continuous process for biodiesel production in packed bed reactor from waste frying oil using potassium hydroxide supported on jatropha curcas fruit shell as solid catalyst在填充床反应器连续过程的生物柴油生产从废煎炸油使用氢氧化钾支持麻风树果壳作为固体催化剂.pdfVIP

Appl. Sci. 2012, 2, 641-653; doi:10.3390/app2030641 OPEN ACCESS applied sciences ISSN 2076-3417 /journal/applsci Article Continuous Process for Biodiesel Production in Packed Bed Reactor from Waste Frying Oil Using Potassium Hydroxide Supported on Jatropha curcas Fruit Shell as Solid Catalyst Achanai Buasri 1,2,*, Nattawut Chaiyut 1,2, Vorrada Loryuenyong 1,2, Chao Rodklum 1, 1 1 Techit Chaikwan and Nanthakrit Kumphan 1 Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand; E-Mails: nchaiyut@ (N.C.); vorrada@ (V.L.); uppermost_dog@ (C.R.); CkTechit@ (T.C.); nankung_18@ (N.K.) 2 National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University, Bangkok 10330, Thailand * Author to whom correspondence should be addressed; E-Mails: achanai130@ or achanai@su.ac.th; Tel./Fax: +66-34-219-363. Received: 31 July 2012; in revised form: 24 August 2012 / Accepted: 24 August 2012 / Published: 29 August 2012 Abstract: The transesterification of waste frying oil (WFO) with methanol in the presence of potassium hydroxide catalyst supported on Jatropha curcas fruit shell activated carbon (KOH/JS) was studied. The catalyst systems were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and the Brunauer–Emmett–Teller (BET) method. The effects of reaction variables such as