Moving bed reactor and use method thereof

Abstract

The invention relates to a moving bed reactor and a use method thereof. The reactor comprises a reactor shell, a catalyst filling area is arranged in the reactor shell, a catalyst feeding port is formed in the upper end of the reactor shell, and a catalyst discharging port is formed in the lower end of the reactor shell; the catalyst filling area comprises a gas-phase central pipe, a plurality of plates arranged outside the gas-phase central pipe in a surrounding manner, a rotatable gap rotary feeding disc arranged at the upper end of the gas-phase central pipe and a rotatable gap rotary discharging disc arranged at the lower end of the gas-phase central pipe, and the plates are arranged in parallel at equal intervals along the axial direction (circumferential direction) of the outer pipe wall of the gas-phase central pipe; and a plate-type channel is formed between every two adjacent plates, and the gap rotary feeding disc and the gap rotary discharging disc are provided with notches consistent with the section shapes of the plate-type channels. The reactor can intermittently and continuously load and unload a catalyst, ensures the loading and unloading uniformity of the catalyst, and effectively avoids the problem of non-uniform axial distribution of airflow.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and in particular relates to a moving bed reactor and a using method thereof. Background technique [0002] The moving bed reactor is a reactor form used to realize fluid-solid phase contact. The solid material gradually moves down in the reactor to the bottom and is discharged by gravity, and the fluid reacts with the solid phase material. The moving bed reactor has the characteristics of both the fixed bed reactor and the fluidized bed reactor, and is especially suitable for reactions where the catalyst deactivation rate is moderate, but cyclic regeneration is still required. The operating performance and catalyst requirements of the moving bed reactor are between the fixed bed and the fluidized bed. Compared with the fixed bed, the moving bed reactor has the characteristics of small pressure drop and low investment; compared with the entrained bed, The moving bed reactor has the advantages o...

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Problems solved by technology

[0005] Finally, the heat transfer performance of the cross-flow moving bed has been criticized. In order to solve this problem, most moving bed reactors adopt the method of multi-stage series and inter-stage heat exchange (CN102875469A) or the method of external heat exchange of the reactor (CN105218304B) For heat removal, the above two methods will lead to low space utilization of the reactor, large equipment investment and complicated operation

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