naa a22 4500 510819605 CHVBK 20180411083524.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11814-013-0043-6 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0043-6 Production of biodiesel from soybean oil catalyzed by attapulgite loaded with C4H5O6KNa catalyst [Elektronische Daten] [Bin Ye, Yihuai Li, Fengxian Qiu, Chuanjia Sun, Zhenyu Zhao, Teng Ma, Dongya Yang] Biodiesel is a green, safe, renewable alternative fuel, which is of great significance to solving the problem of energy shortage and environmental pollution. A series of solid base catalysts were prepared with the support of attapulgite (ATP), the load of C4H5O6KNa by impregnation method, and were used to catalyze transesterification of soybean oil with methanol to biodiesel. The activities of prepared catalysts were investigated compared to pure ATP. The optimal conditions for the catalyst preparation were investigated: molar ratio of Na: ATP was 1.7: 1 and calcination temperature was 400 °C. The prepared catalysts were characterized by several techniques such as Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, N2 adsorption-desorption measurements, X-ray diffraction and the Hammett indicator method. The prepared solid base catalyst can be separated from reaction system effectively and easily. The effects of the molar ratio of methanol to oil, reaction temperature and amount of catalyst on the biodiesel yield were investigated. The experimental results showed that a 22: 1 molar ratio of methanol to oil, 10.0% of catalyst amount, 65 °C of reaction temperature and 3.0 h of reaction time gave the best results. The catalyst has longer lifetime and maintained sustained activity after being used for five cycles. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Transesterification nationallicence Biodiesel nationallicence Attapulgite nationallicence Solid Base Catalyst nationallicence Ye Bin School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut Li Yihuai School of Urban Development and Environment Engineering, Shanghai Second Polytechnic University, 201209, Shanghai, P. R. China aut Qiu Fengxian School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut Sun Chuanjia School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut Zhao Zhenyu School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut Ma Teng School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut Yang Dongya School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/7(2013-07-01), 1395-1402 0256-1115 30:7<1395 2013 30 11814 https://doi.org/10.1007/s11814-013-0043-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0043-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ye Bin School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut NATIONALLICENCE 700 1- Li Yihuai School of Urban Development and Environment Engineering, Shanghai Second Polytechnic University, 201209, Shanghai, P. R. China aut NATIONALLICENCE 700 1- Qiu Fengxian School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut NATIONALLICENCE 700 1- Sun Chuanjia School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut NATIONALLICENCE 700 1- Zhao Zhenyu School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut NATIONALLICENCE 700 1- Ma Teng School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut NATIONALLICENCE 700 1- Yang Dongya School of Chemistry and Chemical Engineering, Jiangsu University, 212013, Zhenjiang, P. R. China aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/7(2013-07-01), 1395-1402 0256-1115 30:7<1395 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer