Bubble column reactor and method for preparing naphthoic acid compound
By setting up a gas distributor and liquid guide with a special structure in the bubble column reactor, the suspension time of the solid catalyst was extended, the problem of solid settling was solved, and the mass transfer efficiency and the preparation efficiency of naphthoic acid compounds were improved.
WO2026123792A1 Publication Date: 2026-06-18PETROCHINA SHANGHAI ADVANCED MATERIALS RESEARCH INSTITUTE CO LTD +1
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- PETROCHINA SHANGHAI ADVANCED MATERIALS RESEARCH INSTITUTE CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
In existing bubble column reactors, solid catalysts sink rapidly under gravity, resulting in short mass transfer time and poor mass transfer effect, which seriously affects the preparation of naphthoic acid compounds.
⚗Method used
By setting up a specially structured gas distributor and liquid guide in the reactor, the gas blown out by the gas distributor drives the liquid flow to prolong the solid suspension time, and the circulation system improves the liquid circulation and enhances the gas-liquid contact effect.
🎯Benefits of technology
It improved mass transfer efficiency, shortened reaction time, and enhanced the preparation efficiency and catalytic oxidation effect of naphthoic acid compounds.
✦ Generated by Eureka AI based on patent content.
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Abstract
The present application relates to the technical field of fine chemical equipment and to a bubble column reactor and method for preparing a naphthoic acid compound. The bubble column reactor comprises: a column body in which a reaction chamber is provided; a gas distributor at least partially arranged in the reaction chamber, wherein the section of the gas distributor that is located inside the reaction chamber is provided with at least one first through hole in communication with the reaction chamber, and the axis of the first through hole forms an acute angle with an outer surface of the gas distributor or a tangent line at the outer surface of the gas distributor, so that a gas blown out of the gas distributor drives a liquid to flow and prolong the suspension time of solids in the liquid; and an air pump system configured to be in communication with the gas distributor and supply the gas. During reaction, a liquid containing a solid catalyst is injected into the reaction chamber, and the liquid is guided by means of second through holes on the gas distributor, thereby increasing the suspension time of the solid catalyst in the liquid, thus enhancing the mass transfer effect.
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