Method for measuring content of sodium metal in oil sand based on near infrared spectrum

A technology of near-infrared spectroscopy and measurement method, which is applied in the field of measurement of metal sodium content in oil sands, can solve problems such as oil sands that have not been reported, and achieve the effects of shortening detection time, reducing equipment damage, and small external interference

Inactive Publication Date: 2016-09-21
JIANGNAN UNIV
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Problems solved by technology

However, there is no report on the determination of metal content in oil sands by near-infrared spectroscopy.

Method used

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  • Method for measuring content of sodium metal in oil sand based on near infrared spectrum
  • Method for measuring content of sodium metal in oil sand based on near infrared spectrum
  • Method for measuring content of sodium metal in oil sand based on near infrared spectrum

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Embodiment Construction

[0029] In order to make the objects and advantages of the present invention clearer, the implementation steps of the present invention will be described in detail below in conjunction with examples.

[0030] Step 1: Collect oil sand samples under different geological conditions. The number of samples in this case is 200, of which 100 samples are used as calibration sets, the other 65 samples are used as verification sets, and the remaining 35 samples are used as unknown sample experiments;

[0031] Step 2: Determine the content of sodium metal in all samples according to the traditional standard method and record the data.

[0032] Step 3: Place the calibration set samples in a cold box, keep the temperature at 4°C, and wait for the sample temperature to reach a stable state.

[0033] Step 4: Use a reflective near-infrared probe to contact the surface of the sample, and collect near-infrared spectral data of the sample in the calibration set.

[0034] Step 5: Place the sample...

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Abstract

The invention relates to a method for nondestructively measuring content of sodium metal in oil sand based on a near infrared spectrum. The method comprises the following steps of: (1) collecting oil sand samples and measuring the content of sodium metal in all the samples according to a standard method; (2) collecting sample spectrums by use of a reflection-type near-infrared analyser probe; (3) performing spectrum pretreatment, reducing dimensionality by use of principal component analysis, and selecting modeling wave bands; (4) establishing a sodium metal content quantitative calibration model by use of partial least squares; and (5) measuring the spectrums of the to-be-measured samples, and verifying the content of sodium metal by use of the established model. Compared with a traditional measurement method, the method provided by the invention is free from complicated sample pretreatment, and has the characteristics of simplicity in operation, rapidness, non-destructive property, no sample pollution and no environmental pollution, and the like, so that a new method is provided for analyzing the metal content; Furthermore, the method can be used for real-time online quantitative analysis, and has direct practical significance in performing real-time control and optimization on an oil sand processing process, improving the recovery rate and the like.

Description

technical field [0001] The invention relates to the field of oil sand rapid analysis and spectral data processing, in particular to a method for measuring sodium metal content in oil sand based on near-infrared spectroscopy. Background technique [0002] Sodium, potassium, calcium, magnesium, iron and other metal elements in oil sands have a great impact on the recovery rate of petroleum products, equipment corrosion, energy utilization efficiency and environmental pollution indicators during oil sand processing. In the wastewater and waste residue discharged from processing plants, high concentrations of sodium metal will pollute the environment and endanger human health. In addition, the sodium content in oil sands can also be used as an important parameter in oil species identification and reservoir engineering. Therefore, accurate and rapid determination of sodium content in oil sands is of great significance to the analysis and control of petroleum processing and the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/359G01N21/3563
CPCG01N21/359G01N21/3563
Inventor 栾小丽刘进万海英
Owner JIANGNAN UNIV
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