A rare gas adsorption and trapping device and its adsorption and trapping process and application

A rarefied gas and process technology, applied in measurement devices, separation methods, instruments, etc., can solve problems such as difficulty in analysis and detection, inability to use industrial production, etc., and achieve the effect of improving efficiency, increasing regeneration depth, and uniform gas distribution

Active Publication Date: 2022-06-17
CTBT BEIJING NAT DATA CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it cannot be used in industrial production, and it is difficult to be used in analysis and detection based on rare gas capture and concentration in other fields
CN 208350753 U discloses a detection device for measuring rare gas, but the focus of this utility model is to provide a platform that is convenient for the staff to use on site and can effectively protect the detector, and has never involved the detection technology itself

Method used

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  • A rare gas adsorption and trapping device and its adsorption and trapping process and application
  • A rare gas adsorption and trapping device and its adsorption and trapping process and application
  • A rare gas adsorption and trapping device and its adsorption and trapping process and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The volume of the adsorption bed is 5L, the loading of granular carbon molecular sieve is 2.5kg, the temperature of the feed gas (F1) is 25°C, the content of xenon is 0.001‰ (1ppm), the oxygen is 21%, the rest is nitrogen, and the adsorption space velocity is 0.1m / s. like figure 1 and figure 2 As shown, the adsorption cycle process is as follows: the raw gas (F1) enters the adsorber from the bottom, the unadsorbed gas (S2) flows out from the gas outlet at the top of the adsorber, and is adsorbed for 12 minutes at an adsorption temperature of 30 °C and an adsorption pressure of 0.3 Mpa, and then stops. Feed the raw material gas (F1); decompress in the forward direction for 30 seconds to -0.06Mpa, close the outlet of the unadsorbed gas (S2); then open the outlet of the product gas (P1), heat the adsorption bed by microwave to 50 ℃ and vacuumize in the reverse direction for 10 Minute to -0.08Mpa to collect the product gas (P1), then close the product gas (P1) outlet; ope...

Embodiment 2

[0055] The conditions of the adsorption bed and the feed gas are the same as those of Example 1. like figure 1 and figure 2 As shown, the adsorption cycle process is as follows: the feed gas (F1) enters the adsorber from the bottom, the unadsorbed gas (S2) flows out from the gas outlet at the top of the adsorber, and is adsorbed for 15 minutes under the conditions of adsorption temperature 30 °C and adsorption pressure 0.3 Mpa, and then stops. Feeding of raw material gas (F1); decompressing in the forward direction for 30 seconds to -0.06Mpa, closing the outlet of unadsorbed gas (S2) at the top of the adsorber; then opening the outlet of product gas (P1), heating the adsorption bed by microwave to 75°C and reversed Vacuum for 8 minutes to -0.08Mpa to collect the product gas (P1), then close the product gas (P1) outlet; open the feed gas (F1) inlet and the unadsorbed gas (S2) outlet; carry out the feed gas (F1) purge for 20 minutes Cool down to 30°C; then increase the pressu...

Embodiment 3

[0057] The conditions of the adsorption bed and the feed gas are the same as those of Example 1. like figure 1 and figure 2 As shown, the adsorption cycle process is as follows: the feed gas (F1) enters the adsorber from the bottom, the unadsorbed gas (S2) flows out from the gas outlet at the top of the adsorber, and is adsorbed for 15 minutes under the conditions of adsorption temperature 30 °C and adsorption pressure 0.3 Mpa, and then stops. Feed the raw material gas (F1); decompress in the forward direction to -0.06Mpa for 40 seconds, close the outlet of the unadsorbed gas (S2); then open the outlet of the product gas (P1), heat the adsorption bed by microwave to 90 ℃ and vacuumize in the reverse direction for 5 Minute to -0.08Mpa to collect the product gas (P1), then close the product gas (P1) outlet; open the feed gas (F1) inlet and the unadsorbed gas (S2) outlet; carry out the feed gas (F1) purge for 30 minutes and cool down to 30 ℃; then increase the pressure with th...

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PUM

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Abstract

The invention belongs to the application field of gas adsorption and separation, in particular to a rare gas adsorption and trapping device and its adsorption and trapping process and application. Including shell, forward air intake pipeline, forward exhaust pipeline, reverse exhaust pipeline, adsorber is placed in the shell, the adsorber is a radial flow or axial flow adsorption bed, and the adsorber has built-in adsorbent and heat exchange Assemblies, the cooling / heating medium pipeline I and the cooling / heating medium pipeline II are arranged on both sides of the shell. The adsorbent is a high thermal conductivity adsorbent, and the high thermal conductivity adsorbent is a mixture of a porous material and a thermal conductivity agent. Through the operation process of raw material gas adsorption and cooling, raw material gas pressure boost, forward adsorption, forward decompression and exhaust, temperature rise and reverse vacuum desorption, the components in the raw material gas are adsorbed and separated. The thin gas adsorption and trapping device provided by the invention has short process flow, strong raw material gas adaptability, and high concentration multiple, which solves the problems of low efficiency and long cycle in the existing thin gas concentration detection and rapid purification of toxic and harmful gases.

Description

technical field [0001] The invention belongs to the application field of gas adsorption and separation, in particular to an analysis, detection, production or treatment device and method for the adsorption and capture of rarefied gases. Background technique [0002] With the continuous progress of analysis and detection technology, more and more rare gas detection methods have been developed: infrared absorption spectroscopy, electrochemical method, ultraviolet-visible spectrophotometry and other techniques can be applied to the qualitative and (or) Quantitative analysis. However, the measurement sensitivity of the above method is low; it needs to be realized under various limited conditions, and generally can only be carried out under laboratory conditions; thus it is time-consuming, labor-intensive, costly, and difficult to popularize. [0003] Rare gases have extremely valuable and special chemical and physical properties, and have important application value in many dep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/04B01D53/047G01N30/06
CPCB01D53/0462B01D53/047G01N30/06
Inventor 孙天军余忆玄李涵清陶平王昊楠赵颖平邵秘华
Owner CTBT BEIJING NAT DATA CENT
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