Metal monolithic structured core-shell structure denitration catalyst and preparation method thereof
A denitration catalyst and core-shell structure technology, applied in the field of nitrogen oxide control and purification in environmental protection, can solve the problems of high treatment cost, cumbersome steps, uneven coating, etc., and achieve excellent sulfur and water resistance and low temperature activity. High, low environmental toxicity effect
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Embodiment 1
[0029] Embodiment one: 1 g aluminum wire mesh is placed in the hydrothermal reactor containing deionized water, 100 o C water heat for 12 h. Washed three times with deionized water, 100 o C drying for 12 h, the aluminum wire mesh structured pseudo-boehmite composite material was obtained. Weigh iron nitrate containing 0.1 g Fe and cerium nitrate containing 0.03 g Ce and dissolve it in 0.8 g methanol, add 0.416 g bis-triethanolamine diisopropyl titanate, and sonicate for 10 minutes. Then, the incipient wetness of pseudo-boehmite structured by aluminum mesh was impregnated in the above mixed solution, and after standing for 2 hours, 0.08 g of deionized water was added dropwise, and stood for 4 hours to make the coupling agent and the pseudo-boehmite on the monolithic carrier Boehmite is fully hydrolyzed. The resulting material 100 o C drying 12 h, 500 oC Calcined for 3 h to prepare Al mesh-structured titanium dioxide-wrapped iron-cerium catalyst.
[0030] To test the catal...
Embodiment 2
[0031] Embodiment two: 1 g aluminum wire mesh is placed in the hydrothermal reaction kettle containing deionized water, 100 o C water heat for 12 h. Washed three times with deionized water, 100 o C drying for 12 h, the aluminum wire mesh structured pseudo-boehmite composite material was obtained. Weigh ferric nitrate containing 0.1 g Fe and 0.03 g Zr zirconium nitrate and dissolve in 0.8 g methanol, add 0.416 g bis-triethanolamine diisopropyl titanate, and sonicate for 10 minutes. Then, the incipient wetness of pseudo-boehmite structured by aluminum mesh was impregnated in the above mixed solution, and after standing for 2 hours, 0.08 g of deionized water was added dropwise, and stood for 4 hours to make the coupling agent and the pseudo-boehmite on the monolithic carrier Boehmite is fully hydrolyzed. The resulting material 100 o C drying 12 h, 500 oC Calcined for 3 h to prepare the Fe-Zr catalyst wrapped in TiO2 with Al mesh structure.
[0032] To test the catalytic act...
Embodiment 3
[0033] Embodiment three: 1 g aluminum wire mesh is placed in the hydrothermal reactor containing deionized water, 100 o C water heat for 12 h. Washed three times with deionized water, 100 o C drying for 12 h, the aluminum wire mesh structured pseudo-boehmite composite material was obtained. Weigh ferric nitrate containing 0.1 g Fe and 0.03 g La lanthanum nitrate and dissolve in 0.8 g methanol, add 0.416 g bis-triethanolamine diisopropyl titanate, and sonicate for 10 minutes. Then, the incipient wetness of pseudo-boehmite structured with aluminum mesh was impregnated in the above mixed solution, and after standing for 2 hours, 0.08 g of deionized water was added dropwise, and stood for 4 hours to make the coupling agent and the pseudo-boehmite on the monolithic carrier Boehmite is fully hydrolyzed. The resulting material 100 o C drying 12 h, 500 oC Calcined for 3 h to prepare aluminum mesh structured titania-wrapped iron lanthanum catalyst.
[0034] To test the catalytic ...
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