Method for recycling waste FCC catalyst
A catalyst and resource utilization technology, applied in the direction of chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of low added value of products and low price of building ceramsite problems, to achieve the effects of energy saving and environmental protection in the preparation process, realization of resource utilization, and improvement of catalytic activity
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Embodiment 1
[0025] A method for recycling waste FCC catalysts. The method described in this embodiment is:
[0026] (1) With 50-58wt% spent FCC catalyst, 37-45wt% clay and 2-5wt% TiO 2 It is used as a catalyst raw material, mixed, dried at 102-105° C., and ground to a particle size of 0.05-0.1 mm to obtain a catalyst raw material mixture.
[0027] (2) Put the catalyst raw material mixture into a disc granulator, and under the condition of rotation, spray the transition metal salt solution to the catalyst raw material mixture, and the spraying amount of the transition metal salt solution is 100% of the catalyst raw material 10-15 wt% of the mixture, the disc granulator is rotated until the mixture of catalyst raw materials forms spherical catalyst particles with a particle diameter of 3-5 mm.
[0028] (3) drying the spherical catalyst particles at 102-105° C., and then sintering at 1100-1150° C. for 15-22 minutes to prepare an ozone catalyst.
[0029] (4) The ozone catalyst is filled in...
Embodiment 2
[0031] A method for recycling waste FCC catalysts. The method described in this embodiment is:
[0032] (1) With 54-62wt% spent FCC catalyst, 33-41wt% clay and 2-5wt% TiO 2 It is used as a catalyst raw material, mixed, dried at 102-105° C., and ground to a particle size of 0.05-0.1 mm to obtain a catalyst raw material mixture.
[0033] (2) Put the catalyst raw material mixture into a disc granulator, and under the condition of rotation, spray the transition metal salt solution to the catalyst raw material mixture, and the spraying amount of the transition metal salt solution is 100% of the catalyst raw material 10-15 wt% of the mixture, the disc granulator is rotated until the mixture of catalyst raw materials forms spherical catalyst particles with a particle diameter of 3-5 mm.
[0034] (3) drying the spherical catalyst particles at 102-105° C., and then sintering at 1130-1180° C. for 18-24 minutes to prepare an ozone catalyst.
[0035] (4) The ozone catalyst is filled in...
Embodiment 3
[0037] A method for recycling waste FCC catalysts. The method described in this embodiment is:
[0038] (1) With the spent FCC catalyst of 58~66wt%, the clay of 29~37wt% and the TiO of 2~5wt% 2 It is used as a catalyst raw material, mixed, dried at 102-105° C., and ground to a particle size of 0.05-0.1 mm to obtain a catalyst raw material mixture.
[0039](2) Put the catalyst raw material mixture into a disc granulator, and under the condition of rotation, spray the transition metal salt solution to the catalyst raw material mixture, and the spraying amount of the transition metal salt solution is 100% of the catalyst raw material 10-15 wt% of the mixture, the disc granulator is rotated until the mixture of catalyst raw materials forms spherical catalyst particles with a particle diameter of 3-5 mm.
[0040] (3) drying the spherical catalyst particles at 102-105° C., and then sintering at 1150-1200° C. for 21-26 minutes to prepare an ozone catalyst.
[0041] (4) The ozone c...
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