Simultaneous determination of hydrocarbon renewable diesel, biodiesel and petroleum diesel contents in diesel fuel blends using near infrared (NIR) spectroscopy and chemometrics

The Analyst ◽  
2013 ◽  
Vol 138 (21) ◽  
pp. 6477 ◽  
Author(s):  
Julio Cesar Laurentino Alves ◽  
Ronei Jesus Poppi
Keyword(s):  
Simultaneous Determination ◽  
Diesel Fuel ◽  
Near Infrared ◽  
Nir Spectroscopy ◽  
Renewable Diesel ◽  
Fuel Blends

scholarly journals Calibration Method for the Determination of the FAME and HVO Contents in Fossil Diesel Blends Using NIR Spectroscopy

Fuels ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 179-193
Author(s):  
Elena Wikberg ◽  
Sonja Heikkilä ◽  
Katriina Sirviö ◽  
Petri Välisuo ◽  
Seppo Niemi ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Near Infrared ◽  
Nir Spectroscopy ◽  
Calibration Method ◽  
Regression Method ◽  
Renewable Diesel ◽  
Fuel Blend ◽  
Fuel Blends ◽  
Calibration Models

The European diesel fuel standard, EN590, allows a 7% (V/V) biodiesel (FAME) addition to automotive diesel fuel. The allowed addition of renewable diesel (HVO) to fossil diesel is not defined, as long as the properties of the fuel blend still meet the requirements of the standard. However, it is important to analyze the biofuels’ content in diesel fuel blends. In this article, a development procedure of a calibration method for quantification of the HVO and FAME contents in fossil diesel blends using near-infrared (NIR) spectroscopy is presented. The analytical range of quantification of biodiesel content is from 0 to 10% (V/V) and of renewable diesel content from 0 to 20% (V/V). The partial least squares (PLS) regression method for multivariable data analysis and construction of the calibration models were used to create the calibration method. The constructed PLS models obtained prediction results for all diesel fuel blends with root mean square error of prediction (RMSEP) values of 2.66% (V/V) for the HVO content quantification and 0.18% (V/V) for quantification of the FAME content. This article concludes that the calibration method is acceptable for laboratory applications in practice.

Simultaneous Determination of Physical and Chemical Properties of Sodium Chloride Solutions by near Infrared Spectroscopy

1993 ◽  
Vol 1 (2) ◽  
pp. 109-120 ◽  
Author(s):  
Jie Lin ◽  
Chris W. Brown
Keyword(s):  
Simultaneous Determination ◽  
Near Infrared ◽  
Chemical Properties ◽  
Nir Spectroscopy ◽  
Physical And Chemical Properties ◽  
Fibre Optic Probe ◽  
Optic Probe ◽  
Physical And Chemical ◽  
And Chemical Properties

Near infrared (NIR) spectroscopy has been investigated as a new technique for the simultaneous determination of physical and chemical properties of NaCl solutions. The spectra of NaCl solutions (0 to 5 M) were measured with cuvettes in the 1100–2500 nm and 680–1230 nm regions at temperatures between 23.0 and 28.5°C, and with a fibre-optic probe in the 1100–1870 nm region at room temperature (23.0 ± 0.5°C). These spectra were correlated with various properties of NaCl solutions by principal component regression (PCR) and multilinear regression (MLR) models. The properties studied include water concentration, density, refractive index, relative viscosity, freezing point depression, osmolality, electrical conductance and activity coefficient of NaCl. Very good correlations were found between the NIR predicted values and literature values. The results of this study demonstrate that several properties of NaCl solutions can be determined simultaneously with NIR spectroscopy. Remote sensing of the properties can be performed with the use of a fibre-optic probe.

Determination of total sulfur in diesel fuel employing NIR spectroscopy and multivariate calibration

The Analyst ◽  
2003 ◽  
Vol 128 (9) ◽  
pp. 1204-1207 ◽  
Author(s):  
Márcia C. Breitkreitz ◽  
Ivo M. Raimundo, Jr ◽  
Jarbas J. R. Rohwedder ◽  
Celio Pasquini ◽  
Heronides A. Dantas Filho ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Multivariate Calibration ◽  
Nir Spectroscopy ◽  
Total Sulfur

scholarly journals Determination of the composition of multilayer plastic packaging with NIR spectroscopy

Detritus ◽  
2020 ◽  
pp. 62-66
Author(s):  
Xiaozheng Chen ◽  
Nils Kroell ◽  
Alexander Feil ◽  
Thomas Pretz
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared ◽  
State Of The Art ◽  
Nir Spectroscopy ◽  
Waste Recycling ◽  
Point Of View ◽  
Plastic Packaging ◽  
Post Industrial ◽  
Detection And Separation

In food and medical packaging, multiple layers of different polymers are combined in order to achieve optimal functional properties for various applications. Flexible multilayer plastic packaging achieves a reduction in weight compared to other packaging products with the same function, saving material and in transportation costs. Recycling of post-industrial multilayer packaging was achieved by some companies, but the available technologies are limited to specific polymer types. For post-consumer waste, recycling of multilayer packaging has not been achieved yet. One of the main challenges in plastic sorting is that the detection and separation of multilayer packaging from other materials is not possible yet. In this study, the possibility to detect and sort flexible multilayer plastic packaging was investigated with near-infrared spectroscopy, which is the state-of-the-art technology for plastic sorting. The results show that from a detection and classification point of view, sorting of monolayer, two- and three-layers samples under laboratory conditions is possible. According to the captured data, the sequence of layers has little influence on the spectra. In case of glossy samples, the spectra are influenced by printed surfaces. With an increase in thickness, the spectra get more characteristic, which makes the classification easier. Our results indicate that the sorting of post-consumer multilayer plastic packaging by main composition is theoretically achievable.

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