Etherification catalytic distillation module

Abstract

The application provides an etherification catalytic distillation module formed by staggering and arranging a catalyst layer and a stainless steel corrugated plate group; the catalyst layer comprisescatalyst particles, packing sheets and a stainless steel mesh, wherein the packing sheets are at least two parallel stainless steel corrugated plates, a gap space of the stainless steel corrugated plates is filled with the catalyst particles, and then, the catalyst particles are wrapped by the stainless steel mesh; and the stainless steel corrugated plates are provided with a plurality of diversion windows at wave peaks and wave troughs. By adopting the technical scheme, the liquid-phase surface updating and the radial distribution uniformity are effectively promoted, the gas-liquid mass transfer is further improved, and the etherification catalytic distillation module has the technical advantages of easily controlled reaction section bed layer temperature, temperature runaway avoidance, higher operation flexibility, wide operation load, convenience in assembly and disassembly, stable catalyst effect, little catalyst wear, no catalyst leakage and simplicity in industrial application.

Description

technical field [0001] This patent application relates to a chemical reaction device, in particular to a catalytic rectification packing component for a chemical catalytic rectification reaction. Background technique [0002] Catalytic rectification organically couples catalytic reaction and rectification operation. The catalytic reaction is carried out in the reaction section of the catalytic rectification tower, and rectification separation is carried out at the same time to separate the product from the reactant and push the equilibrium reaction to move to the right, achieving good results. High conversion rate, selectivity and product purity, and achieve the technical purpose of reducing energy consumption. Catalytic distillation technology is widely used in chemical manufacturing fields such as etherification, isomerization, selective hydrogenation, and alkylation. The technical core of catalytic rectification is the modular structure of catalytic rectification, and ma...

AI Technical Summary

Problems solved by technology

However, there are also many technical problems in that the gas-liquid two phases pass through their respective channels in the reaction section, and the mass transfer between the gas-liquid two phases is not easy to occur. When the flow is upward, the liquid flows downward along the surface of the packing sheet to form a liquid film, and most of it flows downward along the surface of the trough. The liquid film at the trough is thicker but the peak is in a naked state, which makes the liquid distribution in the tower uneven; in addition, the liquid at the trough After the membrane is formed, the liquid channel in the tower will remain basically unchanged for a long time, which is not conducive to the mass transfer between gas and liquid and affects the separation effect of the tower

Therefore, this prior art is not suitable for use in a gas-liquid-solid three-phase system in which both gas and liquid are reaction materials

Images