Low-temperature SCR flue gas denitrification catalyst loaded with manganese oxides on lotus leaf source biochar and preparation method and application thereof
A denitration catalyst, manganese oxide technology, applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc. Reduce and other problems, achieve good low-temperature SCR activity and stability, improve catalytic activity, and achieve the effects of high social significance
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Embodiment 1
[0034] (1) Pretreatment of lotus leaves:
[0035] Using lotus leaves as raw materials, drying the lotus leaves and pulverizing them with a pulverizer, weighing a certain amount of pulverized lotus leaves, and using nitric acid solution to impregnate the biomass raw materials, the ratio of acid to raw material mass during the impregnation process is controlled to be 1.5 : 1 and then mix with 50mL of deionized water, stir evenly for 2h, and then soak for 14h;
[0036] (2) Preparation of lotus leaf biochar:
[0037] The impregnated and filtered powders were dried at 105 °C for 24 h, and then placed in a tubular resistance furnace under 100 mL / min N 2 Under the protection, the heating rate was 5 °C / min to 800 °C, and the constant temperature was activated for 2 h; after the activation, N continued to be fed. 2 Until the furnace tube reaches room temperature, the primary product of activated carbon is obtained; then, use boiled deionized water to wash until neutral, and dry the w...
Embodiment 2
[0041] (1) Pretreatment of lotus leaves:
[0042] Using lotus leaves as raw materials, drying the lotus leaves and pulverizing them with a pulverizer, weighing a certain amount of pulverized lotus leaves, and using nitric acid solution to impregnate the biomass raw materials, the ratio of acid to raw material mass during the impregnation process is controlled to be 1.5 : 1 and then mix with 50mL of deionized water, stir evenly for 2h, and then soak for 14h;
[0043] (2) Preparation of lotus leaf biochar:
[0044] The impregnated and filtered powders were dried at 105 °C for 24 h, and then placed in a tubular resistance furnace under 100 mL / min N 2 Under the protection, the heating rate was 5 °C / min to 800 °C, and the constant temperature was activated for 2 h; after the activation, N continued to be fed. 2 Until the furnace tube reaches room temperature, the primary product of activated carbon is obtained; then, use boiled deionized water to wash until neutral, and dry the w...
Embodiment 3
[0048] (1) Pretreatment of lotus leaves:
[0049] Using lotus leaves as raw materials, drying the lotus leaves and pulverizing them with a pulverizer, weighing a certain amount of pulverized lotus leaves, and using nitric acid solution to impregnate the biomass raw materials, the ratio of acid to raw material mass during the impregnation process is controlled to be 1.5 : 1 and then mix with 50mL of deionized water, stir evenly for 2h, and then soak for 14h;
[0050] (2) Preparation of lotus leaf biochar:
[0051] The impregnated and filtered powders were dried at 105 °C for 24 h, and then placed in a tubular resistance furnace under 100 mL / min N 2 Under the protection, the heating rate was 5 °C / min to 800 °C, and the constant temperature was activated for 2 h; after the activation, N continued to be fed. 2 Until the furnace tube reaches room temperature, the primary product of activated carbon is obtained; then, use boiled deionized water to wash until neutral, and dry the w...
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