生物油离子交换树脂催化酯化试验研究

doi:10.3785/j.issn.1008-973X.2009.05.027

2009, Vol. 43

Issue (5): 926-930 DOI: 10.3785/j.issn.1008-973X.2009.05.027

能源与环境工程

生物油离子交换树脂催化酯化试验研究

王琦^1,2,姚燕²,王树荣¹,骆仲泱¹,岑可法¹

（1.浙江大学能源清洁利用国家重点实验室,浙江杭州 310027； 2.中国计量学院计量测试工程学院,浙江杭州 310018）

Experimental research on bio-oil catalytic esterification using cation exchange resins

WANG Qi^1,2, YAO Yan², WANG Shu-rong¹, LUO Zhong-yang¹, CEN Ke-fa¹

(1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;
2. College of Metrological Technology and Engineering, China Jiliang University, Hangzhou 310018, China)

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摘要：

生物油由于含有大量有机酸性物质而具有较强的腐蚀性,不利于其规模化利用.利用间歇式玻璃反应釜,在60 ℃、油醇质量比为1∶2、催化剂质量分数为20%和全回流条件下,研究了强酸型离子交换树脂催化的生物油酯化精制反应,目的是改变生物油的强酸性,提高其品质.结果表明,酯化后生物油的含水量和黏度下降,热值提高了42.7%；生物油中低级羧酸均得到不同程度的转化,产物分布发生较大变化,主要生成乙酸乙酯、原乙酸三乙酯等新成分,并提出了原乙酸三乙酯的生成机理.

Abstract:

Bio-oil contains a large amount of organic acids, which results in strong corrosion and restrains its application in large scale. Catalytic esterification of bio-oil was carried out in a total reflux mode over strongly acidic cation exchange resins in a glass batch reactor at 60 ℃. The mass ratio of oil/ethanol was 1∶2, and the catalyst mass fraction was 20% of the reaction solution. The results indicated that after esterification, the viscosity and water content of the bio-oil decreased obviously and the gross calorific value increased by 42.7%. The chemical composition of the upgraded bio-oil was different from that of the crude bio-oil, in which most of the organic acids were converted into esters. Besides, the formation mechanism of orthoacetic acid trimethyl ester was proposed．

出版日期: 2009-11-18

TK6

基金资助:

国家“973”重点基础研究发展规划资助项目（2007CB210204）；国家自然科学基金资助项目（90610035，50676085）.

通讯作者: 王树荣，男，教授. E-mail: srwang@zju.edu.cn

作者简介: 王琦（1979-)，男，黑龙江鹤岗人，博士，从事生物质制取液体燃料研究.

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引用本文:

王琦, 姚燕, 王树荣, 等. 生物油离子交换树脂催化酯化试验研究[J]. J4, 2009, 43(5): 926-930.

WANG Qi, TAO Yan, WANG Shu-Rong, et al. Experimental research on bio-oil catalytic esterification using cation exchange resins. J4, 2009, 43(5): 926-930.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2009.05.027 或 http://www.zjujournals.com/eng/CN/Y2009/V43/I5/926

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