Gas-liquid-solid three-phase reaction bypass monitoring device and application of gas-liquid-solid three-phase reaction bypass monitoring device to storing carbon dioxide mineral

Abstract

The invention relates to a gas-liquid-solid three-phase reaction bypass monitoring device which comprises a transverse cylindrical monitoring cavity, an eccentric reducer, a tuning fork density gaugeand a pH (potential of hydrogen) meter. A density gauge placing pipe is arranged on the upper side of the monitoring cavity in the vertical direction, the tuning fork density gauge is inserted in thedensity gauge placing pipe, a measurement end of the density gauge extends into the monitoring cavity, a gas-phase branch pipe is arranged on a side wall of the upper side of the density gauge placingpipe, the other end of the gas-phase branch pipe is communicated with a three-phase reactor, a discharge pipe is arranged on the lower side of the monitoring cavity in the vertical direction, and thebottom of the discharge pipe is communicated with the three-phase reactor; a side wall of the monitoring cavity is communicated with a large-end section of the eccentric reducer, and a small-end section of the eccentric reducer is communicated with the three-phase reactor; a pH meter placing pipe is arranged on the upper side of the monitoring cavity, and the pH meter is inserted in the pH meterplacing pipe. The gas-liquid-solid three-phase reaction bypass monitoring device has the advantages that solid-to-liquid ratio values and pH values of reaction systems can be accurately monitored by the gas-liquid-solid three-phase reaction bypass monitoring device, samples can be taken via a sample taking opening, components can be analyzed, contaminants further can be removed for the tuning forkdensity gauge and the pH meter, the tuning fork density gauge and the pH meter further can be cleaned, and accordingly the safety and the accuracy of processes can be enhanced.

Description

technical field [0001] The invention relates to a bypass monitoring device for gas-liquid-solid three-phase reaction and its application in carbon dioxide mineral sequestration, which belongs to the technical field of chemical industry. Background technique [0002] In the chemical industry, many reactions involve a gas-liquid-solid three-phase reaction process. In these reaction systems, it is usually necessary to accurately analyze the solid-liquid ratio and the composition of the aqueous solution to judge the reaction process. For example, in order to keep up with the world trend and support the national low-carbon emission reduction strategy, Zhao Liang et al. developed a method of sequestering carbon dioxide in industrial flue gas (such as: cement plant flue gas, thermal power plant flue gas, etc.) with magnesium chloride, and used to prepare A method for producing ammonium chloride in parallel with light magnesium carbonate. In the method, liquid ammonia is used to ad...

AI Technical Summary

Problems solved by technology

In order to avoid the influence of air bubbles on the density measurement, the demister with mesh is usually designed to protect the density meter tuning fork. However, in the reaction system with solid formation, the solid material will block the mesh of the demister, resulting in monitoring errors

In addition, the density meter and pH surface will also foul, causing measurement errors

There is no cleaning solution for the tuning fork density meter, but the common cleaning solution for the pH meter is the retractable sheath. When cleaning, the pH is retracted into the sheath for cleaning. The structure of the mechanism is complicated and the reliability is poor.

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