Coal slurry reactant sampling device

A sampling device and reactant technology, applied in sampling devices, wellbore/well components, earth-moving drilling, etc., can solve the problems of inability to sample container sampling, sampling method and equipment sampling, etc., and achieve simple purging and cleaning, Easy to operate, accurate sampling effect

Active Publication Date: 2007-04-11
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The Chinese patent No. ZL90214227.5 titled "A High-Temperature, High-Pressure Sampling Container" discloses a sampling device that can be used for high-temperature, high-pressure deep well sampling, but this sampling device is only suitable for high-temperature, high-pressure deep well steam Sampling, the sample taken does not contain solid particles, will not cause wear to the sampling device, and its structure is simple, therefore, the sampling container cannot be used for sampling during the coal liquefaction reaction process
[0005] The Chinese patent No. ZL96193860.9 titled "Sampling Method and Equipment" discloses a method and equipment for sampling from a fluid suspension composed of polymer particles and hydrocarbon diluents in olefin polymerization, but this The method is only applicable to the situation of low temperature and pressure, not to the situation of high temperature and high pressure. Therefore, in the process of coal liquefaction reaction, it is also impossible to use the sampling method and equipment for sampling

Method used

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  • Coal slurry reactant sampling device

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Embodiment

[0054] This embodiment illustrates: the application of the sampling device provided by the present invention in the coal direct liquefaction reaction system.

[0055] The raw material of the direct coal liquefaction unit is coal slurry prepared from 100-mesh coal powder (content 45% by weight), solvent oil, and catalyst. Coal slurry and hydrogen enter the first reactor, and after 45 minutes of reaction, enter the second reactor through valve 2 and pipeline 3. The specific operation steps are as follows:

[0056] 1. Open valves 5, 6, 8, 9, 10 and 11, replace the gas in the sampling device with nitrogen, and then close valves 5, 6, 8, 9, 10 and 11;

[0057] 2. Close valves 4 and 7, and close valves 15 and 16;

[0058] 3. Open valves 5, 6, 8 and 9. If the pressure in sampling container 31 is lower than 20MPa, open valves 14 and 17 to inject high-pressure solvent oil into the sampling container and pipeline. When the pressure reaches 20.0MPa, the pneumatic valve will Pressure b...

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Abstract

The coal slurry reactant sampling device includes one sampling container connected through pipes with valves to the material conveying pipeline; solvent oil pipes with valve; hydrogen pipes; one gas sampling pipe in the upper part of the sampling container; one sampling pipe in the lower part of the sampling container; and one inert gas pipe communicated to the sampling container. The coal slurry reactant sampling device is accurate and reliable in sampling, convenient and safe in operation, and can sampling repeatedly.

Description

technical field [0001] The invention relates to a coal slurry reactant sampling device, more specifically, a coal slurry reactant sampling device used in the coal liquefaction process. Background technique [0002] The coal liquefaction reaction is to pyrolyze the coal in the high-concentration coal slurry under high temperature and high pressure, hydrogenation and further decomposition under the action of a catalyst, and finally become stable liquid molecules. Since various factors such as coal slurry concentration, pressure, temperature, residence time, gas-liquid ratio and other coal liquefaction process conditions have positive and negative effects on the coal liquefaction reaction and the economics of the liquefaction plant, a large number of experiments and economical tests must be carried out. Repeated comparisons to determine the appropriate process conditions. Therefore, during the coal liquefaction reaction, in order to monitor the reaction state and determine the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/02E21B49/00
Inventor 舒歌平章序文杨葛灵朱豫飞高山松李永伦王洪学
Owner CHNA ENERGY INVESTMENT CORP LTD
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