Preparation of a novel cellulose-based immobilized heteropoly acid system and its application on the biodiesel production

• Published in: Fuel (Guildford) Vol. 172; pp. 293 - 300
• Main Authors: Zhang, Dong-Yang, Duan, Ming-Hui, Yao, Xiao-Hui, Fu, Yu-Jie, Zu, Yuan-Gang
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.05.2016
• Subjects: Biodiesel; Cellulose beads; Heteropoly acid; Immobilization; Yellow horn seed oil; Yellow horn seed oil; Immobilization; Cellulose beads; Heteropoly acid; Biodiesel
• ISSN: 0016-2361; 1873-7153
• DOI: 10.1016/j.fuel.2015.12.020

[Display omitted] •Cellulose beads were prepared using environmental friendly ILs.•HPWs were first immobilized on the cellulose beads with high immobilized amount.•The cellulose-based immobilized heteropoly acid can be successfully used on the biodiesel production.•The cellulose-based immobilized heteropoly acid can be reused more than 7 times. Porous cellulose beads (CBs) were prepared using ionic liquid as solvent and then further modified using different reagents which were ethylenediamine (EDA), diethylenetriamine (DETA), triethylene tetramine (TETA) and 4-aminostyrene (AST). These CBs were used as carrier for immobilization of H3PW12O40 (HPW). The immobilized catalysts were characterized by FT-IR, scanning electron microscopy, XRD, ICP atomic emission spectrophotometer. The results indicated that CB-(AST-HPW)n possessed higher amounts of HPW and stronger catalytic activity for biodiesel production. After using CB-(AST-HPW)n for yellow horn oil esterification, the conversion yield reached 96.22% under optimal conditions. The final product of biodiesel prepared with CB-(AST-HPW)n was of high quality. We conclude that cellulose-based immobilized HPW is a novel catalyst potentially suited for biodiesel production.