Chevron U.s.a. Inc.

Eddy Lee

Toni Zhang Miao

Hye-Kyung Cho Timken

Huping Luo

Bong-Kyu Chang

Michael Moir

Estrella Rogel

Ajit Ramachandra Pradhan

Ian Phillip Benson

Kyle Matthew Hench

The present disclosure advantageously refers to systems and methods for predicting an oil mixture's blend compatibility without mixing the components and/or without performing direct blend testing. The techniques described use a correlation between near infrared spectroscopic information, asphaltene solubility parameter Ra, and maltene solubility parameter Po to accurately predict blend compatibility using the equation P=Po(blend)/Ra(blend). A P≥1 indicates the blend is compatible. These techniques are useful in, for example, refineries to predict and therefore reduce or eliminate fouling due to asphaltene deposits.

Systems and processes for predicting asphaltene blend compatibility

A method is provided for predicting conjunct polymer concentration in spent ionic liquid during a continuous hydrocarbon conversion process.

Method for on-line prediction of conjunct polymer concentration in a hydrocarbon conversion process

A method of estimating the relative concentration of at least two components contained in a mixture of the components is disclosed. At least two mixtures are produced by combining the at least two components, each of the at least two mixtures having different concentrations of the at least two components. NIR mixture spectra are acquired from each of the at least two mixtures. The NIR component spectra and the NIR mixture spectra are input into a computer utilizing chemometrics software and the spectra are analyzed to produce a calibration model for each component and each of the mixture NIR spectra. NIR monitored spectra for a monitored mixture of the components having an unknown concentration of the components is acquired. The calibration models are applied to the NIR monitored spectra to thereby estimate the concentration of at least one of the components in the monitored mixture.

Method and system for NIR spectroscopy of mixtures to evaluate composition of components of the mixtures

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Hercules, CA, United States of America

Eddy Lee