[HTML][HTML] A review of chemometrics models to predict crude oil properties from nuclear magnetic resonance and infrared spectroscopy

MK Moro, FD dos Santos, GS Folli, W Romão… - Fuel, 2021 - Elsevier
Quantitative prediction of crude oil properties (eg API gravity, kinematic viscosity, sulfur
content) can be conducted using multivariate calibration models. The growth and the …

Challenges in petroleum characterization—A review

I Shishkova, D Stratiev, IV Kolev, S Nenov… - Energies, 2022 - mdpi.com
252 literature sources and about 5000 crude oil assays were reviewed in this work. The
review has shown that the petroleum characterization can be classified in three categories …

Low-field NMR-relaxometry as fast and simple technique for in-situ determination of SARA-composition of crude oils

VY Volkov, AA Al-Muntaser, MA Varfolomeev… - Journal of Petroleum …, 2021 - Elsevier
In this study a new, fast and simple method based on low field NMR-relaxometry for in-situ
determination of SARA (saturates, aromatics, resins and asphaltenes) composition of crude …

Data fusion applied in near and mid infrared spectroscopy for crude oil classification

MK Moro, EVR de Castro, W Romão, PR Filgueiras - Fuel, 2023 - Elsevier
We report an application of a low-level data fusion for chemometric discrimination of crude
oil samples by usual classifications, based on the combination of data obtained by means of …

Application of new emerging techniques in combination with classical methods for the determination of the quality and authenticity of olive oil: A review

H Zaroual, C Chénè, EM El Hadrami… - Critical Reviews in Food …, 2022 - Taylor & Francis
The determination of the quality and authenticity of olive oil becomes more and more
required by producers, consumers, and authorities to thwarter falsification. Several analytical …

Quality classification of gasoline samples based on their aliphatic to aromatic ratio and analysis of PONA content using genetic algorithm based multivariate …

MK Khorrami, M Sadrara, M Mohammadi - Infrared Physics & Technology, 2022 - Elsevier
In this study, attenuated total reflectance fourier transform mid-infrared (ATR-FTIR) spectral
information was used to classify gasoline samples according to their aliphatic to aromatic …

Real-time reaction monitoring with in operando flow NMR and FTIR spectroscopy: Reaction mechanism of benzoxazole synthesis

Y Chae, S Min, E Park, C Lim, CH Cheon… - Analytical …, 2021 - ACS Publications
In operando observation of reaction intermediates is crucial for unraveling reaction
mechanisms. To address the sensitivity limitations of commercial ReactIR, a flow cell was …

Determination of gross calorific value in crude oil by variable selection methods applied to 13C NMR spectroscopy

EH de Paulo, FD dos Santos, GS Folli, LP Santos… - Fuel, 2022 - Elsevier
Abstract Gross Calorific Value (GCV) is one of the properties to assess the quality and value
of fuel in the oil industry, but the standard method is laborious. Regression models built with …

[HTML][HTML] Predicting crude oil properties using fourier-transform infrared spectroscopy (FTIR) and data-driven methods

SB Yang, J Moreira, Z Li - Digital Chemical Engineering, 2022 - Elsevier
Two data-driven approaches based on the Fourier-transform infrared spectroscopy (FTIR)
data are presented in this work to predict crude oil properties. The first approach is the …

Variable selection in support vector regression using angular search algorithm and variance inflation factor

GS Folli, MHC Nascimento, EH de Paulo… - Journal of …, 2020 - Wiley Online Library
Here, we combine angular search algorithm and variance inflation factor (ASA‐VIF) with
support vector regression (SVR)(ASA‐VIF‐SVR) to estimate total acid number (TAN), basic …