Isothermal fixed bed reactor loading catalyst among heat exchange tubes

Abstract

The invention provides an isothermal fixed bed reactor loading a catalyst among heat exchange tubes, and the isothermal fixed bed reactor comprises a pressure-bearingg casing, the plurality of heat exchange tubes installed in the pressure-bearing casing, and the catalyst; gaps among the plurality of heat exchange tubes form a catalyst filling zone, and a gas inlet, the gaps among the plurality of heat exchange tubes and a gas outlet form a gas channel. The isothermal fixed bed reactor loads the catalyst among the plurality of heat exchange tubes, the catalyst loading quantity is large; the heat exchange tubes can quickly remove the reaction heat, the whole bed basically reaches the even temperature effect and is free of excess temperature and occurrence of side reactions, and the isothermal fixed bed reactor enables a reaction gas to axially radially flow in the bed, can maximize the use of the and can use a more active small particle catalyst.

Description

technical field [0001] The present invention relates to an isothermal fixed-bed reactor, in particular to an isothermal fixed-bed reactor in which a catalyst is installed between heat exchange tubes. The isothermal fixed-bed reactor can be an axial radial reactor, a pure axial reactor or a Pure radial reactor. Background technique [0002] With the development of chemical production, in order to adapt to different heat transfer requirements and heat transfer methods, a variety of fixed-bed reactor structures have emerged, among which gaseous reaction materials are used to react through a bed composed of solid catalysts. The gas-solid phase catalytic reactor is the most widely used in chemical production. [0003] Fixed-bed reactors are mainly divided into two categories: adiabatic and heat-exchange based on the reaction principle. [0004] The adiabatic fixed bed reactor has a simple structure and is widely used. However, in actual operation, the adiabatic reactor cannot ...

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Problems solved by technology

For example, CN101254442A discloses a pressurized catalytic method for exothermic reaction, which mainly adopts a centrifugal radial flow reactor from inside to outside. Although the catalyst loading is large, the amount of catalyst that the radial flow reaction gas flows through Not big, if the gas purification is not good, it is more likely to cause catalyst deactivation

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