In this work, methods for in-line monitoring of the transesterification reactions of soybean oil with methanol using NIR spectroscopy are developed. Gas chromatography was employed for determining the contents of methyl ester (ME), monoglycerides (MG), diglycerides (DG) and triglycerides (DG) during the transesterification reaction and used as reference to build partial least squares regression (PLS) and multiple linear regression (MLR) calibration models employing NIR spectra. Some pre-processing and variable selection strategies of the spectral data were evaluated. Satisfactory RMSEP values were obtained for the external prediction subset. In addition, a multivariate control chart based on latent variables to monitor the progress of the reactions is also presented. (C) 2013 Elsevier Ltd. All rights reserved.
机构:
Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Univ Khartoum, Dept Mech Engn, Khartoum, SudanUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Atabani, A. E.
;
Silitonga, A. S.
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Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Medan State Polytech, Dept Mech Engn, Medan, IndonesiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Silitonga, A. S.
;
Badruddin, Irfan Anjum
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Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Badruddin, Irfan Anjum
;
Mahlia, T. M. I.
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Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Mahlia, T. M. I.
;
Masjuki, H. H.
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Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Masjuki, H. H.
;
Mekhilef, S.
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Univ Malaya, Dept Elect Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
机构:
Pontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, BrazilPontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, Brazil
Brandini De Boni, Luis Alcides
;
Lima da Silva, Isaac Newton
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Pontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, BrazilPontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, Brazil
机构:
Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Univ Khartoum, Dept Mech Engn, Khartoum, SudanUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Atabani, A. E.
;
Silitonga, A. S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Medan State Polytech, Dept Mech Engn, Medan, IndonesiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Silitonga, A. S.
;
Badruddin, Irfan Anjum
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h-index: 0
机构:
Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Badruddin, Irfan Anjum
;
Mahlia, T. M. I.
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h-index: 0
机构:
Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Mahlia, T. M. I.
;
Masjuki, H. H.
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h-index: 0
机构:
Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
Masjuki, H. H.
;
Mekhilef, S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Malaya, Dept Elect Engn, Kuala Lumpur 50603, MalaysiaUniv Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia
机构:
Pontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, BrazilPontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, Brazil
Brandini De Boni, Luis Alcides
;
Lima da Silva, Isaac Newton
论文数: 0引用数: 0
h-index: 0
机构:
Pontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, BrazilPontificia Univ Catolica Rio Grande do Sul, BR-90619900 Porto Alegre, RS, Brazil