DETERMINATION OF PALM METHYL BIODIESEL IN DIESEL BLENDS USING MULTIVARIATE CURVE RESOLUTION WITH ALTERNATING LEAST SQUARES

被引:1
作者
Teles, Edvando S. [1 ]
da Costa, Lucas G. [1 ]
Borges Neto, Waldomiro [1 ]
Soares, Ricardo R. [2 ]
机构
[1] Univ Fed Uberlandia, Inst Quim, BR-38408100 Uberlandia, MG, Brazil
[2] Univ Fed Uberlandia, Fac Engn Quim, BR-38408100 Uberlandia, MG, Brazil
来源
QUIMICA NOVA | 2025年 / 48卷 / 04期
关键词
biofuel; chemometrics; MCR regression; quality control;
D O I
10.21577/0100-4042.20250057
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The increase in the average temperature of the Earth due to excess CO2 and other greenhouse gases has caused glaciers to melt and sea levels to rise. The burning of fossil fuels is one of the main causes of this problem, so the use of biofuels is important for mitigating this environmental impact. In Brazil, biodiesel is mixed with mineral; however, irregularities have been detected, reducing the expected positive effects. Therefore, this study proposes the use of multivariate curve resolution with alternating least squares (MCR-ALS) to quantify the content of methyl palm oil biodiesel in diesel blends and determine the concentration of the adulterant automotive lubricating oil in the blend. The model for quantifying biodiesel in diesel obtained R-2 = 0.9997, root mean square error of calibration (RMSEC) = 0.56% (v v(-1)) and prediction (RMSEP) = 0.65% (v v(-1)), while the determination of adulteration in the biodiesel-diesel blend showed RMSEC = 0.67% (v v(-1)), RMSEP = 0.81% (v v(-1)) and R-2 = 0.9992. These results demonstrate the ability of the models developed to predict both the content and quantity of possible adulterants in blends of palm oil biodiesel and mineral diesel, contributing to the quality control of this fuel.
引用
收藏
页数:6
相关论文
共 31 条
  • [1] Agencia Nacional do Petroleo Gas natural e Biocombustivel (ANP), 2025, Programa de Monitoramento de Qualidade dos Combustiveis (Caracteristicas Fisico-Quimica)
  • [2] Aguiar L. M., 2022, Talanta, V236
  • [3] [Anonymous], 2015, Matlab®, versao 2015
  • [4] [Anonymous], 2008, ABNT NBR 15568: Biodiesel-Determinacao do Teor de Biodiesel em Oleo Diesel por Espectroscopia na Regiao do Infravermelho Medio
  • [5] [Anonymous], 2012, ASTM E1655-05
  • [6] Quality Control Parameters in the Roasted Coffee Industry: a Proposal by Using MicroNIR Spectroscopy and Multivariate Calibration
    Baqueta, Michel Rocha
    Coqueiro, Aline
    Marco, Paulo Henrique
    Valderrama, Patricia
    [J]. FOOD ANALYTICAL METHODS, 2020, 13 (01) : 50 - 60
  • [7] Barbosa L. C. A., 2008, Espectroscopia no Infravermelho na Caracterizacao de Compostos Organicos
  • [8] Bro R, 1997, J CHEMOMETR, V11, P393, DOI 10.1002/(SICI)1099-128X(199709/10)11:5<393::AID-CEM483>3.0.CO
  • [9] 2-L
  • [10] Multivariate assessment for predicting antioxidant activity from clove and pomegranate extracts by MCR-ALS and PLS models combined to IR spectroscopy
    Camara, Anne B. F.
    De Oliveira, Keverson G.
    Santos, Marfran C. D.
    De Lima, Ramoni R. S.
    De lima, Kassio M. G.
    De Carvalho, Luciene S.
    [J]. FOOD CHEMISTRY, 2022, 384