生物油中络合萃取乙酸的研究

摘要采用三正辛胺（TOA）作为络合剂，异辛醇和煤油分别作为助溶剂和稀释剂，对生物油中的乙酸进行了络合萃取研究。考察了TOA体积分数、异辛醇浓度、萃取剂与生物油轻馏分体积比以及温度对乙酸萃取率的影响，结果表明：温度为0 ℃，萃取体系为40%TOA+40%异辛醇+20%煤油(各组分浓度均为体积分数，下同)，萃取剂与生物油轻馏分体积比为3∶1时，乙酸的一次萃取率较高，可达74.6%。

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	吕东灿
	刘运权
	王夺

关键词： TOA 生物油乙酸络合萃取

Abstract： Complexation extraction with trioctylamine (TOA) as solvent for the recovery of acetic acid from bio-oil was studied. The effects of TOA concentration, iso-octyl alcohol concentration, volume ratio of extractant/distillate and temperature on extraction efficiency were examined. Experimental results indicated that the extraction efficiency was the highest with 40% TOA+40% iso-octyl alcohol+20% kerosene and 3∶1 volume ratio of extractant/distillate at the temperature of 0 ℃. And an extraction efficiency of 74.6% for acetic acid was achieved in a single-equilibrium-stage extraction under this optimal condition.

Keywords： TOA bio-oil acetic acid reactive extraction

Received 2013-02-27;

Fund:

国家高技术研究发展计划（863）资助项目（2012AA051801）。

Corresponding Authors: 刘运权，电话：（0592）5952780，E-mail：yq_liu@xmu.edu.cn。 Email: yq_liu@xmu.edu.cn

About author: 吕东灿(1988-)，女，博士研究生，现从事生物油精制与产品分离研究。

引用本文:

吕东灿, 刘运权, 王夺.生物油中络合萃取乙酸的研究[J]. 化学工业与工程, 2013,30(6): 32-36

LYU Dong-Can , LIU Yun-Quan, WANG Duo.Extracting Acetic Acid from Bio-Oil Using TOA[J]. Chemcial Industry and Engineering, 2013,30(6): 32-36