title: Biodiesel production process from microalgae oil by waste heat recovery and process integration.
abstract: In this work, the optimization of microalgae oil (MO) based biodiesel production process is carried out by waste heat recovery and process integration. The exergy analysis of each heat exchanger presented an efficient heat coupling between hot and cold streams, thus minimizing the total exergy destruction. Simulation results showed that the unit production cost of optimized process is 0.592$/L biodiesel, and approximately 0.172$/L biodiesel can be avoided by heat integration. Although the capital cost of the optimized biodiesel production process increased 32.5% and 23.5% compared to the reference cases, the operational cost can be reduced by approximately 22.5% and 41.6%.
authors.affiliation: Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China. Electronic address: chunfeng.song@tju.edu.cn.
authors.forename: Chunfeng
authors.initials: C
authors.lastname: Song
authors.affiliation: Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China.
authors.forename: Guanyi
authors.initials: G
authors.lastname: Chen
authors.affiliation: Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China.
authors.forename: Na
authors.initials: N
authors.lastname: Ji
authors.affiliation: Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China.
authors.forename: Qingling
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Collaborative Research Center for Energy Engineering, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Kansha
authors.affiliation: Collaborative Research Center for Energy Engineering, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Tsutsumi
mesh_terms: D056804:Biofuels / Q000191:economics*; D019149:Bioreactors / Q000191:economics; D001709:Biotechnology / Q000191:economics / Q000379:methods; D003365:Costs and Cost Analysis / Q000191:economics; D006358:Hot Temperature; D058086:Microalgae / Q000737:chemistry*
chemical_list: D056804:Biofuels
keywords: Biodiesel; Heat recovery; Microalgae oil; Process integration; Vapor recompression