Preparation method of catalyst for catalyzing ozonization and decomposition volatile organic compounds (VOCs) at normal temperature
A volatile organic compound and catalyst technology, which is applied in the field of preparation of porous nano-rare earth catalytic ozonation and decomposition catalysts, can solve the problems of poor structural stability, limited application range and high energy consumption, and achieves low cost, safe and simple equipment and operation, The effect of low energy consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0026] The preparation method of the catalyst that catalyzes the ozonation decomposition of volatile organic matter under the normal temperature that the present invention proposes, it comprises the following steps:
[0027] (1) First, the nano-rare earth oxide coating as an auxiliary agent is loaded on the catalyst carrier, and then the active component nano-perovskite as a catalyst is coated on the carrier of the rare earth oxide, and finally the loading auxiliary agent and active The catalyst carrier of the component is calcined to form a large number of micropores on the surface and inside of the catalyst carrier to obtain the target catalyst with holes;
[0028] (2) fix the target catalyst made on the catalytic bed of the catalytic oxidation tower 2, start the ozone generator 4, then pass through the pretreatment in the catalytic oxidation tower, remove contained acidic, alkaline gas and other dust And particulate volatile organic compound waste gas VOCs, no additional he...
Embodiment 1
[0042] (1) prepare target catalyst, specific process is as follows:
[0043] (a) Use the activated spherical nano-attapulgite as the catalyst carrier, impregnate the catalyst carrier in the nitrate solution adding nano-scale cerium, then dry and roast, cover the nano-rare earth oxide additive on the surface of the catalyst carrier, and the drying temperature is 100 ℃, the calcination temperature is 500℃ and lasts for 0.5h;
[0044] (b) The catalyst carrier whose surface has been covered with nano-rare earth oxide promoter is added by MnCl 3 solution and LaCl 3 The mixed halogen salt solution that solution is mixed into, stirs it to mix evenly, and the mol ratio of the manganese ion and the lanthanum ion in the described mixed halogen salt solution is 1:1;
[0045] (c) Then add sodium hydroxide solution to the mixed halogen salt solution, adjust the pH value of the solution to 7, let stand at room temperature for 6 hours, filter and wash until the washing liquid is tested to ...
Embodiment 2
[0056] (1) prepare target catalyst, specific process is as follows:
[0057] (a) Use the activated spherical nano-attapulgite as the catalyst carrier, impregnate the catalyst carrier in the nitrate solution adding nano-scale praseodymium, then dry and roast, cover the nano-rare earth oxide additive on the surface of the catalyst carrier, and the drying temperature is 200 ℃, the calcination temperature is 350℃ and lasts for 2h;
[0058] (b) The catalyst support whose surface has been covered with nano-rare earth oxide promoter is added by CoCl 3 solution and LaCl 3 The mixed halogen salt solution that solution is mixed into, stirs it to mix evenly, and the molar ratio of the cobalt ion and the lanthanum ion in the described mixed halogen salt solution is 1:1;
[0059] (c) Then add sodium hydroxide solution to the mixed halogen salt solution, adjust the pH value of the solution to 7, let stand at room temperature for 8 hours, filter and wash until the washing liquid is tested ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com