Catalytic distillation assembly and catalytic distillation method using the same

Abstract

The invention relates to a catalyzing distillation component and a method. The component includes catalyst particles, silk network container and regulated fillers, its character lies in: the catalyst particles and other inertial particles are blended together and filled into the container, and the mentioned silk network containers are arranged in the regulated fillers one by one. The invention favors the transition of media to liquid phase in the gas phase reaction. It can make the reacting bed with large gap rate, and the catalyst is distributed in the whole reaction segment evenly.

Description

technical field [0001] The present invention relates to a kind of equipment and method of chemical engineering and catalytic reaction engineering, in particular to a new component of catalytic distillation tower and its use in liquid-solid two-phase or gas-liquid-solid three-phase catalytic distillation reaction catalytic distillation method. Background technique [0002] In the fields of chemical industry, petrochemical industry, fine chemical industry, metallurgy and environmental engineering, there are many liquid-solid two-phase or gas-liquid-solid three-phase systems that require both catalytic reactions and distillation operations for product refinement. The liquid-solid two-phase or gas-liquid-solid three-phase catalytic reaction system is particularly suitable for the catalytic distillation method. [0003] Catalytic distillation technology is a chemical engineering and catalytic reaction engineering technology developed in recent years. It combines catalytic reacti...

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Problems solved by technology

Its shortcomings and shortcomings are that the porosity of the catalyst layer is small and the resistance is large, which becomes a large bottle diameter for increasing the load in the catalytic distillation process, and the second is that the wear between the catalysts is serious

The disadvantage of this component is: the catalyst is solid, so the particle size should not be too large, otherwise the catalyst cannot be fully utilized, but the catalyst particle size is too small and it is easy to be stratified with the filler, which impairs the synergistic function of the component to perform its catalytic reaction-distillation separation , In addition, this component is also prone to channeling in the bed, which affects its mass transfer and reaction effects

But this structure has the following disadvantages: the one, because the catalyst should be made into the central channel hole, it is troublesome to make, especially for the catalyst of small particles; the second is that the fixing of the formed connector in the passage of the packing is also very difficult; three The central channel hole will reduce the strength of the catalyst particles. The fourth is that the catalyst is easy to be worn and broken during use, and it is scattered in the space of the gas-liquid structured packing of the structured packing to accommodate the wire mesh container, making the bed porosity smaller and the tower pressure lower. drop increase

However, this kind of component has higher requirements on the strength of the catalyst, and higher requirements on the production technology of the catalyst and packing, the bed porosity is small, the tower pressure drop is large, the gas-liquid flux is small, and the catalyst and packing Easy to stratify, resulting in large local resistance and affecting the flux of gas and liquid

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