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Multicomponent gas adsorption simulation experiment method and device

A technology of gas adsorption and simulation experiments, which is applied in the direction of measuring devices, material separation, and analysis of materials, can solve problems that have been rarely studied by previous researchers, and achieve the effects of long diffusion time, reduced diffusion time, and airtightness assurance

Inactive Publication Date: 2016-10-12
HENAN POLYTECHNIC UNIV
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Problems solved by technology

[0005] Existing isobaric diffusion system, few previous studies

Method used

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  • Multicomponent gas adsorption simulation experiment method and device
  • Multicomponent gas adsorption simulation experiment method and device
  • Multicomponent gas adsorption simulation experiment method and device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] 1. Experimental samples.

[0040] Referring to "Measurement Method of Methane Adsorption of Coal (High Pressure Volumetric Method)" MT-T 752-1997, 60-80 mesh granular coal samples were used in the experiment, and industrial analysis and pore characteristics determination of the coal samples were carried out at the same time.

[0041] 2. If figure 1 The connection of the experimental device, the determination of the standard volume of the experimental device and the air tightness test are shown.

[0042] First use N 2 Measure the air tightness of the overall experimental equipment; then measure the standard volume V of the public pipeline, inflatable tank, and adsorption tank in sequence p , V r1 , V s .

[0043] (1) The first part of the public pipeline standard volume V p1 , Standard volume V of public pipeline p Determination.

[0044] The standard volume of the public pipeline of this experimental device consists of two parts: the first part of the public pip...

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Abstract

The invention discloses a multicomponent gas adsorption simulation experiment method and a multicomponent gas adsorption simulation experiment device. The device includes a quantitative gas-charging system, an isothermal adsorption and desorption system, a vacuumizing device and a gas concentration analysis system. The method comprises the steps: firstly, carrying out high pressure gas injection experiments, injecting non methane gas by using high pressure to be mixed with methane, recording the adsorption equilibrium state of a coal body to the mixed gas, followed by, carrying out an isobaric diffusion experiment, and mixing the gas by using diffusion caused by concentration difference. Through qualitative and quantitative comparative analysis of two groups of experiments, the pressure effect can be separated from the comprehensive effects, and then a mechanism of action of the non methane gas on the methane in coal is studied. A complete set of experimental research system is developed, some technical problems under the isobaric diffusion experimental conditions are solved, diffusion problems of long diffusion path and small channels are solved, and the method and the device have important significance on studying adsorption characteristics of the gas in the coal.

Description

technical field [0001] The invention relates to the field of testing coal-to-gas adsorption performance, in particular to a method and a device for measuring the ability of different gases to replace or displace methane in coal. Background technique [0002] Inspired by the “gas flooding oil” technology of the petroleum system, at the end of the 20th century, the experiment of injecting CO2 into coal seams in the San Juan Basin of the United States to enhance the recovery of coalbed methane (CO2-ECBM) was successful. Many experts and scholars at home and abroad have successively carried out CH4 , N2, CO2 unit and the adsorption-desorption study of multiple gases. [0003] Scholars at home and abroad have come to the conclusion when studying the mechanism of gas injection replacement / displacement of methane in coal seams that the gas can be desorbed from coal regardless of the injection of strong adsorption gas or weak adsorption gas, thereby reducing the gas content of coal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/04G01N30/02G01M3/00
CPCG01M3/00G01N7/04G01N30/02
Inventor 杨宏民邢述团王兆丰鲁小凯梁龙辉陈立伟王彬
Owner HENAN POLYTECHNIC UNIV
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