Catalysis method of Fe-Cu-La composite impregnated CWAO catalyst
A catalyst, impregnation type technology, applied in the direction of heterogeneous catalyst chemical elements, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem that the activity needs to be further improved, and achieves avoiding inhibition, strong stability and high activity. Effect
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Embodiment 1
[0028] A kind of catalytic method of Fe-Cu-La composite impregnated CWAO catalyst, it is characterized in that, the preparation method of described Fe-Cu-La composite impregnated CWAO catalyst is:
[0029] 1) Carrier pretreatment: wash the catalyst carrier with distilled water for several times in turn, drain the water, dry it in an electric blast drying oven at 105°C for a certain period of time, and heat it up to 450°C in a muffle furnace at a certain heating rate. Roasting at ℃ for 2h;
[0030] 2) Catalyst preparation: Cu(NO 3 ) 2 , Fe(NO 3 ) 3 with LaCl 3 The mixed impregnating solution is dynamically impregnated in an air bath oscillator with a solid-to-liquid mass ratio of 2:5 for a certain period of time, drained, and dried for a certain period of time under ventilated conditions at 105°C, and undergoes co-impregnation and drying processes. Place the dried sample in a high-temperature box-type resistance furnace, heat up to a set temperature of 350°C at a heating r...
Embodiment 2
[0032] A kind of catalytic method of Fe-Cu-La composite impregnated CWAO catalyst, it is characterized in that, the preparation method of described Fe-Cu-La composite impregnated CWAO catalyst is:
[0033] 1) Carrier pretreatment: wash the catalyst carrier with distilled water for several times in turn, drain the water, dry it in an electric blast drying oven at 105°C for a certain period of time, and heat it up to 450°C in a muffle furnace at a certain heating rate. Roasting at ℃ for 2h;
[0034] 2) Catalyst preparation: Cu(NO 3 ) 2 , Fe(NO 3 ) 3 with LaCl 3 The mixed impregnating solution is dynamically impregnated in an air bath oscillator with a solid-to-liquid mass ratio of 2:5 for a certain period of time, drained, and dried for a certain period of time under ventilated conditions at 105°C, and undergoes co-impregnation and drying processes. Place the dried sample in a high-temperature box-type resistance furnace, raise the temperature to a set temperature of 450°C ...
Embodiment 3
[0036]A kind of catalytic method of Fe-Cu-La composite impregnated CWAO catalyst, it is characterized in that, the preparation method of described Fe-Cu-La composite impregnated CWAO catalyst is:
[0037] 1) Carrier pretreatment: wash the catalyst carrier with distilled water for several times in turn, drain the water, dry it in an electric blast drying oven at 105°C for a certain period of time, and heat it up to 450°C in a muffle furnace at a certain heating rate. Roasting at ℃ for 2h;
[0038] 2) Catalyst preparation: Cu(NO 3 ) 2 , Fe(NO 3 ) 3 with LaCl 3 The mixed impregnating solution is dynamically impregnated in an air bath oscillator with a solid-to-liquid mass ratio of 2:5 for a certain period of time, drained, and dried for a certain period of time under ventilated conditions at 105°C, and undergoes co-impregnation and drying processes. Place the dried sample in a high-temperature box-type resistance furnace, raise the temperature to a set temperature of 550°C a...
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