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

A protective agent and environmental protection technology, applied in the direction of catalyst protection, chemical instruments and methods, physical/chemical process catalysts, etc. It is beneficial to environmental protection and ecological balance, excellent regeneration conditions, and good high temperature oxidation resistance.

Active Publication Date: 2012-05-09
PINGXIANG ANFA COKING ENVIRONMENT PROTECTION FILLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1, such as figure 1 and figure 2 As shown, the high-efficiency, environment-friendly and high-strength nest-type support and protection agent includes a body 2, the body is in the shape of a flat cylinder with convex curved surfaces at both ends, and honeycomb holes 3 distributed in a network structure are arranged inside the body 2, and the honeycomb The cross-section of the hole is triangular, it can also be circular or regular hexagonal, the thickness of the hole wall 1 is 0.3-0.5mm, and the reinforcing ribs 4 with a thickness of 0.8-1mm are arranged at intervals between the honeycomb holes, and the reinforcing ribs are six evenly spaced. , the body is composed of 76%wt of green silicon carbide fine powder and 24%wt of organoclay (kaolin-type organoclay), and 6%wt of hydroxymethylcellulose and 9% of the total weight of the composition The tung oil of wt, the silica sol of 6%wt and the magnesium stearate of 8%wt are composed and are prepared by the following...

Embodiment 2

[0051] Embodiment 2, the high-efficiency, environment-friendly, high-strength nest-type support and protection agent includes a body 2, the body is in the shape of a flat cylinder with convex curved surfaces at both ends, and honeycomb holes 3 distributed in a network structure are arranged inside the body, and the honeycomb The cross-section of the hole is triangular, the thickness of the hole wall 1 is 0.3-0.5mm, and the reinforcing ribs 4 are arranged at intervals between the honeycomb cells, the thickness of the reinforcing ribs is 0.8-1mm, and the reinforcing ribs are arranged at six uniform intervals. The body is composed of 86 %wt green silicon carbide fine powder and 14%wt organoclay (montmorillonite type organoclay) form a composition, and account for 9%wt of the total weight of the composition of hydroxymethyl cellulose, 6%wt of tung oil, 9 The silica sol of %wt and the magnesium stearate of 5%wt are prepared by the method described in the examples.

[0052] The fin...

Embodiment 3

[0057] Embodiment 3, the high-efficiency, environment-friendly and high-strength nest-type support and protection agent includes a body 2, the body is in the shape of a flat cylinder with convex curved surfaces at both ends, and honeycomb holes 3 distributed in a network structure are arranged inside the body, and the honeycomb The cross-section of the hole is triangular, the thickness of the hole wall 1 is 0.3-0.5mm, and the reinforcing ribs 4 are arranged at intervals between the honeycomb cells, the thickness of the reinforcing ribs is 0.8-1mm, and the reinforcing ribs are six evenly spaced. The body is composed of 80 %wt green silicon carbide fine powder and 20%wt organoclay (bentonite-type organoclay) formed composition, and 7%wt hydroxymethylcellulose, 7%wt tung oil, 6%wt The silica sol of wt and the magnesium stearate of 6%wt are prepared by the following method again on the basis of the method described in Example 1.

[0058] The finished support and protection agent...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J33/00B01J35/04B01J27/224
Inventor 彭军李海李日炎刘庆国
Owner PINGXIANG ANFA COKING ENVIRONMENT PROTECTION FILLING
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