MnOx/ZrO2-TiO2 low temperature selective catalytic reduction NOx catalyst possessing anti SO2 performance and its preparation technology
A catalyst and selective technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve problems such as catalyst poisoning, reduce operating temperature, and reduce deposition , the effect of high catalytic efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0020] Example 1:
[0021] Using sol-gel method, using n-butyl titanate, ethanol, water, Mn(NO 3 ) 2 , ZrOCl 2 , Acetic acid is the raw material, the volume ratio of each component is as follows, n-butyl titanate: ethanol: water: acetic acid = 1: 1.5: 0.5: 0.5, Mn (NO 3 ) 2 The added amount is Mn: Ti = 0.4, ZrOCl 2 The added amount is: Zr:Ti=1, mixing, after the sol is converted into gel, drying, grinding, and calcining at 200-600°C to obtain a catalyst.
[0022] Application treatment NO: NH 3 = 1, O 2 Concentration = 3%, GHSV (gas space velocity per hour) = 30000h -1 SCR method for flue gas denitrification, when the reaction temperature is 120℃, the catalytic efficiency is about 90%, and 150ppm of S0 is added. 2 Afterwards, the catalytic efficiency was 75%.
Example Embodiment
[0023] Example 2:
[0024] Using the sol-gel method, using titanium tetraethoxide, ethanol, water, Mn(NO 3 ) 2 , ZrCl 4 , Nitric acid as the raw material, the volume ratio of each component is as follows, tetraethoxy titanium: ethanol: water: nitric acid = 1: 1.65: 0.05: 0.07, Mn: Ti = 0.4, ZrCl 4 The added amount is: Zr:Ti=1, mixing, after the sol is converted into gel, drying, grinding, and calcining at 200-600°C to obtain a catalyst.
[0025] Application treatment NO: NH 3 = 1, O 2 Concentration = 3%, GHSV (gas space velocity per hour) = 30000h -1 SCR method for flue gas denitration, when the reaction temperature is 150℃, the catalytic efficiency is about 90%, and 150ppm of SO is added 2 After that, the catalytic efficiency was 72%.
Example Embodiment
[0026] Example 3:
[0027] Using sol-gel method, using n-propyl titanate, propanol, water, Mn(NO 3 ) 2 , Zr(NO 3 ) 4 , Nitric acid as the raw material, the volume ratio of n-propyl titanate: propanol: water: nitric acid = 1: 1.85: 0.06: 0.02, Mn (NO 3 ) 2 The added amount is: Mn:Ti=0.4, Zr(NO 3 ) 4 The added amount is: Zr:Ti=0.5, mixing, after the sol is converted into gel, drying, grinding, and calcining at 200-600°C to obtain a catalyst.
[0028] Application treatment NO: NH 3 = 1, O 2 Concentration = 3%, GHSV (gas space velocity per hour) = 30000h -1 SCR method for flue gas denitration, when the reaction temperature is 120℃, the catalytic efficiency is about 80%, and 150ppm of SO is added 2 After that, the catalytic efficiency was 65%.
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap