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Bird-nest catalyst carrier

A technology of catalyst carrier and bird's nest, which is applied in the field of catalyst carrier, can solve problems that cannot meet the development of new technologies and processes, and achieve the effect of increasing the total amount of effective contact

Inactive Publication Date: 2011-06-15
姚光纯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of the catalyst is closely related to the catalyst carrier. No matter what kind of structure the existing catalyst carrier is, most of them cannot make the coated catalyst meet the above technical requirements, and cannot meet the needs of the development of new technologies and processes in the chemical industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1, in figure 1 and figure 2 Among them, the bird's nest catalyst carrier is φ30±3, which includes a body 1, and the inner cavity of the body is formed with honeycomb holes 2 that are uniform in size, parallel up and down, and staggered left and right. The cross section of the honeycomb holes is triangular. Specific surface area of ​​the bird's nest catalyst carrier: 380m2 / g, pore volume: 0.55ml / g, porosity: 65%, honeycomb hole diameter: 1.6mm, honeycomb hole density: 300 mesh, the bird's nest catalyst carrier adopts the activity of 85%wt The mixture formed by mixing aluminum oxide, 10%wt silicon carbide, and 5%wt titanium dioxide is the main raw material, and then add tung oil in an amount of 5% of the total weight of the main raw materials and feldspar of 2% of the total weight of the main raw materials. After 20 hours Ball milling, kneading, aging for 24 hours, mud refining, molding, drying at 120°C to shape, cutting and firing at a low temperature of 600-90...

Embodiment 2

[0015] Embodiment 2, described bird's nest catalyst carrier adopts the mixture that the active alumina of 65%wt, 10%wt silicon carbide, the titanium dioxide of 5%wt, the natural clay of 20%wt are mixed as main raw material, add above-mentioned main raw material total again 7% tung oil by weight and 3% feldspar by weight of the above-mentioned main raw materials, ball milled for 20 hours, kneaded, aged for 24 hours, smelted, shaped, dried at 120°C for setting, cut and kept at a low temperature of 600-900°C Fired for 6 hours, the specific surface area of ​​the bird's nest catalyst carrier: 250m2 / g, pore volume: 0.45ml / g, porosity: 55%, honeycomb hole diameter: 1.2mm, honeycomb hole density: 600 mesh,

Embodiment 3

[0016] Embodiment 3, described bird's nest catalyst carrier adopts the active alumina of 100%wt as main raw material, adds the tung oil of 3% of above-mentioned main raw material gross weight and the feldspar of above-mentioned main raw material gross weight 1%, through ball milling in 20 hours, It is kneaded, aged for 24 hours, smelted, shaped, dried at 120°C to set the shape, cut and fired at a low temperature of 600-900°C for 6 hours. The specific surface area of ​​the bird's nest catalyst carrier: 160m2 / g, pore volume: 0.42 ml / g, porosity: 70%, honeycomb hole diameter: 0.4mm, honeycomb hole density: 680 mesh,

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Abstract

The invention discloses a bird-nest catalyst carrier, which comprises a body (1). The body is cylindrical or cuboid; and honeycomb holes (2) which are uniformly distributed, and parallel or staggered vertically and staggered or parallel horizontally are formed in an inner cavity of the body. One or a mixture of more of activated aluminium oxide, zirconium oxide, magnesium oxide, silicon carbide, titanium dioxide and natural clay is taken as a main raw material, is added with an adhesive, a fusing agent and a proper amount of water, and is subjected to ball milling, kneading, ageing, mixing, molding, drying, shaping, cutting and low-temperature sintering to form the bird-nest catalyst carrier. Due to large specific surface area and void ratio, large internal through pore diameter and large pore volume, the bird-nest catalyst carrier can improve the total effective contact quantity to the greatest extent and shorten the flowing path of raw oil in the catalyst, so that the catalyst in the carrier can fully achieve the effect, and the raw oil flowing through the catalyst is fully separated, adsorbed, purified and filtered.

Description

technical field [0001] The invention relates to a catalyst carrier, in particular to a bird's nest catalyst carrier. Background technique [0002] With the continuous development of the chemical industry, people put forward higher and higher technical requirements for various chemical reactions, especially in the catalytic reaction, people hope that the catalytic reaction will be more selective and the catalytic reaction effect will be better. The performance of the catalyst is closely related to the catalyst carrier. No matter what kind of structure the existing catalyst carrier is, most of them cannot make the coated catalyst meet the above technical requirements, and cannot meet the needs of the development of new technologies and processes in the chemical industry. Contents of the invention [0003] Aiming at the above-mentioned problems existing in the catalyst carrier in the prior art, the present invention proposes a bird's nest catalyst carrier with strong selectiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J35/04B01J35/10B01J27/224B01J21/04B01J21/10B01J21/16
Inventor 姚光纯
Owner 姚光纯
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