Multi-baffle counterflow photo-catalytic reaction device

Abstract

The invention discloses a multi-baffle counterflow photo-catalytic reaction device. A light source is fixedly arranged on the central position of a cylindrical tapered reactor; a light source outer isolating sleeve is matched with the light source; a fixed tapered baffle on the isolating sleeve is distributed on the light source outer isolating sleeve; a tapered baffle of a fixed tower wall is distributed on the cylindrical tapered reaction tower; a distributing plate is fixedly arranged on the bent position of the cylindrical tapered reaction tower; a reaction liquid inlet is connected with the bottom of the cylindrical tapered reaction tower; a reaction liquid outlet is connected with the top of the cylindrical tapered reaction tower; the reaction liquid inlet is connected with the upper part of a catalyst settling tank; a pump a is used for conveying a reaction liquid; the reaction liquid outlet and the catalyst turbid liquid outlet enter the catalyst settling tank; the bottom of the catalyst settling tank is matched with a catalyst turbid liquid storage slot; a blade stirrer is fixedly arranged on the center of the catalyst turbid liquid storage slot; the catalyst turbid liquid inlet is connected with the bottom of the catalyst turbid liquid storage slot; and a pump b is used for conveying the catalyst turbid liquid.

Description

technical field [0001] The invention relates to a multi-baffle counterflow photocatalytic reaction device, in particular to a static distribution fluidized photocatalytic reaction device. Background technique [0002] Since Japanese scientist Akira Fujishima discovered that titanium oxide single crystals can decompose water under light conditions to produce hydrogen and oxygen in the 1970s, photocatalytic technology has become the focus of research by many researchers. The principle of photocatalytic technology is based on TiO 2 , ZnO, ZnS, CdS, PbS, WO 3 Such semiconductor materials as photocatalysts, through the excitation of ultraviolet light source or near ultraviolet light source, make positively charged holes on the surface of semiconductor photocatalyst particles, thus triggering a series of redox reactions. [0003] Photocatalytic technology has important applications in various countries and fields in the world: photocatalyst preparation research, photocatalyst re...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many liquid-solid phase photocatalytic reactors that apply fluidization process in photocatalytic reaction equipment, but the photocatalytic reactors designed by them all use the convective principle of solid-liquid phase in fluidization for photocatalysis. It cannot fully mix the solid-liquid two phases, such as patent No. 201510132687.9, which is named "A Photocatalytic Water Splitting Hydrogen Production Device", which uses traditional impeller stirring, which not only cannot fully stir, but also wastes energy

Patent No. 200420054774.4, titled "Fluidized Bed Photocatalytic Water Oxidation Reactor", which applies the traditional fluidization principle, and at the same time passes the gas-liquid-solid three-phase into the reaction. Although this is in line with the fluidization principle, it is for The contact area between the reaction solution and the catalyst does not increase much

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