乙醇-水体系在马铃薯粉吸附剂上的 气相吸附过程研究

›› 2012, Vol. 46 ›› Issue (4): 42-46.

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Study on Vapor Adsorption Process of Ethanol-water System on Potato Powder

LI Qing-ming^1,3, TAN Xing-he^1,3, SU Xiao-jun², XIONG Xing-yao², TIAN Kai-zhong²

1. College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China;2. Hunan Engineering Laboratory for Alcohol Fuels from Biomass, Changsha 410128, China;3. Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha 410128, China

Received:2011-09-07 Revised:1900-01-01 Online:2012-07-30 Published:2012-07-30

Abstract

Abstract: Experiments have been carried out in a fixed bed adsorption column (Φ 25 mm×900 mm) packed with potato powder. The effects of different adsorption process conditions were investigated. The results showed that under the experimental conditions, the production capacity and breakthrough time of potato for alcohol-water systems increases when the temperature falls, reduce, the size of adsorbent become smaller and the bed depth increases. The adsorption capacity was 205.1g/1 000 g adsorbent at 80℃, inlet ethanol concentration 94.5% (volume fraction), the size of adsorbent 245~350 μm, the bed depth 700 mm and vapor superficial velocity 3 mL/min. The potato powder is a potential biomaterial for removing water from ethanol-water mixtures.

Key words: potato powder, ethanol, water-vapor adsorption

CLC Number:

TQ35
TQ91

LI Qing-ming;TAN Xing-he;SU Xiao-jun;XIONG Xing-yao;TIAN Kai-zhong. Study on Vapor Adsorption Process of Ethanol-water System on Potato Powder[J]. , 2012, 46(4): 42-46.

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Study on Vapor Adsorption Process of Ethanol-water System on Potato Powder

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