Catalytic cracking process and device
A catalytic cracking and process technology, applied in catalytic cracking, cracking, petroleum industry and other directions, can solve the problems of complex process and operation, difficult implementation of engineering, and deterioration of product distribution.
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Embodiment 1
[0061] The raw material used in the test was atmospheric residual oil from Daqing, and the catalyst was commercially available CC-20 catalytic cracking industrial equilibrium catalyst with a microreactive activity of 65.
[0062] The short-range, high-efficiency catalytic cracking program is carried out on a small fluidized bed device in the laboratory. The ungenerated catalyst is burnt in a tubular manner and then enters the regenerator with a micro-reaction activity of 65. The stripping medium in the stripping section of the reaction settler is water vapor, and the stripping temperature is 500°C. The operating conditions, product distribution and some product properties of the short-range, high-efficiency catalytic cracking unit in this example are shown in Table 3.
Embodiment 2
[0064] According to Example 1, the difference is the temperature of the regenerated catalyst from the regenerator, the ratio of feedstock to oil in the reaction settler, and the reaction time. The operating conditions, product distribution and some product properties of the short-range, high-efficiency catalytic cracking unit in this example are shown in Table 4.
Embodiment 3
[0066] According to Example 1, the difference is the temperature of the regenerated catalyst from the regenerator, the ratio of feedstock to oil in the reaction settler, and the reaction time. The operating conditions, product distribution and some product properties of the short-range, high-efficiency catalytic cracking unit in this example are shown in Table 5.
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