Low-temperature, sulfur-resistant phosphorus-containing cerium-iron-tin composite denitrification catalyst and preparation method thereof
A denitrification catalyst, ferrocerium technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of catalyst deactivation, low-temperature denitrification efficiency, poor catalytic activity, etc., and achieve simple preparation methods, Excellent low-temperature catalytic activity and reduced production cost
Image
Examples
Embodiment 1
[0023]The phosphorus-containing tin composite denitrification catalyst containing cerium is composed of a phosphate, iron oxide and tin oxide, and the mass ratio of iron oxide and tin oxide is 1: 0.2: 0.03; The nitrogen oxide conversion of the phosphorus-containing iron-containing iron-containing composite denitration catalyst at a temperature condition of 150 ° C to 350 ° C reaches 90% or more.
[0024]The preparation method of the phosphorus-containing tin composite denitrifination catalyst containing the present embodiment includes the steps of:
[0025]Step 1, 6.51 g of six-water nitrate is dissolved in 100 g of deionized water, then mixed into aqueous pyrophosphate aqueous solution, mixed well, to obtain a mixed solution A; the aqueous pyrophosphate solution is dissolved from 0.89 g of pyrophosphate in 100 g of water formulation get;
[0026]Step 2, 6.00 g of urea added to the mixed solution A obtained in the steps of the mixing solution A to all dissolved to give a mixed solution B, an...
Embodiment 2
[0030]The phosphorus-containing tin composite denitrification catalyst containing cerium is composed of a phosphate, iron oxide and tin oxide, and the mass ratio of iron oxide and tin oxide is 1: 0.2: 0.04; The nitrogen oxide conversion of the phosphorus-containing iron-containing iron-containing composite denitration catalyst at a temperature condition of 150 ° C to 350 ° C reaches 90% or more.
[0031]The preparation method of the phosphorus-containing tin composite denitrifination catalyst containing the present embodiment includes the steps of:
[0032]Step 1, 4.34 g of six-water nitrate is dissolved in 100 g of deionized water, then mixed into aqueous pyrophosphate aqueous solution to mix well, resulting in a mixed solution A; the aqueous pyrophosphate solution is dissolved from 0.89 g of pyrophosphate in 100 g of water formulated get;
[0033]Step 2, 6.00 g of urea was added to the mixed solution A obtained in the step one to completely dissolve the mixed solution B, and then the mixed...
Embodiment 3
[0037]The phosphorus iron-containing iron-containing composite denitration catalyst of this embodiment is composed of a phosphate, iron oxide and tin oxide, and the mass ratio of iron oxide and tin oxide is 1: 0.2: 0.05; The nitrogen oxide conversion of the phosphorus-containing iron-containing iron-containing composite denitration catalyst at a temperature condition of 150 ° C to 350 ° C reaches 90% or more.
[0038]The preparation method of the phosphorus-containing tin composite denitrifination catalyst containing the present embodiment includes the steps of:
[0039]Step 1, 4.34 g of six-water nitrate is dissolved in 100 g of deionized water, then mixed into aqueous pyrophosphate aqueous solution to mix well, resulting in a mixed solution A; the aqueous pyrophosphate solution is dissolved from 0.89 g of pyrophosphate in 100 g of water formulated get;
[0040]Step 2, 6.00 g of urea was added to the mixed solution A obtained in the step 1 to completely dissolve the mixed solution B, and th...
PUM
Login to View More Abstract
Description
Claims
Application Information
- IPC
- B01J27/185; B01D53/86; B01D53/56
- CPC
- B01D53/8628; B01J27/1853
- Inventors
- 李飞; 仵静