Method for rapidly detecting refined oil quality

Abstract

The invention discloses a method for rapidly detecting refined oil quality and mainly relates to the detection technology field. The method is characterized by setting an absorption spectrum of a near-infrared spectrograph and putting the near-infrared spectrograph into a sample cell; using air as a reference, collecting background spectrums, using a glass dropper to absorb a sample and placing inthe sample cell, and measuring the spectrum of the sample; using a PLS method to establish a calibration model of a relation between various quality indexes and spectral data; using the spectral dataof the sample and the established calibration model, measuring a Mahalanobis distance and the various quality indexes of the sample and a calibration set sample, and reporting a measurement result; and comparing various quality indexes of refined oil with those specified in a product standard. The detection method is suitable for rapid detection of the refined oil in a circulation field and a storage location, and rapid determination of various quality indexes of the sample to be measured can be realized by using spectral information.

Description

technical field [0001] The invention mainly relates to the technical field of detection, in particular to a method for quickly detecting the quality of refined oil. Background technique [0002] After the refinery produces industrial finished diesel and gasoline, the oil products will be continuously circulated before being sold. The circulation process includes pipeline transportation, oil product storage, vehicle transportation, ship transportation and other transit processes. Although there are strict inspection procedures for oil products when they leave the factory, there may be foreign impurities or foreign objects mixed into the oil products during these transfers. Therefore, sales departments at all levels need to inspect the oil products to ensure the quality of the sold oil products . The conventional oil inspection method is to take samples and carry out distillation. Taking the final boiling point of gasoline and the 95% recovery point of diesel oil as indicator...

AI Technical Summary

Problems solved by technology

In the existing oil product inspection operation device, the sampling, distillation, temperature data collection and other parts are separated, and the connection between the parts is completely controlled by humans. The whole operation process is time-consuming and laborious, far from the standard and scientific inspection operation. There is still a certain gap in the process; in addition, the temperature data is measured by a mercury thermometer, which is read by human eyes, and then manually recorded and collected. The measurement results are affected by many subjective factors such as people's habitual posture and reaction ability, resulting in relatively low data collection accuracy.

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