Method for analyzing coal pyrolysis

An analysis method and coal pyrolysis technology, applied in the field of coal pyrolysis analysis, can solve problems such as insufficient thoroughness and detail in coal analysis, and inability to provide a more detailed data basis for coal processing, achieving accurate and reliable data, thorough analysis, The effect of uniform heat transfer

Inactive Publication Date: 2009-12-09
CHINA COAL ENERGY HEILONGJIANG COAL CHEM
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Problems solved by technology

[0006] During the research process, the inventor found that due to the large variety of coal, the analysis of coal in the existing analysis methods is not thorough and

Method used

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  • Method for analyzing coal pyrolysis
  • Method for analyzing coal pyrolysis

Examples

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Embodiment 1

[0047] See figure 1 , figure 1 It is a process flow diagram of the coal pyrolysis analysis method provided in Example 1.

[0048] This embodiment mainly includes the following steps, which are respectively:

[0049] (1) Heat 2.704kg of low-quality A coal in the retort, the particle size of A coal is less than 6mm, stir while heating, heat to 300°C, and the heating rate is 5°C / min (Celsius / minute),

[0050] Keep the temperature constant for 10 minutes, and the products generated at this time pass through the oil-water receiving bottle and the absorption bottle set in turn; take the sample to analyze the collected products in the oil-water receiving bottle, and analyze the gas passing through the absorption bottle;

[0051] (2) Continue heating, stir while heating, heat to 500°C, and the heating rate is 5°C / min (Celsius / minute),

[0052] Keep the temperature constant for 10 minutes, and the products generated at this time pass through the oil-water receiving bottle and the ab...

Embodiment 2

[0059] The difference between this embodiment and embodiment 1 is that the heating rate is 4° C. / min.

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Abstract

The invention discloses a method for analyzing coal pyrolysis, which comprises the following steps: a) under a condition isolated from the air, heating more than or equal to 0.5 kilogram of coal, and stirring the coal in the heating process, wherein the rate of temperature rise is less than or equal to 5 DEG C per minute; b) keeping the temperature constant when the temperature is raised to a set value; c) passing the generated product through an oil-water receiving bottle and an absorption bottle set in turn; and d) analyzing the collected product in the oil-water receiving bottle, and analyzing the gas passing through the absorption bottle. Compared with the prior art, the method for analyzing the coal pyrolysis performs more thorough analysis on the coal and the pyrolysis product, and the data obtained by the analysis is also more informative and credible. The method for analyzing the pyrolysis of the coal is applicable to the detailed analysis of various coals and the pyrolysis products thereof.

Description

technical field [0001] The invention relates to a coal pyrolysis analysis method, which belongs to the field of coal chemical industry. Background technique [0002] Coal is the most abundant fossil fuel available on the earth. my country is a country rich in coal resources, and its reserves are far greater than those of oil and natural gas. According to relevant statistics, at the end of the 20th century, my country's recoverable coal reserves were about 800 billion tons, and the output was about 1.4 billion tons. The reserves and output are among the top in the world, and with the development of exploration work, they are still increasing year by year. [0003] my country's coal resources are not only large in mining reserves and output, but also relatively complete in variety. The main distribution areas are North China and Northwest China, followed by Southwest China and East China. Among them, coking coal accounts for about 42%; long-flame coal, non-caking coal and w...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N1/44G01N1/34G01N33/22G01N25/20G01N25/52G01N30/02G01N11/00G01N9/00
Inventor 王伟东牛玉梅赵守国张静初海滨邹春玉宋军王永学刘晓生孙立国王艳华邢方亮
Owner CHINA COAL ENERGY HEILONGJIANG COAL CHEM
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