Preparation method of concave convex rod stone clay desulfur adsorption catalyst

A technology of attapulgite clay and catalyst, which is applied in the directions of chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., to achieve the effects of simple desulfurization process, easy operation and control, and improved adsorption and catalysis efficiency

Inactive Publication Date: 2005-03-23
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0002] At present, there are many kinds of adsorption catalysts for hydrogen sulfide removal. The better catalyst for hydrogen sulfide removal is composite iron, which can achieve a desulfurization effect of less than 5ppm, but the effect is better when the hydrogen sulfide content is low, and the sulfur capacity can reach 20. % or more, but its sulfur capacity is less than 10% for high hydrogen sulfide gas

Method used

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Embodiment Construction

[0012] The invention relates to a preparation method of an attapulgite clay desulfurization adsorption catalyst. The attapulgite clay is used as a raw material, and composite iron, pyrolusite and water are added, stirred, extruded, and then activated by roasting. The main components of composite iron are ferric hydroxide and carbonate, and the rest are impurities. The main component of pyrolusite is manganese oxide. Attapulgite clay has a purity of 93%.

[0013] The specific steps of the preparation method are:

[0014] (1) Select attapulgite clay and add not less than 10% by weight;

[0015] (2) The weight of adding composite iron is not less than 10%, and the weight of pyrolusite is not less than 10%;

[0016] (3) add water and stir, and the content of water is not less than 10%; Remove the weight of composite iron, pyrolusite and water, and the rest is the weight of attapulgite clay;

[0017] (4) extrusion molding, the size is 5mm in diameter and 12mm in length;

[001...

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Abstract

A desulfurizing adsorption catalyst is prepared from attapulgite clay through adding composite Fe, pyrolusite and water, stirring, die pressing and calcining for activating it.

Description

technical field [0001] The invention relates to a method for preparing and activating a solid adsorbent composition, in particular to a method for preparing a catalyst with clay. Background technique [0002] At present, there are many kinds of adsorption catalysts for hydrogen sulfide removal. The better catalyst for hydrogen sulfide removal is composite iron, which can achieve a desulfurization effect of less than 5ppm, but the effect is better when the hydrogen sulfide content is low, and the sulfur capacity can reach 20. % or more, but its sulfur capacity is less than 10% for high hydrogen sulfide gas. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing an adsorption catalyst with higher adsorption capacity for hydrogen sulfide gas by using attapulgite clay. [0004] The invention relates to a preparation method of an attapulgite clay desulfurization adsorption catalyst. The attapulgite clay is used as a raw mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52B01D53/86B01J20/12B01J23/889
Inventor 王青宁俞树荣李春雷叶启智冯辉霞张飞龙
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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