Method for preparing microsphere FCC (fluid catalytic cracking) catalyst
A catalyst and catalyst slurry technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of easy catalyst wear, increased agent consumption, poor catalyst sphericity, etc., and achieves good atomization effect. Improve the atomization effect and the effect of good sphericity
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[0040] According to a preferred embodiment of the present invention, the diameter of the nozzle inlet is 1-8mm, the ratio of the length to the diameter of the nozzle inlet is 0.5-5.0; the cavity diameter of the nozzle body is 10-40mm; the diameter of the nozzle hole The nozzle inlet diameter is greater than or equal to the diameter of the nozzle hole is 2-10mm, and the height of the nozzle hole is 1-8mm; the flow guide includes a connected cylinder and a cone, and the nozzle body includes a connected cylinder and a cone The cavity includes a cylindrical cavity and a conical cavity connected, and the cone angle of the cone of the nozzle body and the cone angle of the cone of the flow guide are equal to the cone angle of the conical cavity.
[0041] The height of the cylindrical section of the nozzle body is 1.5-15mm, and the height of the cone section of the nozzle body is 3-15mm; the diameter of the cylindrical section of the flow guide is larger than the diameter of the nozzle ho...
Example Embodiment
[0063] Example 1
[0064] Such as figure 1 As shown, the 1# nozzle includes: a protective cover with a horn opening and a cavity adapted to the size of the nozzle body (such as figure 1 As shown), the horn opening is connected to the nozzle hole (the central axis of the horn opening coincides with the central axis of the nozzle hole, and the height of the horn opening is 1 / 5 of the cavity height), and the angle between the bus bar of the horn opening and the horizontal line is 45 °, the maximum diameter of the horn opening is 5 times the diameter of the nozzle hole, and the minimum diameter is 2 times the diameter of the nozzle hole; a nozzle body with a cavity, the nozzle body including a connected cylinder and a cone, the cavity Including a connected cylindrical cavity and a conical cavity, the nozzle body is provided with 2 uniformly distributed nozzle inlets (the diameter of the nozzle inlet is 1.8mm, the length of the nozzle inlet is 3.0mm) and one nozzle hole (the diameter o...
Example Embodiment
[0068] Example 2
[0069] Such as figure 1 As shown, the 2# nozzle includes: a protective cover with a horn opening and a cavity adapted to the size of the nozzle body (such as figure 1 As shown), the horn opening is connected with the nozzle hole (the central axis of the horn opening coincides with the central axis of the nozzle hole, and the height of the horn opening is 1 / 2 of the cavity height), and the angle between the bus bar of the horn opening and the horizontal line is 60 °, the maximum diameter of the horn opening is 8 times the diameter of the nozzle hole, and the minimum diameter is 1 time the diameter of the nozzle hole; a nozzle body with a cavity, the nozzle body includes a connected cylinder and a cone, the cavity Including a connected cylindrical cavity and a conical cavity, the nozzle body is provided with 6 evenly distributed nozzle inlets (the diameter of the nozzle inlet is 2.8mm, the length of the nozzle inlet is 3.5mm) and one nozzle (the diameter of the no...
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