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Experimental and Modeling Study of Continuous Catalytic Transesterification to Biodiesel in a Bench-Scale Fixed-Bed Reactor
Industrial & Engineering Chemistry Research (2012)
  • Yang Xiao, Purdue University
  • Guomin Xiao, Southeast University, China
Abstract
A 500 h endurance test of continuous catalytic transesterification to biodiesel was conducted in a bench-scale fixed-bed reactor. A designed cylinder shape of KF/Ca–Mg–Al hydrotalcite catalyst was stable through the test with high catalytic activity and mechanical strength, converting palm oil to biodiesel with a conversion of more than 95%. Conditions effects on transesterification under relative high pressure (1.0 MPa) were investigated and a one-dimensional heterogeneous model of a fixed-bed reactor was developed to describe the reaction-mass transfer behaviors of continuous catalytic transesterification in a bench-scale fixed-bed reactor. With the given reactor size, optimum conditions were proposed as a LHSV (liquid hourly space velocity) of 0.76–0.25 h–1, molar ratio of methanol-to-oil of 9.16–13.7, and temperature of 338–347 K.
Keywords
  • Biodiesel,
  • Bench reactor,
  • Kinetic modeling
Publication Date
Spring March 5, 2012
DOI
10.1021/ie202312z
Citation Information
Yang Xiao and Guomin Xiao. "Experimental and Modeling Study of Continuous Catalytic Transesterification to Biodiesel in a Bench-Scale Fixed-Bed Reactor" Industrial & Engineering Chemistry Research Vol. 51 Iss. 37 (2012) p. 11860 - 11865 ISSN: 0888-5885
Available at: http://works.bepress.com/yang-xiao/8/