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Method for analysis of oil product monocyclic aromatic hydrocarbon

A technology for single-ring aromatics and oil products, which is applied in the field of near-infrared analysis of single-ring aromatics in oil products, can solve the problems of long analysis period, etc., and achieve the effect of simple method, easy implementation, and low investment and maintenance costs

Inactive Publication Date: 2017-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

GC method can obtain a lot of qualitative and quantitative information through cutting, column separation and backflushing, etc., but its analysis cycle is long

Method used

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  • Method for analysis of oil product monocyclic aromatic hydrocarbon
  • Method for analysis of oil product monocyclic aromatic hydrocarbon
  • Method for analysis of oil product monocyclic aromatic hydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Near-infrared analysis method for single-ring aromatics in light oil products:

[0034] 1) Collect samples: collect naphtha, top oil, raffinate, and aviation kerosene; measure the content of single-ring aromatics by gas chromatography, and obtain the mass percentage data of C6 aromatics (m%) and C7 aromatics mass percentage data (m%), mass percentage data of C8 aromatics (m%), mass percentage data of C9 aromatics (m%), mass percentage data of C10 aromatics (m%).

[0035] 2) Collection of spectra: The near-infrared spectrum of the sample was collected by the Antaris II Fourier near-infrared spectrometer of American Thermo-Fisher Company with a transmission sampling module; the collection range was 12000-4000cm -1 , scan 32 times to get the average spectrum, and scan the background before each sample experiment; the spectrum is collected using a 6mm sample tube.

[0036] Preparation of the near-infrared spectrometer: when starting up, turn on the power of the near-infrar...

Embodiment 2

[0042] Near-infrared analysis method for single-ring aromatics in light oil cracking liquid phase oil:

[0043]1) Collect samples: collect naphtha and tops oil cracking liquid phase oil products; measure the content of single-ring aromatics by gas chromatography, and obtain the mass percentage data of C6 aromatics (m%) and C7 aromatics mass percentage data (m%) %), mass percent data of C8 aromatics (m%), mass percent data of C9 aromatics (m%), mass percent data of C10 aromatics (m%).

[0044] 2) Collection of spectra: The near-infrared spectrum of the sample was collected by the Antaris II Fourier near-infrared spectrometer of American Thermo-Fisher Company with a transmission sampling module; the collection range was 12000-4000cm -1 , scan 32 times to get the average spectrum, and scan the background before each sample experiment; the spectrum is collected using a 1mm cuvette.

[0045] Preparation of the near-infrared spectrometer: when starting up, turn on the power of the ...

Embodiment 3

[0052] Near-infrared analysis method for single-ring aromatics in heavy oil pyrolysis liquid phase oil:

[0053] 1) Collect samples: collect hydrogenated tail oil cracking liquid phase oil; measure its single-ring aromatics content by gas chromatography, and obtain C6 aromatics mass percentage data (m%), C7 aromatics mass percentage data (m%), The mass percentage data of C8 aromatics (m%), the mass percentage data of C9 aromatics (m%), and the mass percentage data of C10 aromatics (m%).

[0054] 2) Collection of spectra: The near-infrared spectrum of the sample was collected by the Antaris II Fourier near-infrared spectrometer of American Thermo-Fisher Company with a transmission sampling module; the collection range was 12000-4000cm -1 , scan 32 times to get the average spectrum, and scan the background before each sample experiment; the spectrum is collected using a 6mm sample tube.

[0055] Preparation of the near-infrared spectrometer: when starting up, turn on the power ...

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Abstract

The invention relates to a method for analysis of an oil product monocyclic aromatic hydrocarbon and concretely relates to a near infrared analysis method of an oil product monocyclic aromatic hydrocarbon. The method comprises 1, collecting an oil product, 2, acquiring a near-infrared spectrum of the oil product, and 3, correlating the near-infrared spectrum of the oil product and the detected monocyclic aromatic hydrocarbon content through a chemometrics method to establish a prediction model.

Description

technical field [0001] The invention relates to a method for analyzing single-ring aromatic hydrocarbons in oil; more specifically, the present invention relates to a method for analyzing near-infrared aromatic hydrocarbons in oil. Background technique [0002] Ethylene cracking is the source of downstream chemical industry. The aromatic components such as benzene, toluene, xylene and ethylbenzene rich in oil products are important raw materials for the preparation of reagents such as BTX (benzene, toluene and xylene) aromatics, and are also intermediates for fine chemicals such as organic synthesis, medicine and dyes. Synthetic raw materials for the body. With the increase of ethylene production capacity year by year, the output of liquid phase oil, which accounts for about 15% of ethylene production capacity, is also increasing. The comprehensive utilization of such resources will help to improve the overall economic benefits of ethylene plants and is of great significan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/28G06F19/00
Inventor 刘逸张兆斌司宇辰巴海鹏薛丽敏南秀琴
Owner CHINA PETROLEUM & CHEM CORP
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