A device and method for measuring the abrasion strength of spherical catalyst particles

Abstract

A device for measuring the abrasion strength of spherical catalyst particles. Both sides of the collision generator are provided with a feeding pipe and a riser pipe. The feeding pipe is connected with the collision generator. The bottom of the pipe is curved and connected with the riser pipe. There is a third sieve plate outside the curved part of the bottom of the downcomer, and a filter screen is set under the third sieve plate. The material entering the feeding pipe enters the downcomer from the bottom of the collision generator. , the high-temperature gas is introduced from the lower part of the riser, and the material falling at the end of the descending pipe rises along the riser under the action of the gas. The upper end of the riser is provided with a curved first sieve plate and a second sieve plate, and the second sieve plate is located outside the riser. , the first sieve plate is located inside the riser and communicates with the collision generator, and the quartz rods are horizontally staggered in the collision generator; the method of the present invention can simulate the actual working conditions of the actual industrial production process, the whole process is visualized, and has strong practicability. The measurement results are more convincing.

Description

technical field [0001] The invention belongs to the technical field of catalyst performance evaluation, and in particular relates to a device and method for measuring the abrasion strength of spherical catalyst particles. Background technique [0002] The mechanical strength of the catalyst has a great influence on the use of the catalyst, especially in fixed bed, moving bed and fluidized bed reactors, the strength of the catalyst is required to be high, and the catalyst must have good catalytic activity and relatively high Excellent mechanical strength. The high strength of the catalyst is mainly manifested in two aspects of pressure resistance and wear resistance. In the reactor, it can withstand the erosion of gas or liquid, and can withstand different forms of collision and friction. If the strength is poor, the catalyst bed may collapse. The catalyst The porosity of the bed layer decreases, the resistance increases, and the broken catalyst powder or small particles may...

AI Technical Summary

Problems solved by technology

The determination of crushing strength is relatively simple, and there are many mature equipments. Some catalyst particles are pressure-resistant but not wear-resistant, while some catalysts are wear-resistant but not pressure-resistant.

Images