Straight tube for chemical adsorption instrument and sample loader thereof

A chemical adsorption and adsorption tube technology, which is applied in the field of straight chemical adsorption instrument tubes and sample loaders, can solve problems such as troublesome cleaning of adsorption tubes and difficulty in loading samples, and achieves simple structure, easy cleaning, and good structural airtightness Effect

Inactive Publication Date: 2012-07-18
TIANJIN XIANNQUAN IND & TRADE DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The use of U-shaped tubes also has the problem of difficult loading of samples, and because the bott

Method used

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  • Straight tube for chemical adsorption instrument and sample loader thereof
  • Straight tube for chemical adsorption instrument and sample loader thereof
  • Straight tube for chemical adsorption instrument and sample loader thereof

Examples

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Embodiment Construction

[0024] The tube for straight chemical adsorption instrument and the sample loader thereof of the present invention will be described below in conjunction with the accompanying drawings and specific examples.

[0025] figure 1 It is the structural block diagram of the chemical adsorption instrument (excluding the six-way valve); figure 2 It is the structural flow chart of the chemical adsorption instrument in the state of gas extraction (including the six-way valve); image 3 It is the structural flow diagram of the chemical adsorption instrument in the intake state (including the six-way valve). Such as Figure 1 to Figure 3 As shown, the chemical adsorption instrument is mainly composed of an air intake system 1, a reaction adsorption furnace 2, and a detector 3. The reaction adsorption gas enters the reaction adsorption furnace 2 at a certain flow rate from the air intake system 1, and is detected by the detector 3. Changes in reaction or adsorption. The detector 3 is m...

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Abstract

The invention relates to a straight tube for a chemical adsorption instrument and a sample loader thereof. The straight tube for the chemical adsorption instrument comprises an adsorption tube, a duty ratio tube and a thermowell, wherein the duty ratio tube is arranged at the inner part of the adsorption tube, and two ends of the duty ratio tube are open; and one end of the thermowell is airtight. The sample loader is composed of a sample loading funnel and a tamper. As the straight tube for the chemical adsorption instrument and the corresponding sample loader are used, samples can be uniformly filled, the impulsive force of airflow is avoided to drive silica wool and the samples, and meanwhile the silica wool and the samples are prevented from being tight to jam a gas path. The whole structure is good in airtight property and the straight tube can be applied to atmospheric or high pressure adsorption instruments. The structure is very simple and the straight tube is easily dismantled, the wall of the adsorption tube is easily cleaned, and the samples are easily loaded and replaced. A thermocouple is inserted into a reacting sample, so that the true temperature of the samples can be well responded, and temperature control is more accurate. Thus, the straight tube for the chemical adsorption instrument, provided by the invention, can be perfectly applied to the adsorption instrument through combing with the corresponding sample loader.

Description

technical field [0001] The invention belongs to the structural field of catalyst property characterization instruments, and in particular relates to a tube for a straight chemical adsorption instrument and a sample loader thereof. Background technique [0002] The chemisorption instrument is an important instrument for studying the properties of catalysts, and it is almost indispensable in the study of catalyst structure and performance. The chemical adsorption instrument is mainly composed of an air intake system, a reaction adsorption furnace and a detector, among which the detector is mainly a thermal conductivity detector TCD; Ways to study the performance of catalysts have been widely recognized and applied, such as H 2 -TPD can be used to study the redox performance of catalysts, NH 3 -TPD and CO 2 -TPD can be used to study the acid-base properties of catalysts. In addition, the sampling valve is an optional accessory, which is mainly used in pulse adsorption and ...

Claims

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Application Information

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IPC IPC(8): G01N31/00G01N1/36
Inventor 赵铁英
Owner TIANJIN XIANNQUAN IND & TRADE DEV
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