title: Process enhancement of supercritical methanol biodiesel production by packing beds.
abstract: Continuous fixed bed reactors filled by three kinds of packing which were glass bead, glass spring and Dixon rings were investigated. The effect of temperature, pressure, the molar ratio of methanol to oil, flow rate, the size and shape of the packing were researched. The highest yield 90.84% of FAME was obtained by filling Dixon rings as packing with the condition of the temperature was 350°C, the pressure was 22MPa, the molar ratio of methanol to oil was 42:1. In addition, the reusability of Dixon rings was perfect. Numerical simulation was researched to provide theoretical basis for experimental results, besides the kinetics and thermodynamics behavior were investigated to explore the reaction mechanism.
authors.affiliation: State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China.
authors.forename: Bao-Quan
authors.initials: BQ
authors.lastname: Qiao
authors.affiliation: State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China.
authors.forename: Gen
authors.initials: G
authors.lastname: Li
authors.affiliation: State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China. Electronic address: jzyin@dlut.edu.cn.
authors.forename: Jian-Zhong
authors.initials: JZ
authors.lastname: Yin
authors.affiliation: Marine Bioengineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
authors.forename: Song
authors.initials: S
authors.lastname: Xue
authors.affiliation: Marine Bioengineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
authors.forename: Jiao
authors.initials: J
authors.lastname: Liu
mesh_terms: D056804:Biofuels; D019149:Bioreactors; D001709:Biotechnology / Q000379:methods*; D003198:Computer Simulation; D004951:Esterification; D004952:Esters / Q000032:analysis; D007700:Kinetics; D000432:Methanol / Q000737:chemistry*; D011312:Pressure; D012212:Rheology; D013024:Soybean Oil / Q000737:chemistry; D013696:Temperature
chemical_list: D056804:Biofuels; D004952:Esters; D013024:Soybean Oil; D000432:Methanol
keywords: Biodiesel; Fixed bed reactor; Kinetics; Packing; Supercritical