Synthesis of biodiesel using waste material as catalyst

• Main Authors: Chin-En Chen, 陳志恩
• Other Authors: Yuan-Chung Lin
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/66709199140229466161

碩士 === 國立中山大學 === 環境工程研究所 === 101 === This study used waste cooking oil and jatropha oil as the raw materials for investigating effects of catalyst concentration, reaction time, reaction temperature, methanol-to-oil ratio, and catalyst types on biodiesel yield. The study speed up the transesterification and make the short reaction time under microwave conditions. This study investigated crushing the dried from eggshell and oystershell of wastes, calcination was performed in the muffle furnace at temperatures 1000 °C for 2 h. The textural structure of calcined eggshell and oystershell can be observed from the X-ray Diffractometer (XRD), Fourier Transform Infrared Spectrometry (FTIR) and Environment Scanning Electron Micrograph (ESEM) images. The experimental results revealed that using calcined eggshell as catalyst, and jatropha oil used as the raw material, the best operational condition (yield 91.7%) addition of 5 wt% eggshell catalysts (calcined at 1000 °C), the reaction time was 165 min, reaction temperature was 65 ℃, and the methanol-to-oil ratio was 9:1. Comparing the eggshell as catalyst, operational condition addition of 6 wt% oystershell catalysts, the reaction time was 180 min, reaction temperature was 65 ℃, and the methanol-to-oil ratio was 9:1. The results indicated that the catalysts derived from eggshells showed yield better than oystershell for biodiesel production. Comparison of waste cooking oil and jatropha oil as the raw materials, the operational condition addition of 5 wt% eggshell catalysts, the reaction time was 165 min, reaction temperature was 65 ℃, and the methanol-to-oil ratio was 9:1, the yield 87.8% and 91.7%, respectively. This data indicates that jatropha oil is better than waste cooking oil for biodiesel production.