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Optimization of biodiesel production with HTCC/Na2SiO3/ECH hybrid membrane by response surface methodology

Authors： LIANG Mengzhu, SHAO Yixuan, HE Benqiao*, LI Jianxin, CHENG Yu

Units： State Key Lab. of Hollow Fiber Membrane Material and Processes, School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China

KeyWords： biodiesel; transesterification; organic–inorganic hybrid membrane; response surface methodology

ClassificationCode：TQ645

year,volume(issue):pagination： 2015,35(4):54-58

Abstract：

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.

Funds：

国家自然科学基金项目（21174104，21204063）

AuthorIntro：

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.

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