Functionalization of MWCNT by –SO3H and –COOH Groups and Their Application as Solid Acidic Catalysts for Esterification of Waste Chicken Fat

Chemical and biochemical engineering quarterly

S. Afrashteh¹  M. lotfinezhad¹  A. Shokuhi Rad¹  H. Reza Ghorbani¹  E. Ganjian¹ 

关键词: waste chicken fat;    biodiesel;    MWCNT-SO3H;    MWCNT-COOH;    esterification;    transesterification;   

DOI  :  10.15255/CABEQ.2016.818

来源: Croatian Society of Chemical Engineers

【 摘 要 】

Abstract In the present research, the esterification of waste chicken fat (WCF) by two different homogeneous and heterogeneous catalysts has been studied. Sulfonate and carboxylate functionalized multiwall carbon nanotubes (MWCNT-SO3H, MWCNT-COOH) were applied as useful heterogeneous acidic catalysts during esterification of WCF. According to the experimental results, sulfonate-modified MWCNT showed more effective catalytic activity than did carboxylate-modified MWCNT. It was found that free fatty acid (FFA) of WCF in the single stage esterification of WCF had decreased down to less than 1 % in the presence of 25 % MWCNT-SO3H catalyst (according to the amount of FFA), reactor temperature of 90 °C with contact time of 3 h, and methanol/FFA molar ratio of 30:1. (This work is licensed under a Creative Commons Attribution 4.0 International License.)

【 授权许可】

Unknown