High-sulfur-resistance metal sulfate denitration catalyst and preparation method thereof
A metal sulfate and denitrification catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of reduced catalytic efficiency of catalysts, and achieve suitable promotion and use, high SCR activity, and avoid deposition Effect
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[0028]Example 1:
[0029]A method for preparing a highly resistant metal sulfate denitrify catalyst, using a rotary evaporation impregnation method, including the following steps:
[0030]a. Tighted 0.02 g of copper sulfate, placed in a 100 mL round bottom flask, taking 70 ml of deionized water into the round bottom flask, and the ultrasound is uniform, and the ultrasound is uniform. Metal sulfate solution;
[0031]b. Time of 2 g of silicon is placed in a metal sulfate solution of the round bottom flask, and the mixture is again sonicated to form a uniform suspension; place the round bottom flask on the rotary evaporator, in 40 During the ° C water bath, rotary evaporation is carried out, and the catalyst precursor is obtained;
[0032]c. The obtained catalyst precursor is placed in an oven at 60 ° C, performing drying 12h, and the catalyst precursor after drying is sufficiently ground and over 60 mesh screen, resulting in a catalyst precursor powder;
[0033]d. Place the catalyst precursor powder...
Example Embodiment
[0037]Example 2:
[0038]This example is basically the same as that of Example 1, in particular
[0039]A method for preparing a highly resistant metal sulfate denitrify catalyst, using a rotary evaporation impregnation method, including the following steps:
[0040]0.15 g of copper is placed in a 100 ml round bottom flask, and the amount of 70 ml of ethanol is poured into the round bottom flask, and the round bottom flask is dispersed evenly, and then 2G silicon oxide. In the metal sulfate solution placed in a round bottom flask, it is again ultrasound to form a uniform suspension. The round bottom flask was placed on a rotary evaporator to rotary evaporation during a water bath of 45 ° C to obtain a catalyst precursor.
[0041]The obtained catalyst precursor was placed in a 80 ° C oven drying for 6 h, and the catalyst precursor was sufficiently ground and passed over 60 mesh screen, and the ground catalyst precursor was placed in a tubular furnace and calcining conditions: The starting temper...
Example Embodiment
[0045]Example 3:
[0046]This embodiment is substantially the same as the foregoing embodiment, in particular
[0047]A method for preparing a highly resistant metal sulfate denitrify catalyst, using a rotary evaporation impregnation method, including the following steps:
[0048]Weigh 0.2 g of copper sulfate in a 100 ml round bottom flask, and the amount of 70 ml of isopropyl alcohol is poured into the round bottom flask, and the round bottom flask is placed in ultrasound to make it uniform, and then prove 2g Zirconium oxide is placed in a metal sulfate solution of a round bottom flask, and then ultrasonically forms a uniform suspension. The round bottom flask was placed on a rotary evaporator in a 50 ° C water bath process to rotate and evaporated, and the catalyst precursor was obtained.
[0049]The obtained catalyst precursor was placed in a 60 ° C oven drying for 2 h, and the catalyst precursor was sufficiently ground and passed through 60 mesh screen, and the ground catalyst precursor was...
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