A micro catalyst carrier mold, the manufacturing process of the mold and the method of preparing the carrier by using the mold

A catalyst carrier and mold technology, applied in the field of micro-catalyst carrier molds, can solve problems such as disadvantage and low strength of catalyst carrier

Active Publication Date: 2019-09-17
姚光纯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In addition to the above reasons, the smaller catalyst carrier has lower strength, which is not conducive to handling, loading and unloading, and there will be great problems in practical application

Method used

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  • A micro catalyst carrier mold, the manufacturing process of the mold and the method of preparing the carrier by using the mold
  • A micro catalyst carrier mold, the manufacturing process of the mold and the method of preparing the carrier by using the mold
  • A micro catalyst carrier mold, the manufacturing process of the mold and the method of preparing the carrier by using the mold

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0090] Example 1, alumina catalyst carrier manufacturing steps

[0091] (1). Select commercially available pseudo-boehmite produced by a certain company and macroporous aluminum hydroxide powder produced by a certain company as raw materials. The specific surface of pseudo-boehmite is 200-250m2 / g, the pore volume is 0.2-0.4ml / g, and the average pore diameter is 6-8nm; the specific surface of macroporous aluminum hydroxide powder is 250-350m2 / g, and the pore volume is 0.7 ~1.5ml / g, the average pore size is 12~20nm;

[0092] (2). The weight ratio is Pseudoboshemite: macroporous aluminum hydroxide = 80:20. 200kg of mixing main ingredients, i.e. 160kg of pseudo-boehmite, 40kg of large-aperture aluminum hydroxide powder, plus 1.5% carboxymethyl cellulose (CMC) as the binder, i.e. 3kg of CMC;

[0093] (3). Put the powder in step (2) into the screw mixer, mix for 20 minutes and take it out for use;

[0094] (4). Put 6 kg of 3% nitric acid of the main ingredient into deionized wate...

example 2

[0106] Example 2, molecular sieve catalyst carrier product production steps

[0107] (1) Select aluminum sol dry powder produced by a certain company and SAPO-11 molecular sieve raw powder produced by a certain company. The chemical molecular formula of aluminum sol is a(Al2O3·nH2O)·bHx·cH2O, in which: Al2O3·nH2O is hydrated alumina, Hx is peptizer, coefficient: b

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Abstract

The invention discloses a miniature catalyst carrier mold, a manufacturing technology of the mold and a method for preparing carriers with the mold. The mold comprises a male mold and a female mold; one end of the male mold and one end of the female mold are press-fitted; a plurality of mud inlets and bar needle accommodating holes are axially formed in the male mold, and mud guide bars are inserted in the bar needle accommodating holes; a plurality of molding holes are axially formed in the female mold; when one end of the male mold and one end of the female mold are press-fitted, the molding holes and the bar needle accommodating holes are coaxial, and the mud guide bars penetrate through the molding holes and the bar needle accommodating holes; a groove is inwards and axially formed in one end surface, press-fitted with the male mold, of the female mold; an interlayer gas is formed between the groove and one end surface of the male mold; and the outer diameter of each mud guide bar is smaller than the inner diameter of each molding hole. The mold, the manufacturing technology and the method have the advantages that small-diameter hollow carriers can be prepared, active substances in catalysts can be comprehensively utilized, the catalysis efficiency can be improved, and the cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of active catalyst carriers, in particular to a micro catalyst carrier mould, a manufacturing process of the mould, and a method for preparing a carrier by using the mould. Background technique [0002] Catalysts are widely used and indispensable products in the petrochemical field, mainly used in the chemical processing process in the production of petrochemical products. [0003] The catalyst is mainly composed of two parts, which are the carrier and the active material, and the active material is loaded on the carrier to form the catalyst. The active substance is an active component composed of one or more metal elements, metal oxides, and metal sulfides. The active component is loaded on a carrier, which is convenient for handling, delivery, and recovery. The most important thing is that it can provide catalytic reactions. Appropriate pores are used for selective catalytic reactions, and at the same tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B3/20B28B3/26B28B7/18B28B7/30B01J32/00
Inventor 姚光纯徐刚强李付林
Owner 姚光纯
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