Enhancement of biodiesel production via sequential esterification/transesterification over solid superacidic and superbasic catalysts
學年 108
學期 2
出版（發表）日期 2020-05-15
作品名稱 Enhancement of biodiesel production via sequential esterification/transesterification over solid superacidic and superbasic catalysts
作品名稱（其他語言）
著者 Chao-Lung Chiang; Kuen-Song Lin; Chia-Wei Shu; Jeffrey Chi-Sheng Wu; Kevin Chia-Wen Wu; Yu-Tzu Huang
單位
出版者
著錄名稱、卷期、頁數 Catalysis Today 348, 257-269
摘要 Recently, biodiesel can be produced from energy crops and has been recognized as an ideal candidate for satisfying the global energy demand. Owing to its fossil-fuel-similar physicochemical properties, biodiesel is also regarded as an alternative fuel for various applications. In present work, soybean oil with added fatty free acid (FFA; palmitic acid, 5.0 wt%) was converted to biodiesel via a two-step process in a catalytic fixed-bed batch reactor with SO42–/ZrO2/Al2O3, KF/CaO–Fe3O4, and Na/NaOH/Al2O3 catalysts. A solid superacidic (SO42–/ZrO2/Al2O3: 0.1–1.5 M H2SO4) and two solid superbasic (KF/CaO–Fe3O4, 5–25 wt% KF; Na/NaOH/Al2O3, 10–25 wt% NaOH) catalysts were fabricated using calcination at 300–700 °C and 200–700 °C, respectively. Notably, the FFA removal efficiency of SO42–/ZrO2/Al2O3 (80.0%) was much higher than that of commercial Amberlyst IR 120 (30.0%) in a 3-h reaction. Optimal biodiesel yields were obtained using KF/CaO–Fe3O4 (83.0%) and Na/NaOH/Al2O3 (100.0%). Catalytic reaction mechanisms of the conversion of soybean oil with FFA into biodiesel using solid superacidic and superbasic catalysts were also proposed. The FFA and soybean oil were converted to biodiesel over the superacidic and superbasic catalysts, respectively.
關鍵字 Biodiesel Producion, Superacidic/Superbasic Catalysts, Esterification/Transesterification, XANES/EXAFS
語言 en
ISSN
期刊性質 國外
收錄於 SCI Scopus
產學合作 國內
通訊作者 Kuen-Song Lin
審稿制度 是
國別 NLD
公開徵稿
出版型式 ,電子版
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