首页 | 本学科首页   官方微博 | 高级检索  
     


Two step biodiesel production from Calophyllum inophyllum oil: Studies on thermodynamic and kinetic modelling of modified β‐zeolite catalysed pre‐treatment
Authors:Vasanthakumar Sathyaselvabala  Senthilkumar Ponnusamy  Premkumar Manickam Periyaraman  Dinesh Kirupha Selvaraj  Vidhyadevi Thangaraj  Sivanesan Subramanian
Affiliation:1. Department of Chemical Engineering, Alagappa College of Technology, Anna University, Chennai 600 025, India;2. Department of Chemical Engineering, SSN College of Engineering, Chennai 603 110, India
Abstract:Biodiesel is one of the alternative fuels that can help in reducing oil dependence. β‐Zeolite was modified with phosphoric acid and the modified β‐zeolite was used as catalyst for the esterification of free fatty acids (FFA) present in pinnai oil and its effect on esterification reaction was studied. Influence of catalyst amount, methanol to oil ratio and temperature on specific reaction rate was modelled using Langmuir–Hinshelwood (LH) kinetics, pseudo first order kinetics and Arrhenius equation, respectively. The kinetic constant values obtained in LH kinetics show that the adsorption capacity of FFA on catalyst surface was approximately 23 times higher than that of methanol. From pseudo first order kinetic modelling it is found that methanol to oil molar ratio of 9 gives the optimum k value. Thermodynamic studies were also performed to prove the endothermic nature of Pβ catalysed esterification reaction. © 2011 Canadian Society for Chemical Engineering
Keywords:esterification  pinnai oil  kinetics  thermodynamics  biodiesel
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号