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Adsorbing material performance testing device and using method thereof

A technology for testing devices and adsorption materials, applied in the direction of using substance absorption and weighing

Inactive Publication Date: 2015-06-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no clear theory on the selective adsorption mechanism of adsorbents for mixed gases, and the in-depth and improved theoretical research on adsorbent materials depends more on the improvement of testing methods and the optimization of devices developed simultaneously.

Method used

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  • Adsorbing material performance testing device and using method thereof
  • Adsorbing material performance testing device and using method thereof
  • Adsorbing material performance testing device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Application environment: To study the influence of different pressures on the fixing ability of zeolite molecular sieves at zero humidity and a certain temperature.

[0036] Such as Figure 4 As shown, the gas mixer 5 includes a test gas air pipe 5a, a swirl blade 5b, a housing 5c, a baffle 5d, a test gas outlet 5e and a solid blade shaft 5f, wherein: 6 swirl blades 5b are coaxially arranged, two The gaps between adjacent swirl blades 5b form 6 gas paths, and three baffles 5d are arranged at intervals at the front ends of the 3 gas paths; the test gas gas pipe 5a is connected to the solid blade shaft 5f, and the corresponding three gas paths at the end of the test gas gas pipe 5a The gas paths provided with baffles are three test gas outlets 5e. The three air paths without baffles communicate with the air pipes, which are air swirl channels. The test gas passes through the test gas pipe 5a, and enters the baffled swirl channel through the test gas outlet 5e, and the ai...

Embodiment 2

[0041] Application environment: test the interaction between different gas components in the adsorption process of activated carbon to multi-component organic gases at normal temperature and pressure, such as competitive inhibition of adsorption, synergistic adsorption, substances with strong adsorption capacity for weak adsorption Substance adsorption, etc. Test gas selection xylene, toluene, n-propanol, ethanol.

[0042] According to Figure 2(a), when studying the adsorption of activated carbon on multi-component mixed gases at normal temperature and pressure, the air compressor 1 is used as the system power device, and the test gas generation source is a high-pressure gas tank. Gas partial pressure, calculate the flow ratio of air and mixed gas, set up 4 subsection gas sampling ports 9-2, monitor the concentration of mixed gas in each section at the same time in the same adsorption process respectively. Then the adsorbent cartridge 14 is filled with activated carbon, and f...

Embodiment 3

[0044] Application environment: To study the adsorption mechanism of modified activated carbon on formaldehyde, the adsorption temperature is 30°C, the humidity is 0, the desorption temperature is 120°C, the temperature is 0°C, and the pressure in the test section is 100kPa.

[0045] According to Figure 2(a), when studying the adsorption mechanism of modified activated carbon to formaldehyde, the air compressor 1 is used as the system power device, and the test gas generation source is a high-pressure formaldehyde gas tank. According to the partial pressure of the formaldehyde to be measured, the air and formaldehyde flow ratio. Then the modified activated carbon is filled in the adsorbent cylinder 14, and fixed on the adsorbent cylinder hoop 16, the swing cylinder 18 is screwed onto the electronic balance 19 to weigh the initial mass, and then the adsorbent cylinder 14 is screwed to the adsorption tank 12 Below, the reciprocating cylinder 21 docks and clamps the adsorbent car...

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Abstract

The invention relates to an adsorbing material performance testing device and a using method of the adsorbing material performance testing device. The adsorbing material performance testing device comprises a main body testing system, a thermodynamic desorption system, an automatic control system, an air compressor, an air filtering dehumidifier, a testing gas generation source, an air drying part, a gas mixer, an electromagnetic flowmeter, a temperature and humidity sensor, a pressure sensor, a temperature and humidity controller, a solenoid valve, an upstream gas sampling hole, an adsorption tank, a sealing ring, an adsorbent barrel, an adsorbent barrel coupling, an annular sampling ring, a segmental gas sampling hole, a gas concentration detector, an elastic pipe section, a downstream gas sampling hole, a vacuum pump, an air cylinder swinging arm, an oscillating cylinder, an electronic balance, a reciprocating cylinder, a circuit and a main machine; the adsorbent performance testing system has regulation performance under certain pressure at certain temperature in a certain humidity range due to cooperation of the above components, the adsorbing material performance testing device can be applied to the competition and interference action mechanism when researching adsorption of all components of mixed gas. The adsorbing material performance testing device has the characteristics of advanced and reasonable structure, automation control and complete function, and can be operated simply and rapidly and the like.

Description

technical field [0001] The invention belongs to the field of performance detection of adsorption materials. In particular, it relates to an adsorption material performance testing device and a use method thereof. Background technique [0002] When the gaseous substance is in contact with porous media (such as activated carbon, silica gel, porous clay ore, polymer adsorption resin, etc.), the target gas component is adsorbed on the solid substance by using the unbalanced molecular attraction or chemical bond force existing on the solid surface. The purpose of gas separation is achieved on the surface. This gaseous separation process is called adsorption method. Adsorption operation is widely used in petrochemical industry, organic chemical industry, pollution gas treatment and other fields, and has become an important operation unit. [0003] Adsorbents have unique adsorption surface structure characteristics, strong selective adsorption capacity, and good surface chemical p...

Claims

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Application Information

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IPC IPC(8): G01N5/02
Inventor 徐斌吴娅龚宇
Owner TONGJI UNIV
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