ALMN composite pillared clay-supported CRCE catalyst, preparation method and application

A composite column and catalyst technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of large solvent usage, unstable results, complicated processes, etc., and achieve large pore size, catalytic activity and stability, High catalytic activity

Inactive Publication Date: 2015-09-23
SHAOXING UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of this process is: need to prepare a large amount of NaOH and A1C1 3 Solution and solvent use a large amount, high cost, complex process, unstable results, not easy to repeat, such as being affected by containers, stirring equipment, temperature and humidity, etc., and easily polluted when placed in the air

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  • ALMN composite pillared clay-supported CRCE catalyst, preparation method and application
  • ALMN composite pillared clay-supported CRCE catalyst, preparation method and application
  • ALMN composite pillared clay-supported CRCE catalyst, preparation method and application

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Embodiment Construction

[0022] figure 1 A brief flow chart of the preparation process of the AlMn composite pillared clay-supported CrCe catalyst provided by the present invention. Combine below figure 1 And embodiment will further illustrate the present invention.

[0023]Preparation of AlMn composite columnizer: a. Take 10mL6mol / L Locron L and a certain volume of 1.0mol / L manganese nitrate solution with a pipette (adjust the molar ratio: Al / Mn=2.5 / 1, 5 / 1 , 7.5 / 1 or 10 / 1), add it to the autoclave, and then add deionized water to the autoclave to dilute the solution so that the concentration of Al ions is 2.5mol / L. In this example, Clariant Locron L basic aluminum chloride (liquid), also known as antiperspirant, was used as the source of the aluminum pillaring agent.

[0024] b. Tighten the lid of the autoclave with a wrench, put it in an oven at a certain temperature (80°C, 100°C or 120°C) and bake for 24 hours, take it out the next day, put the autoclave into cold water to cool, and wait until i...

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Abstract

The invention provides an AlMn composite pillared clay supported CrCe catalyst, and a preparation method and the application of the catalyst. According to the AlMn composite pillared clay supported CrCe catalyst, AlMn composite pillared clay serves as a carrier and is of a microporous-mesoporous structure, the specific surface area of the AlMn composite pillared clay is 174.2-246.7m<2> / g, the total pore volume is 0.126-0.158cm<3> / g, and the total supporting amount of Cr and Ce accounts for 10 mass percent. The AlMn composite pillared clay supported CrCe catalyst is high and stable in catalytic activity, and can be applied to catalytic degradation of CVOCs (chlorinated volatile organic compounds) pollutants in atmospheric pollution.

Description

technical field [0001] The invention belongs to the technical field of chemical catalysts and preparation techniques thereof, and in particular relates to an AlMn composite pillared clay-supported CrCe catalyst, a preparation method and an application thereof. Background technique [0002] Common types of Chlorinated Volatile Organic Compounds (CVOCs) include dichloromethane (DCM), dichloroethane (DCE), trichloroethylene (TCE) and chlorobenzene (PhCl), etc. It is widely used as a commonly used organic solvent and as a semi-finished product in chemical industry production. However, such substances are very harmful to the environment and human health. Therefore, both at home and abroad are now committed to the elimination of chlorine-containing organic compounds. Among them, catalytic combustion technology has the remarkable characteristics of low ignition temperature and low energy consumption, and is widely used. The purification rate of catalytic combustion method to trea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/34B01D53/86B01D53/70
Inventor 齐陈泽左树锋
Owner SHAOXING UNIVERSITY
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