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Optimization a Gasoil Vacuum Dryer Using Response Surface Methodology
Author(s) -
Narimani Elhameh,
Alaei Kadijani Javad
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300123
Subject(s) - response surface methodology , dehydration , residence time (fluid dynamics) , central composite design , fuel oil , quadratic model , design–expert , chemistry , chromatography , engineering , waste management , biochemistry , geotechnical engineering
Abstract A laboratory‐scale vacuum dryer with gasoil as feed was investigated based on response surface methodology (RSM). Dehydration efficiency and gasoil loss in this type of vacuum dryer are significantly affected by residence time, temperature, and pressure as independent variables, therefore, central composite face‐centered design of RSM with three levels of these variables was applied to design the experiments. Experimental data of dehydration efficiency and gasoil loss fitted well to the second‐order quadratic polynomials using a statistical software program and predictive models of dehydration efficiency and gasoil loss were obtained. An increase in temperature and residence time and a decrease in pressure could improve dehydration efficiency and gasoil loss. The estimated model of gasoil loss was minimized to reach a particular amount of dehydration efficiency.