Steam rising type radial-flow reactor

Abstract

The invention provides a steam rising type radial-flow reactor, and relates to the field of petrochemical and coal chemical reactors. The steam rising type radial-flow reactor comprises a reactor shell, a heat exchange tube bundle, a catalyst bed, a flow diversion barrel, a flow confluence barrel, a flow confluence pipe, a reaction material inlet, a water vapor outlet, a reaction material outlet, a cooling water inlet, a catalyst discharge opening and a heat insulation reaction section; the flow diversion barrel, the flow confluence barrel and the flow confluence pipe are sequentially sleeved and communicated; the catalyst bed is arranged in a gap between the flow diversion barrel and the flow confluence barrel; the heat exchange tube bundle passes through the catalyst bed; the bottom of the flow confluence pipe is communicated with the reaction material outlet; the heat insulation reaction section is communicated with the reaction material inlet; a catalyst is arranged in the heat insulation reaction section. According to the steam rising type radial-flow reactor provided by the invention, an effect that reaction gas radially passes through the catalyst bed is achieved; a flow area is large; a pressure drop is low, and temperature distribution is uniform; the local high temperature is avoided; the carbon deposit or inactivation risk of the catalyst is effectively reduced; steam is formed as a byproduct; economic benefits are good.

Description

technical field [0001] The invention relates to the field of petrochemical and coal chemical reactors, in particular to a steam ascending radial flow reactor. Background technique [0002] In recent years, the fields of methanol synthesis, carbon monoxide shift, synthesis gas to methane, ammonia synthesis, methanol to olefins, methanol to aromatics, methanol to gasoline and other fields have gradually attracted attention, among which the research and improvement of catalytic bed reactors have always been the focus of this field. hotspot. For strong exothermic reactions in fixed beds, it is very important to effectively remove excess heat during the reaction process, maintain a stable reaction temperature, avoid carbon deposition or deactivation of the catalyst, and ensure the selectivity and yield of the reaction. [0003] According to the flow direction of the reaction materials in the reactor, the fixed bed catalytic reactor can be divided into axial flow reactor and radi...

AI Technical Summary

Problems solved by technology

However, for methanol synthesis reactors, shift reactors, etc., conventional adiabatic bed radial reactors still have the problems of large heat release, high reactor temperature, difficult control, and short service life of catalysts, which increase production costs.

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