Internal component, fluid bed reactor and application method

Abstract

The invention provides an internal component, a fluid bed reactor containing the internal component and an application method. The fluid bed reactor is divided into at least two reaction spaces, connected in series, from top to bottom by a baffle in the internal component, and each pore channel in the baffle is communicated with two reaction spaces adjacent to the internal component. When bubbles entrained with particles in the first reaction space adjacent to the internal component enter the pore channel of the component, the bubbles are broken and crushed by the pore channel, gas with crushed bubbles uniformly enters a second reaction space adjacent to the internal component, and most of catalyst particles carried by the bubbles are settled back into the first reaction space. Because the internal component can effectively crush the bubbles during operation, the contact effect between gas and solid phases is enhanced. Meanwhile, the gas in the first reaction space directly enters the second reaction space, and the catalyst particles in the first reaction space are effectively prevented from entering the second reaction space so as to realize gas-solid-phase separation, so that gas-solid backmixing is effectively inhibited.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to an internal component, a fluidized bed reactor and an application method. Background technique [0002] The fluidized bed is a state of fluid-solid contact, that is, a large number of solid particles are suspended in the moving fluid, so that the solid particles have some apparent characteristics of the fluid. Due to the good heat and mass transfer properties of fluidized bed, it has been widely used in industry. However, due to the existence of air bubbles, the solid particles and air bubbles in the fluidized bed reactor are violently stirred and mixed, resulting in a longer residence time of the gas phase and solid phase, and it is not easy to establish a concentration and temperature gradient. At the same time, air bubbles will cause serious back-mixing of solid particles, reducing the yield of the target product. [0003] In order to break up the bubbles and supp...

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Problems solved by technology

However, the internal component is also too complex, which limits its industrial application, and cannot effectively suppress the gas-solid back-mixing.

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