| 第 46 卷第 4 期 |  | Vol. 46 No. 4 | | 2016 年 8 月 | Aug 2016 |
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所屬欄目：功能材料
桐油脂肪酸甲酯合成工藝與動(dòng)力學(xué)研究 |
| 李 科1，蔣劍春1，2*，聶小安1，2，陳 潔1，黃金瑞1，孫 凡3
（1.中國林業(yè)科學(xué)研究院 林產(chǎn)化學(xué)工業(yè)研究所；生物質(zhì)化學(xué)利用國家工程實(shí)驗室；國家林業(yè)局 林產(chǎn)化學(xué)工程重點(diǎn)開(kāi)放性實(shí)驗室；江蘇省生物質(zhì)能源與材料重點(diǎn)實(shí)驗室，江蘇 南京 210042；2. 中國林業(yè)科學(xué)研究院 林業(yè)新技術(shù)研究所，北京 100091；3. 南京林業(yè)大學(xué) 化工學(xué)院，江蘇 南京 210037） |
| 摘 要：通過(guò)堿催化桐油與甲醇的反應合成桐油脂肪酸甲酯，GC-MS測定桐油中桐油酸含量約為70.87%，計算得分子量為873.71；優(yōu)化工藝為：m（桐油）∶m（甲醇）=100∶27，催化劑用量1%（占油脂質(zhì)量），水浴70℃下反應90 min時(shí)轉化率達98.64%；通過(guò)動(dòng)力學(xué)研究得出桐油甲酯化的活化能Ea=28.26 kJ·mol-1。 |
| 關(guān)鍵詞：脂肪酸甲酯；桐油；油脂；生物柴油；動(dòng)力學(xué) |
| 中圖分類(lèi)號：TQ517 文獻標識碼：A 文章編號：1009-9212（2016）04-0048-04 |
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| Preparation and Kinetics of Methyl Esterification of Tung Oil |
| LI Ke1, JIANG Jian-chun1,2*, NIE Xiao-an1,2, CHEN Jie1, HUANG Jin-rui1, SUN Fan3
(1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab for Biomass Chemical Utilization; Key and Open Lab on Forest Chemical Engineering, SAF; Key Lab of Biomass Energy and Material, Jiangsu Province, SFA, Nanjing 210042, China; 2. Institute of New Technology of Forest, CAF, Beijing 100091, China; 3. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China) |
| Abstract：Using alkaline as catalysis, methyl eleostearate was synthesized by trans-esterification of methyl alcohol and tung oil. The main fatty acids in tung oil were identified using GC-MS, the contents of eleostearic acid was 70.87%. The optimal synthesis conditions were as following: raw material mass ratio of methyl eleostearateto carbinol was 100:27; dosage of catalyst was 1% of methyl eleostearate, reaction temperature was of 70℃, reaction time was of 90 min. A typical conversion rate of tung oil reached 98.64%; the activation energy was of 28.26 kJ·mol-1. |
| Key words：methyl ester; tung oil; biodiesel; dynamics |
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基金項目： 江蘇省生物質(zhì)綠色燃料與化學(xué)品重點(diǎn)實(shí)驗室資助（JSBGFU14007），中央級公益性科研院所基本科研業(yè)務(wù)費專(zhuān)項資助（CAFYBB2014MA011）。
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作者簡(jiǎn)介：李 科（1985-），男，江蘇南京人，助理研究員，碩士，研究方向：生物質(zhì)資源利用及精細化學(xué)品開(kāi)發(fā)研究（E-mail： liketaiping@163.com）。
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收稿日期：2016-06-13
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