标题:Activity of the carbon-based heterogeneous acid catalyst derived from bamboo in esterification of oleic acid with ethanol
作者:Zhou, Yan; Niu, Shengli; Li, Jing
作者机构:[Zhou, Yan; Niu, Shengli] Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China.; [Li, Jing] Shandong Univ, Sch Chem & Che 更多
通讯作者:Niu, Shengli
通讯作者地址:[Niu, SL]Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China.
来源:ENERGY CONVERSION AND MANAGEMENT
出版年:2016
卷:114
页码:188-196
DOI:10.1016/j.enconman.2016.02.027
关键词:Biodiesel; Esterification; Heterogeneous acid catalyst; Partial; carbonization
摘要:Heterogeneous acid catalysts are derived from bamboo through the method of partial carbonization with sulfonation in succession and the catalytic activity is validated through the esterification of oleic acid with ethanol for biodiesel production. Meanwhile, catalysts are characterized by thermogravimetric (TG), nitrogen adsorption, energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and acid-base titration. Under the optimal conditions of carbonization at 350 degrees C with 2 h duration and sulfonation at 105 degrees C with 2 h duration, the bamboo derived catalyst possesses amorphous carbon structure with high sulfur content. It shows considerable heat stability below 220 degrees C and gains the total acid amount of 1.74 mmol g(-1). This catalyst could supply the esterification efficiency of 98.4% for acid value reduction with the molar ratio of ethanol to oleic acid of 7, heterogeneous acid addition of 6%, esterification temperature of 90 degrees C and esterification time of 2 h. In addition, the reused catalyst could be satisfyingly reactivated with the esterification activity of 93.66% under the same esterification condition. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:20
Scopus被引频次:25
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958985273&doi=10.1016%2fj.enconman.2016.02.027&partnerID=40&md5=b8010fba7cff612c1ca7d6f067e3c18d
TOP