Flat-plate type sulfur-resistant low-temperature SCR denitration catalyst and preparation method thereof
A denitration catalyst, a flat-plate technology, used in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve problems such as loss of activity, low activity, and severe corrosion of pipeline equipment
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0027] (1) Dissolve 434.0g of cerium nitrate in 4400g of deionized water to obtain a clear solution under stirring; another 128.8g of zirconium oxychloride is slowly added to the above cerium nitrate solution; under vigorous stirring, slowly add Ammonia water until the pH value reaches 9, and hydroxide precipitates are obtained and allowed to stand for 24 hours; then the above mixture is filtered, washed, and treated with AgNO 3 The solution was detected to have no precipitation; then placed in an ordinary blast drying oven at 110°C for 12 hours, and in a muffle furnace at 550°C for 3 hours to obtain nano-Ce-ZrO 2 Composite oxide powder, wherein the Ce:Zr molar mass ratio is 1:0.4;
[0028] (2) ① Dissolve 50.0g manganese acetate, 62.5g ferric nitrate and 15.2g ammonium paramolybdate in 40mL deionized water respectively to make its salt solution; The three solutions were added to 200 g of the composite oxide carrier prepared in step (1), ultrasonically treated and allowed to s...
Embodiment 2
[0033] (1) Dissolve 520.8g of cerium nitrate in 6000g of deionized water to obtain a clear solution under stirring; another 193.2g of zirconium oxychloride is slowly added to the cerium nitrate solution; under vigorous stirring, slowly add ammonia water dropwise When the pH value reached 9, the hydroxide precipitate was obtained and allowed to stand for 20 h; then the above mixture was filtered, washed, and treated with AgNO 3 The solution was detected to have no precipitation; then placed in an ordinary blast drying oven at 110°C for 12 hours, and in a muffle furnace at 550°C for 3 hours to obtain nano-Ce-ZrO 2 Composite oxide powder, wherein the Ce:Zr molar mass ratio is 1:0.5;
[0034] (2) ① Dissolve 75.8g manganese acetate, 63.2g ferric nitrate and 30.1g ammonium paramolybdate in 50mL deionized water respectively to make its salt solution; Three kinds of solutions are added to the Ce-ZrO prepared in 240g step (1) 2 In the composite oxide carrier, ultrasonically treat and...
Embodiment 3
[0039] (1) Dissolve 607.6g of cerium nitrate in 8000g of deionized water to obtain a clear solution under stirring; another 360.6g of zirconium oxychloride is slowly added to the cerium nitrate solution; under vigorous stirring, slowly add ammonia water dropwise When the pH value reached 9, hydroxide precipitate was obtained and allowed to stand for 24 h; then the above mixture was filtered, washed, and treated with AgNO 3 The solution was detected to have no precipitation; then it was dried in an ordinary blast drying oven at 105°C for 12h, and roasted in a muffle furnace at 550°C for 3h to obtain nano-Ce-ZrO 2 Composite oxide powder, wherein the Ce:Zr molar mass ratio is 1:0.8;
[0040] (2) ① Dissolve 90.0g manganese acetate, 56.3g ferric nitrate and 22.9g ammonium paramolybdate in 58mL deionized water respectively to make its salt solution; Three kinds of solutions are added to the Ce-ZrO prepared in 300g step (1) 2 In the composite oxide carrier, ultrasonically treat and...
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