Nitrogen dioxide adsorbent, nitrogen dioxide absorbing device and manufacturing method of nitrogen dioxide absorbing device

Abstract

The invention discloses nitrogen dioxide adsorbent, a nitrogen dioxide absorbing device and a manufacturing method of the nitrogen dioxide absorbing device. The nitrogen dioxide adsorbent comprises, by weight, 15-60 parts of calcium oxide, 10-50 parts of aluminum oxide and 20-70 parts of potassium hydroxide and is capable of purifying nitrous oxide by efficiently absorbing nitrogen dioxide in the nitrous oxide. The manufacturing method of the nitrogen dioxide absorbing device includes the steps of 1) adding deionized water in a hydrothermal kettle; 2) adding calcium salt, aluminum salt and sylvite in the hydrothermal kettle; 3) preparing a modifying agent into a saline solution, and adding the saline solution in the hydrothermal kettle; 4) adding a blank filler layer into the hydrothermal kettle for hydrothermal treatment; 5) taking out the filler layer to obtain an adsorbent filler layer; and 6) mounting the adsorbent filler layer in a filtering passageway of the nitrogen dioxide absorbing device. The manufacturing method has the advantages that the nano-size nitrogen dioxide adsorbent evenly attaches to the filler layer, and accordingly the adsorbent filler layer is high in nitrogen dioxide absorbing efficiency.

Description

technical field [0001] The invention relates to a nitrogen dioxide adsorbent, a nitrogen dioxide adsorption device and a manufacturing method thereof, belonging to the technical field of gas filtration and purification. Background technique [0002] In the laughing gas application market in mainland China, the largest customer group is the LCD panel industry, which needs 5N high-purity laughing gas. At present, mainstream LCD panel factories are researching higher-level display technologies, and the two major technologies of LTPS and Oxide have begun mass production in foreign mainstream factories. At present, China is still in the stage of research and development or trial production. These two technologies, Both require the use of high-purity laughing gas in large quantities, but the original LCD panel technology hardly uses it, so it promotes the explosion of laughing gas applications. [0003] Applications outside mainland China are mainly concentrated in the Asia-Pacif...

AI Technical Summary

Problems solved by technology

At present, mainstream LCD panel factories are researching higher-level display technologies, and the two major technologies of LTPS and Oxide have begun mass production in foreign mainstream factories. At present, China is still in the stage of research and development or trial production. These two technologies, Both require a large amount of high-purity laughing gas, but the original LCD panel technology hardly uses it, so it promotes the explosion of laughing gas applications

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