TY - JOUR
T1 - Continuous production of biodiesel from waste cooking oil in a reactive distillation column catalyzed by solid heteropolyacid
T2 - Optimization using response surface methodology (RSM)
AU - Noshadi, I.
AU - Amin, N. A.S.
AU - Parnas, Richard S.
N1 - Funding Information:
The authors would like to express their sincere gratitude to the Ministry of Higher Education (MOHE), Malaysia for supporting the project under Fundamental Research Grant Scheme (FRGS) Vote 78402. RSP was supported by US DOE Grant DEEE0003116 and by the Connecticut Department of Economic and Community Development.
PY - 2012/4
Y1 - 2012/4
N2 - This study aims to develop an optimal continuous process to produce fatty acid methyl esters (biodiesel) from waste cooking oil in a reactive distillation column catalyzed by a heteropolyacid, H 3PW 12O 40·6H 2O. The conventional production of biodiesel in the batch reactor has some disadvantage such as excessive alcohol demand, short catalyst life and high production cost. Reactive distillation combines reaction and separation to simplify the process operation. The reaction catalyzed by H 3PW 12O 40·6H 2O overcomes the neutralization problem that occurs in conventional transesterification of waste cooking oil with high free fatty acid (FFAs) and water content. Response surface methodology (RSM) based on central composite design (CCD) was used to design the experiment and analyzed four operating parameters: total feed flow, feed temperature, reboiler duty and methanol/oil ratio. The optimum conditions were determined to be 116.23 (mol/h) total feed flow, 29.9°C feed temperature, 1.3 kW reboiler duty, and 67.9 methanol/oil ratio. The optimum and actual free fatty acid methyl ester (FAME) yield was 93.98% and 93.94%, respectively, which demonstrates that RSM is an accurate method for the current procedure.
AB - This study aims to develop an optimal continuous process to produce fatty acid methyl esters (biodiesel) from waste cooking oil in a reactive distillation column catalyzed by a heteropolyacid, H 3PW 12O 40·6H 2O. The conventional production of biodiesel in the batch reactor has some disadvantage such as excessive alcohol demand, short catalyst life and high production cost. Reactive distillation combines reaction and separation to simplify the process operation. The reaction catalyzed by H 3PW 12O 40·6H 2O overcomes the neutralization problem that occurs in conventional transesterification of waste cooking oil with high free fatty acid (FFAs) and water content. Response surface methodology (RSM) based on central composite design (CCD) was used to design the experiment and analyzed four operating parameters: total feed flow, feed temperature, reboiler duty and methanol/oil ratio. The optimum conditions were determined to be 116.23 (mol/h) total feed flow, 29.9°C feed temperature, 1.3 kW reboiler duty, and 67.9 methanol/oil ratio. The optimum and actual free fatty acid methyl ester (FAME) yield was 93.98% and 93.94%, respectively, which demonstrates that RSM is an accurate method for the current procedure.
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U2 - 10.1016/j.fuel.2011.10.018
DO - 10.1016/j.fuel.2011.10.018
M3 - Article
AN - SCOPUS:84856700202
SN - 0016-2361
VL - 94
SP - 156
EP - 164
JO - Fuel
JF - Fuel
ER -