title: Biodiesel production in packed-bed reactors using lipase-nanoparticle biocomposite.
abstract: The development of appropriate reactors is crucial for the production of biodiesel. In this study, a packed-bed reactor system using lipase-Fe(3)O(4) nanoparticle biocomposite catalyst was successfully developed for biodiesel production based on soybean oil methanolysis. Emulsification before methanolysis improved the reaction rate. The lipase-nanoparticle biocomposite showed high activity and stability in the single-packed-bed reactor at an optimal flow rate (0.25 mL min(-1)). After 240 h of reaction, the conversion rate was sustained as high as 45%. The conversion rate and stability achieved using the four-packed-bed reactor were much higher than those achieved using the single-packed-bed reactor. The conversion of biodiesel was maintained at a high rate of over 88% for 192 h, and it only slightly declined to approximately 75% after 240 h of reaction. The packed-bed reactor system, therefore, has a great potential for achieving the design and operation of enzymatic biodiesel production on the industrial scale.
authors: State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China.
authors: Xia
authors: X
authors: Wang
authors: Xueying
authors: X
authors: Liu
authors: Chuanming
authors: C
authors: Zhao
authors: Yi
authors: Y
authors: Ding
authors: Ping
authors: P
authors: Xu
mesh_terms: D056804:Biofuels; D019149:Bioreactors; D016956:Burkholderia cepacia / Q000201:enzymology; D002849:Chromatography, Gas; D004951:Esterification; D008049:Lipase / Q000378:metabolism; D053758:Nanoparticles
chemical_list: D056804:Biofuels; D008049:Lipase