响应面法优化HTCC/Na2SiO3/ECH杂化膜催化制备生物柴油
作者:梁孟珠,邵译萱,何本桥,李建新,程 煜
单位: 天津工业大学材料科学与工程学院 中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津市西青区宾水西道399号,邮编,300387
关键词: 生物柴油;酯交换反应;有机无机杂化膜;相应面分析
DOI号:
分类号: TQ645
出版年,卷(期):页码: 2015,35(4):54-58

摘要:
以环氧氯丙烷(ECH)为连接剂,将硅酸钠(Na2SiO3)化学固定于壳聚糖季铵盐(HTCC)分子链上,制得一种硅酸钠/壳聚糖季铵盐有机无机杂化膜(HTCC/Na2SiO3/ECH),作为固体碱催化剂催化大豆油和甲醇进行酯交换反应制备生物柴油, 该膜显示出良好的重复使用性,并根据中心组合响应面法对影响生物柴油转化率的条件(反应温度、反应时间、醇油质量比以及催化剂用量)进行优化,确定催化膜催化酯交换反应制备生物柴油的二阶多项式模型和反应因素影响显著性顺序。结果表明:反应温度55 ℃,醇油摩尔量比6:1,催化膜含量为油重的4 wt.%,反应时间60 min,预测转化率为98.0%,实际值为97.1%,与实际值基本相符,表明优化模型有效可靠。 
 
An organic–inorganic hybrid membrane (HTCC/Na2SiO3/ECH) containing sodium silicate and N-[(2-Hydroxy-3-trimethylammonium)propyl] chitosan chloride (HTCC) with epichlorohydrin (ECH) as cross-linker was employed as a heterogeneous base catalyst for biodiesel production prepared from soybean and methanol. HTCC/Na2SiO3/ECH membranes exhibited the excellent catalytic stability. The factors of temperature, reaction time, molar ratio of methanol to oil and reaction time were optimized by the response surface methodology with HTCC/Na2SiO3/ECH membranes. A second order quadratic equation and the significant sequence of factors were built. The results showed that the optimum condition were: temperature at 55 ℃, methanol/oil molar ratio of 6:1, catalyst amount of 4 wt.% and reaction time of 60 min. The predicted conversion rate to biodiesel was 98.0%, which was in consistent with the experimental value (97.1%). Thus, the regression equation was valid and reliable.

 

基金项目:
国家自然科学基金项目(21174104,21204063)

作者简介:
梁孟珠(1989-),女,河南人,硕士,天津工业大学材料工程专业,研究方向:膜催化及生物柴油制备.

参考文献:
[1] 卢定强, 段柳, 陈建辉, 等. 响应曲面法优化固体碱催化制备生物柴油工艺 [J]. 可再生能源, 2008, 26 (4): 41-47.
[2] 杨威, 李仲谨, 王帆, 等. 应用响应曲面法优化β-环糊精聚合物微球的合成工艺 [J]. 陕西科技大学学报(自然科学版), 2010, 28 (6): 35-38.
[3] 齐涛, 鲁厚芳, 蒋炜, 等. Zn/Al复合氧化物催化生物柴油酯交换反应 [J]. 中国粮油学报, 2010, 25 (2): 73-78.
[4] Ma F, Hanna M A. Biodiesel production: A review [J]. Bioresour. Technol, 1999, 70: 1-15.
[5] 鞠庆华. 有机碱催化制备生物菜油模拟体系的研究 [D]. 南京: 南京工业大学. 2006. 11- 59.
[6] 胡凯. 固体碱催化剂催化菜籽油酷交换反应制备生物柴油研究 [D]. 浙江: 浙江大学. 2007. 1-58.
[7] 刘 璇, 高傲然, 何本桥, 等. 季铵化聚丙烯腈的制备及其催化制备生物柴油[J]. 高分子学报, 2014, 7: 945-948.
     [8] Knothe G. Monitoring a progressing transesterification reaction by fiber-optic near infrared spectroscopy with correlation to 1H nuclear magnetic resonance spectroscopy [J]. J. Am. Oil Chem. Soc., 2000, 10 (77): 489–493.
     [9] Tsuchido T, Katsui N, Takeuchi A, et al. Destruction of the outer membrane permeability barrier of Escherichia coli by heat treatment [J]. Applied and Environment Microbiology, 1985, 50 (2): 298-303.
[10] Chen F, Kawasaki J, Naka Y, et al. Computational Studies of the Countercurrent Multistage Extraction-Coupled Esterification Process of Oleic Acid with Methanol Using Excess Methanol as Extractant [J]. Chemical Engineering Research and Design, 2004, 82 (5): 599-604.
[11] Montgomery DC. Design and Analysis of Experiments [M]. New York: John Wiley and Sons, 1984. 1-699.
 

服务与反馈:
文章下载】【加入收藏

《膜科学与技术》编辑部 地址:北京市朝阳区北三环东路19号蓝星大厦 邮政编码:100029 电话:010-64426130/64433466 传真:010-80485372邮箱:mkxyjs@163.com

京公网安备11011302000819号