title: Biodiesel production from waste chicken fat with low free fatty acids by an integrated catalytic process of composite membrane and sodium methoxide.
abstract: An integrated process of catalytic composite membranes (CCMs) and sodium methoxide was developed to produce biodiesel from waste chicken fat. The free fatty acids (FFAs) in the chicken oil were converted to methyl esters by esterification with methanol using a novel sulfonated polyethersulfone (SPES)/PES/non-woven fabric (NWF) CCMs in a flow-through catalytic membrane reactor. The CCM is that the NWF fibers were fully embedded in SPES/PES with a homogeneous and microporous structure. The oil obtained after esterification was carried out by transesterification of sodium methoxide. The results showed that the FFAs conversion obtained by CCMs with the acid capacity of 25.28 mmol (H(+)) was 92.8% at the residence time 258s. The CCMs present a good stability during the continuous running of 500 h. The conversion of transesterification was 98.1% under the optimum conditions. The quality of the biodiesel met the international standards.
authors.affiliation: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors.forename: Wenying
authors.initials: W
authors.lastname: Shi
authors.forename: Jianxin
authors.initials: J
authors.lastname: Li
authors.forename: Benqiao
authors.initials: B
authors.lastname: He
authors.forename: Feng
authors.initials: F
authors.lastname: Yan
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Cui
authors.forename: Kaiwei
authors.initials: K
authors.lastname: Wu
authors.forename: Ligang
authors.initials: L
authors.lastname: Lin
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Qian
authors.forename: Yu
authors.initials: Y
authors.lastname: Cheng
mesh_terms: D000818:Animals; D056804:Biofuels; D001709:Biotechnology / Q000379:methods*; D002384:Catalysis; D002645:Chickens; D002849:Chromatography, Gas; D057168:Distillation; D004951:Esterification; D005223:Fats / Q000737:chemistry*; D005230:Fatty Acids, Nonesterified / Q000032:analysis*; D008567:Membranes, Artificial; D000432:Methanol / Q000737:chemistry*; D009821:Oils / Q000737:chemistry; D011312:Pressure; D013696:Temperature; D013997:Time Factors; D014866:Waste Products / Q000032:analysis*
chemical_list: D056804:Biofuels; D005223:Fats; D005230:Fatty Acids, Nonesterified; D008567:Membranes, Artificial; D009821:Oils; D014866:Waste Products; D000432:Methanol