Effective, environment-friendly and high-strength nest type support protecting agent and preparation method thereof

Abstract

The invention discloses an effective, environment-friendly and high-strength nest type support protecting agent. The agent comprises a main body (2), wherein the two ends of the main body are of a shape of a flat circular body with an externally convex curved surface; honeycomb holes (3) distributed in a mesh structure are formed in the main body; reinforced ribs (4) are arranged among the honeycomb holes at intervals; and the main body consists of the following components in percentage by weight: a composition prepared from 70 to 90 percent of environment-friendly fine silicon carbide powder and 10 to 30 percent of organic clay, 5 to 10 percent of hydroxymethyl cellulose, 5 to 10 percent of Chinese wood oil, 5 to 10 percent of silica sol and 4 to 8 percent of magnesium stearate. Mine resources can be saved; environmental protection is beneficial; the agent has high hardness, compressive resistance, acid and alkali resistance, corrosion resistance, thermal erosion resistance, heat conductivity and heat stability; support protecting ability can be greatly improved; the utilization period of a catalyst is prolonged; the activity of the catalyst can be ensured; the reaction speed is increased; the production cost is reduced; and the working efficiency of a reactor is improved.

Description

technical field [0001] The invention relates to a high-efficiency, environment-friendly and high-strength nest-type support and protection agent used for supporting, covering and protecting catalysts in petrochemical, coal chemical and other industries. Background technique [0002] Chemical catalyst is an important product widely used in various chemical industries, especially in petrochemical, coal chemical, fine chemical and fertilizer, smelting, light industry, medicine, environmental protection and other industries. In order to protect the precious catalyst, make the catalyst not easy to be crushed and damaged, prolong the service life of the catalyst, speed up the catalytic reaction speed, reduce the production cost and improve the production efficiency, all kinds of spherical, ring and column made of oxides are now used. Products with different shapes such as wheel type, wheel type, hole column type, open cell type, foam type and honeycomb type, one is used as the bot...

AI Technical Summary

Problems solved by technology

At present, there are many types of products used as propping and protecting agents, forming proppant with supporting effect, protective agent with protective effect and distribution agent with shunting effect, and their roles in different positions in the tower are also different, collectively referred to as propping Protective agents, such as ceramic balls, open-hole ceramic balls, small rings, hole columns, gears, especially honeycomb ceramics, which are gradually increasing in use, have their own strengths and weaknesses, but no matter what kind , due to the limitations of material selection, shape structure and other manufacturing processes, there are some common shortcomings: First, the compressive strength, wear resistance and erosion (shock) ability of the existing support protection agent is not enough High, the specific surface area is not enough, and the filtering performance of the medium to the medium, resulting in uneven distribution of gas and liquid; second, the existing support and protection agent has low thermal conductivity, insufficient specific surface area and poor thermal stability

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