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A catalyst evaluation device for CO dehydrogenation purification with reaction gas recycling and controllable atmosphere

A technology for purifying catalysts and reactive gases, applied in measuring devices, control/regulating systems, non-electrical variable control, etc., it can solve problems such as changing the ratio of reaction raw materials, and the inability to realize gas recycling, reducing the proportion of Gas cycle, the effect of reducing consumption

Active Publication Date: 2021-08-10
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the reaction raw material gas ratio of the existing CO dehydrogenation purification catalyst evaluation device is relatively fixed, it cannot be changed even if the catalyst and reaction conditions change, and the reaction atmosphere in the reaction process can be controlled. At the same time, in order to solve the existing CO dehydrogenation Purification catalyst evaluation device The gas after the reaction is directly discharged, and the technical problem of gas recycling cannot be realized. To develop a CO dehydrogenation purification catalyst evaluation device with reaction gas recycling and atmosphere controllability is very important for the development of CO gas raw material gas in the oxo industry. The research and development of dehydrogenation purification catalyst is of great significance

Method used

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  • A catalyst evaluation device for CO dehydrogenation purification with reaction gas recycling and controllable atmosphere

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Check the airtightness of the device.

[0053] (2) Measure 100ml of CO dehydrogenation purification catalyst and load it into reactor 8, insert thermocouple 8e into the midpoint of the catalyst bed, and connect the front and back pipes of reactor 8.

[0054] (3) Close the second shut-off valve 2h, the third shut-off valve 3h, the fourth shut-off valve 4h, the fifth shut-off valve 5h, the sixth shut-off valve 6h, the ninth shut-off valve 9h, the eleventh shut-off valve 11h, the twelfth shut-off valve Stop valve 12h, open the first pressure stabilizing valve 1a, the first stop valve 1h, the first mass flow meter 1c, the seventh stop valve 7h, the eighth stop valve 8h, the eighth mass flow meter 8c, and the ninth mass flow meter 9c 8. The eighth pressure stabilizing valve 8a, adjust the valve opening of the differential pressure flowmeter 7g to 0, unscrew the back pressure valve 10f completely, and let in nitrogen gas to purge the system, control the flow rate of nitro...

Embodiment 2

[0061] According to the steps of Example 1, what are specifically adjusted are steps (3), (7) and (8), and steps (1), (2), (4), (5), and (6) remain unchanged.

[0062] Adjust step (3) to: close the second cut-off valve 2h, the third cut-off valve 3h, the fourth cut-off valve 4h, the fifth cut-off valve 5h, the sixth cut-off valve 6h, the ninth cut-off valve 9h, and the eleventh cut-off valve 11h, the twelfth stop valve 12h, open the first pressure stabilizing valve 1a, the first stop valve 1h, the first mass flow meter 1c, the seventh stop valve 7h, the eighth stop valve 8h, the eighth mass flow meter 8c, the first Nine mass flowmeter 9c, eighth pressure stabilizing valve 8a, adjust the valve opening of the differential pressure flowmeter 7g to 0, unscrew the back pressure valve 10f completely, blow in nitrogen gas to purge the system, and control the flow rate of nitrogen gas to 800ml / min, after purging for 10 minutes, open the ninth shut-off valve for 9 hours, tighten the b...

Embodiment 3

[0066] According to the steps of Example 1, what are specifically adjusted are steps (3), (7) and (8), and steps (1), (2), (4), (5), and (6) remain unchanged.

[0067] Adjust step (3) to: close the second cut-off valve 2h, the third cut-off valve 3h, the fourth cut-off valve 4h, the fifth cut-off valve 5h, the sixth cut-off valve 6h, the ninth cut-off valve 9h, and the eleventh cut-off valve 11h, the twelfth stop valve 12h, open the first pressure stabilizing valve 1a, the first stop valve 1h, the first mass flow meter 1c, the seventh stop valve 7h, the eighth stop valve 8h, the eighth mass flow meter 8c, the first Nine mass flowmeter 9c, eighth pressure stabilizing valve 8a, adjust the valve opening of the differential pressure flowmeter 7g to 0, unscrew the back pressure valve 10f completely, let nitrogen gas in to purify the system, and control the flow rate of nitrogen gas to 1000ml / min, after purging for 10 minutes, open the ninth shut-off valve for 9 hours, tighten the ...

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Abstract

The invention discloses a catalyst evaluation device for CO dehydrogenation purification with a controllable atmosphere of reaction gas recycling, which comprises a reaction gas intake system A, a pressurization system B, a reaction system C, an online analysis system D and a central processing system E. The advantages of this device: ①, realize the recycling of reaction gas, save a lot of raw material gas; ②, the components and proportions of reaction raw gas can be proportioned according to the reaction needs; ③, the use of online detection equipment can detect the reaction raw gas and reaction tail gas in real time; ④. The pressurization system can pressurize the low-pressure tail gas after the reaction to a pressure suitable for the reaction, and can adjust the reaction pressure; ⑤. The central processing system can monitor the entire reaction system. The invention realizes the controllable reaction atmosphere in the reaction process, solves the technical problem that the gas after reaction in the existing CO dehydrogenation purification catalyst evaluation device cannot be recycled, and is of great importance for the development of CO gas raw material gas dehydrogenation purification catalyst research and development in the carbonylation industry significance.

Description

technical field [0001] The invention relates to a catalyst evaluation device which can recycle reaction gas and controllable atmosphere, and in particular relates to the evaluation of CO dehydrogenation purification reaction catalyst model test or single-tube reaction. Background technique [0002] The catalyst evaluation device is one of the important instruments for catalyst performance evaluation in the laboratory, and is widely used in universities, research institutes and enterprises. Since many catalytic reactions involve high temperature, high pressure and combustible and explosive gases, the safety control of the catalyst evaluation device for the reaction atmosphere is particularly important. Many differential reactors and integral reactors in the laboratory have a small amount of catalyst loading (μl or ml scale), and the amount of reaction gas used is not large. Basically, the reacted gas is directly discharged to the atmosphere after preliminary treatment, but fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N27/62G05D27/02
CPCG01N27/62G01N30/02G01N2030/025G05D27/02
Inventor 姚元根周张锋乔路阳宗珊珊崔国静吴娟许东杰陈婕
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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