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Complete kinetic model for esterification reaction of lauric acid with glycerol to synthesize glycerol monolaurate

Chinese Journal of Chemical Engineering 2024年第6期70卷 211-221页

作者： Han-Qiao Hu Yue Zhang Ming Fan Yong Cai Guang-Wen Chu Liang-Liang Zhang Research Center of the Ministry of Education for High Gravity Engineering and Technology Beijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China petrochemical Research Institute China National Petroleum CorporationBeijing 102206China

Glycerol monolaurate(GML)is a widely used industrial chemical with excellent emulsification and antibacterial *** direct esterification of glycerol with lauric acid is the main method to synthesize *** this work,the kinetic process of direct esterification was systematically studied using p-toluenesulfonic acid as catalyst.A complete kinetic model of consecutive esterification reaction has been established,and the kinetic equation of acid catalysis was *** isomerization reactions of GML and glycerol dilaurate were *** was found that the reaction was an equilibrium reaction and the reaction rate was faster than the esterification *** kinetic equations of the consecutive esterification reaction were obtained by experiments as k_(1)=(276+92261Xcat)exp(-37720/RT)and k_(2)=(80+4413Xcat)exp(-32240/RT).The kinetic results are beneficial to the optimization of operating conditions and reactor design in GML production process.

关键词： Glycerol monolaurate p-toluenesulfonic acid Esterification Kinetics Mass transfer

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An efficient synthesis of 3-(guaiazulene-1-yl)succinimides by addition of guaiazulene to maleimides

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Chinese Chemical Letters 2011年第7期22卷 789-792页

作者： Dao Lin Wang Shao Fei Li Wei Li Yuan Feng Li Li Nan Lin Key Laboratory of Synthesis & Application of Functional Compound College of Chemistry & Chemical Engineering Bohai University Jinzhou 121001 China

A facile, efficient synthesis of 3-（guaiazulen-l-yl）succinimides was developed by Michael-type addition of guaiazulene to maleimides in the presence of p-toluenesulfonic acid under mild reaction conditions.

关键词： Guaiazulene Succinimidcs Michael-type addition p-toluenesulfonic acid

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production of Biodiesel from Sludge palm Oil by Esterification process

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Journal of Energy and power Engineering 2010年第1期4卷 11-17页

作者： A. Hayyan M.Z. Alam M.E.S. Mirghani N.A. Kabbashi N.I.N.M. Hakimi Y.M. Siran S. Tahiruddin Bioenvironmental Engineering Research Unit （BER U） Department of Biotechnology Engineering FacultY of Engineering International Islamic University Malaysia Kuala Lumpur 50728 Malaysia processing ＆ Engineering R＆D CenterDownstream Sime Darby Research Sdn Bhd. Lot 2664 Jalan Pulau Carey42960 Pulau Carey Kuala Langat Selangor Malaysia

Sludge palm oil （SpO） is an attractive feedstock and a significant raw material for biodiesel production. The use of SpO can lower the cost ofbiodiesel production significantly. In this study biodiesel fuel was produced from SpO by esterification process using p-toluenesulfonic acid （pTSA） as acid catalyst in different dosages in presence of methanol to convert free fatty acid （FFA） to fatty acid methyl ester （FAME）. Batch esterification process of SpO was carried out to study the influence of pTSA dosage （0.25-10% wt/wt）, molar ratio of methanol to SpO （6：1-20：1）, temperature （40-80 ℃）, reaction time （30-120 min）. The effects of those parameters on the yield of crude biodiesel and conversion of FFA to FAME were monitored. The optimum condition for batch esterification process was 0.75% wt/wt, 10：1 molar ratio, 60 ℃ temperature and 60 minutes reaction time.

关键词： Biodiesel esterification free fatty acid p-toluenesulfonic acid transesterification.

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