CO2-rich gas purification non-precious metal catalyst and its preparation method and application
A technology of gas purification and non-precious metals, which is applied in the field of CO2-rich gas purification of non-precious metal catalysts and its preparation, can solve the problems of high cost, short service life, expensive price, etc., and achieve raw material cost savings, enhanced synergistic effects, and high stability Effect
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Embodiment 1
[0032] Weigh 20.3g of ferric nitrate, 10.1g of cerium nitrate, 0.052g of potassium nitrate and dissolve in 106g of 5% nitric acid aqueous solution to make a mixed solution, add 286.15g of pseudo-boehmite, 8g of safflower powder, and carbonic acid Manganese 7.3g and mixed evenly, the mixed solution was added to the powder, kneaded and extruded to shape, the particle size of the catalyst was 3mm. Dry at 110-120°C for 4h, and bake at 500°C for 4h to obtain FeMnCeO x / Al 2 o 3 -1 Catalyst. After measurement, the percentages of iron, manganese, cerium and aluminum oxide in the catalyst are 2.5%, 2.5%, 2% and 93% in sequence, and the percentage of potassium is 0.01%.
[0033] Weigh 50.6g of iron nitrate, 25.2g of cerium nitrate, 0.148g of sodium nitrate and dissolve in 106g of 5% nitric acid aqueous solution to make a mixed solution, add 153.8g of pseudo-boehmite, 8g of safflower powder, carbonic acid Manganese 116.4g and mixed evenly, the mixed solution was added to the powder,...
Embodiment 2
[0048] Weigh 50.6g of ferric nitrate, 22.7g of cerium nitrate, 7g of zirconium nitrate, 0.1g of potassium nitrate and dissolve in 106g of 5% nitric acid aqueous solution to make a mixed solution, add 246g of pseudoboehmite and scallop powder into the kneading tank 7.5g, 29.1g manganese carbonate and mix evenly, add the mixed solution to the powder, knead and extrude to form, the catalyst particle size is 3mm. Dry at 110~120°C for 4h, and bake at 550°C for 4h to obtain FeMnCeZrO x / Al 2 o 3 catalyst. After measurement, the percentages of iron, manganese, cerium, zirconium and aluminum oxide in the catalyst are 5%, 10%, 4.5%, 0.5%, 80% in sequence, and the percentage of potassium is 0.02%.
[0049] Weigh 50.6g of ferric nitrate, 36.4g of cobalt nitrate, 45.4g of cerium nitrate, 7g of zirconium nitrate, and 0.1g of potassium nitrate dissolved in 106g of 5% nitric acid aqueous solution to make a mixed solution, and add pseudo-boehmite to the kneading tank 246g, 7.5g of squat p...
Embodiment 3
[0062] Weigh 50.6g of ferric nitrate, 22.7g of cerium nitrate, 3.5g of zirconium nitrate, 2.7g of lanthanum nitrate and dissolve in 106g of 5% nitric acid aqueous solution to make a mixed solution, and add 246g of pseudoboehmite and fenugreek to the kneading tank Powder 7.5g, manganese carbonate 29.1g and mix evenly, add mixed solution to the powder, knead and extrude to form, the catalyst particle size is 3mm. Dry at 110-120°C for 8h, and bake at 600°C for 2h to obtain FeMnCeZrLaO x / Al 2 o 3 catalyst. After measurement, the percentage contents of iron, cerium, zirconium, lanthanum and aluminum oxide in the catalyst are 5%, 4.5%, 0.5%, 0.5% and 80% in sequence.
[0063] Weigh 50.6g of ferric nitrate, 36.4g of cobalt nitrate, 45.4g of cerium nitrate, 3.5g of zirconium nitrate, 2.7g of lanthanum nitrate, 0.1g of potassium nitrate and dissolve it in 106g of 5% nitric acid aqueous solution to make a mixed solution, and pour it into the kneading tank Add 246 g of pseudo-boehmi...
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