severe at higher flow rates and higher outer temperature. It was found out that desorption was almost completed when the temperature in the drop of the bed returned to the initial temperature before temperature drop. Desorption by vacuum purge was completed in shorter time than desorption by purge gas. Countercurrent purge was more effective than cocurrent purge.

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References

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