Simulation moving bed reactor and using method thereof

Abstract

One to 30 raw material inlets are arranged on the side wall of a reactor body (17) of a simulated moving bed reactor. The top part of the reactor body (17) is provided with one raw material inlet (2); the bottom part of the reactor body (17) is provided with a material inlet (18). Two to thirty one reaction product outlets are arranged on the side wall of the reactor body (17); the number of the total raw material inlets of the reactor body (17) is equal to that of the reaction product outlets on the side wall of the reactor body (17); the position of the first raw material inlet (5) on the side wall of the reactor body(17) is higher than the position of the first reaction product outlet (8) on the side wall of the reactor body (17); the second material inlet (6) on the side wall of the reactor body(17) is higher than the position of the second reaction product outlet (9) on the side wall of the reactor body (17), and so on. Through switching the valves of the inlets and the outlets, the invention realizes the substantial moving of a catalyst bed and has stable and reliable operation; the service life of the catalyst is effectively prolonged under the situation of not changing theself performance of the catalyst.

Description

technical field [0001] The invention belongs to a reactor used in chemical process and its application method, in particular to a simulated moving bed reactor and its application method. Background of the invention [0002] Most chemical processes involve catalytic reactions. Depending on the life of the catalyst used, the reactor can be in the form of a fixed bed, a moving bed or a fluidized bed. Generally speaking, fixed-bed reactors are often used when the catalyst life is long, such as the methanol synthesis process and the ammonia synthesis process. Complicated process operation, catalyst replacement is infrequent. For the catalyst life of several days or tens of days, moving bed reactors can be used in industry, such as gasoline aromatization modification reaction, ethylene and butene deproportionation to propylene process, the life of the molecular sieve catalyst used is average For tens of days, when a fixed bed reactor is used, the catalyst regeneration is frequen...

AI Technical Summary

Problems solved by technology

[0007] The common problem of the moving bed reactors provided by the above patents is that the catalyst particles need to physically move mechanically in the equipment, resulting in severe wear of the catalyst particles, so the requirements for the mechanical strength of the catalyst are very strict

However, the technology provided by this patent requires the arrangement of multiple fixed-bed reactors, making the device huge and increasing the investment

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