The problems in design and detailed analyses of energy consumption for biodiesel synthesis at supercritical conditions

被引:86
作者
Glisic, Sandra [1 ,2 ]
Skala, Dejan [1 ,2 ]
机构
[1] Univ Belgrade, Fac Technol & Met, Dept Organ Chem Technol, Belgrade 11120, Serbia
[2] Texas A&M Univ Qatar, Education City, Doha, Qatar
关键词
Alcoholysis; FAME; Biodiesel; Supercritical alcoholysis (SCA); Homogenous alkali-catalyzed alcoholysis (HACA); Sensitive analyses; WASTE COOKING OIL; RAPESEED OIL; VEGETABLE-OILS; FUEL PRODUCTION; METHYL-ESTERS; PROCESS MODEL; FATTY-ACIDS; TRANSESTERIFICATION; KINETICS; TRIGLYCERIDES;
D O I
10.1016/j.supflu.2008.12.011
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The main goal of this study is analysis the existing and recently published data related to design of larger scale plant for biodiesel synthesis at supercritical conditions. Such analysis was focused on the problem of insufficiency of the previously in the literature published industrial plant design simulation. A continuous process flowsheet for biodiesel production from triglycerides under supercritical conditions of alcohol (SCA) was analyzed and influence of triglycerides degree of conversion on overall energy consumption in SCA was examined. A comparison between the homogenous alkali-catalyzed alcoholysis (HACA) and the supercritical methanolysis of triglyceride was made in order to point out the advantages and disadvantages of each of analyzed process. Furthermore, the usage of energy in each step and environmentally weak points of both process are discussed and the possible solutions for avoiding them are proposed. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:293 / 301
页数:9
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