Analysis method of hydrocarbon composition in asphalt, heavy oil and tar

An analytical method and technology for heavy oil, applied in analytical materials, material separation, measuring devices, etc., can solve the problems of cumbersome operation, affecting the original appearance of the sample, etc., and achieve the effect of less sample consumption and wide adaptability

Inactive Publication Date: 2003-07-09
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0003] The existing hydrocarbon group composition analysis method based on high-performance liquid chromatography can only focus on the individual product itself. In order to use this method, it is often necessary to drive off the solvent in the sample, which is not only cumbersome to operate, but also affects the original appearance of the sample

Method used

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  • Analysis method of hydrocarbon composition in asphalt, heavy oil and tar
  • Analysis method of hydrocarbon composition in asphalt, heavy oil and tar
  • Analysis method of hydrocarbon composition in asphalt, heavy oil and tar

Examples

Experimental program
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Effect test

Embodiment 1

[0062] Sample: 33A; the instrument used for hydrocarbon group composition analysis is Shimadzu LC-3A high performance liquid chromatograph; the ultraviolet detector and the differential detector are connected in series, the ultraviolet wavelength is fixed at 254nm, the chromatographic column size is 25cm long, and the diameter is 0.5- 0.8cm; column support ZorbaxNH 2 , mobile phase: hexane; flow rate is 1.8ml / min; sample injection volume is 20μl. The test samples are listed in Table 1, and the analysis results of hydrocarbon group composition are listed in Table 2. Spectrum shown in figure 1 (ultraviolet detection), figure 2 (difference).

Embodiment 2

[0064] Sample: 30A; mobile phase: hexane; flow rate: 1.5ml / min; sample injection volume: 15μl. Spectrum shown in image 3 (ultraviolet detection), Figure 4 (difference), all the other are with embodiment 1. The analysis results of hydrocarbon group components are listed in Table 2.

Embodiment 3

[0066] Sample: 30B; mobile phase: hexane; flow rate: 2ml / min; sample injection volume: 10μl. Spectrum shown in Figure 5 (ultraviolet detection), Figure 6 (difference), all the other are with embodiment 1. The analysis results of hydrocarbon group components are listed in Table 2.

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Abstract

The present invention relates to a method for analyzing hydrocarbon group composition in the asphalt, heavy oil and tar. It is implemented by adopting high-performance liquid chromatography as main analysis method. Said invention successfully finds the mobile phase for liquid chromatography which does not affect sample solvent determination, and utilizes the combination application of UV detector and differential detector to mave detection and data processing as key portion to analyze the above-mentioned various products (for example coal liquefied product, cracked product and catalytic product), and can be obtain good separation result.

Description

Technical field: [0001] The invention belongs to an analysis method for the composition of hydrocarbon groups in asphalt, heavy oil and tar, in particular to an analysis method for the composition of hydrocarbon groups in asphalt, heavy oil and tar contained in a solution. Background technique: [0002] Different bitumen, heavy oil and tar products can be obtained through cracking, catalytic cracking, liquefaction and hydrogenation of coal, petroleum and residual oil at high or medium temperature. The composition of these products is extremely complex, and the analysis and characterization of the products must be carried out in conjunction with process development and application. Among the existing characterizations, the analysis of hydrocarbon group composition is the most important, and the characterization by high performance liquid chromatography is a rapid and accurate instrumental analysis method. [0003] The existing hydrocarbon group composition analysis method ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/78G01N30/88
Inventor 张昌鸣令孤文生李允梅薛永兵杨建丽刘振宇
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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