Method for determining content of heavy component in coal liquefaction products

A determination method and heavy component technology are applied in the field of determination of heavy component content in coal liquefaction products, which can solve problems such as long time consumption, and achieve the effects of shortening extraction time, improving extraction efficiency, and improving measurement efficiency.

Inactive Publication Date: 2015-08-26
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for measuring the content of heavy components in coal liquefaction products, to solve the time-consuming problem of the measurement methods in the prior art

Method used

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  • Method for determining content of heavy component in coal liquefaction products
  • Method for determining content of heavy component in coal liquefaction products
  • Method for determining content of heavy component in coal liquefaction products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]Put 3.12g of the coal direct liquefaction residue sample in a sealed container, put n-hexane as the extraction solvent in the sealed container, heat the sealed container to 110°C, pressurize to 450psi, and extract for 3 hours to obtain n-hexane The alkane soluble matter is 0.336g, and the weight percent of n-hexane soluble matter in the coal direct liquefaction residue sample is 10.77% through calculation. The process parameters of the specific extraction process are shown in Table 1, and the measurement results are shown in Table 2.

Embodiment 2

[0037] 3.12g of coal direct liquefaction residue sample and 15.60g of quartz sand are placed in a sealed container, and toluene is placed in a sealed container, and the sample is extracted by the same extraction method as in Example 1. The specific extraction process is The parameters are shown in Table 1, and the measurement results are shown in Table 2.

Embodiment 3

[0039] 3.12g of coal direct liquefaction residue sample and 60.24g of silica gel are placed in a sealed container, and toluene as an extraction solvent is placed in a sealed container, and the sample is extracted by the same extraction method as in Example 1. The specific extraction The technological parameters of the process are shown in Table 1, and the measurement results are shown in Table 2.

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Abstract

The invention provides a method for determining the content of a heavy component in coal liquefaction products. The determination method comprises the following steps: S1, putting a coal liquefaction product sample and an extraction solvent into a seal device; S2, extracting the heavy component in the coal liquefaction product sample by utilizing the extracting solvent so as to obtain the heavy component at the extracting temperature of 25-200 DEG C; and S3, calculating the weight percentage of the heavy component in the coal liquefaction product sample. The method can be used for rapidly and accurately determining the content of the heavy component in the coal liquefaction products.

Description

technical field [0001] The invention relates to the field of coal liquefaction, in particular to a method for measuring the content of heavy components in coal liquefaction products. Background technique [0002] Coal direct liquefaction, as an efficient and clean coal technology that can alleviate the contradiction between the supply and demand of my country's petroleum resources, has entered the stage of commercial demonstration operation. Coal liquefaction heavy oil, residue, asphalt and other products produced by the direct coal liquefaction process contain polycyclic aromatic hydrocarbons, Asphaltene, pre-asphaltene and other heavy components, the accurate and rapid determination of the content of these components is of great significance for the calculation of coal liquefaction oil yield, coal conversion rate, coal liquefaction benefits, etc., and for the further deep processing of coal liquefaction products Utilization is also instructive. [0003] Soxhlet extraction m...

Claims

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Application Information

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IPC IPC(8): G01N1/34
Inventor 姜元博李克健向春兰高山松邹云冲苏娟杨葛灵章序文王洪学
Owner CHNA ENERGY INVESTMENT CORP LTD
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