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Monolithic VOCs catalytic combustion catalyst, and preparation method thereof

A catalytic combustion, integrated technology, used in catalyst activation/preparation, combustion methods, physical/chemical process catalysts, etc. Effect of implementation, flexibility, simple process and equipment

Inactive Publication Date: 2019-05-03
BIOMINTEC ENVIRONMENT (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned catalyst preparation methods and the catalyst itself have problems such as complicated preparation process, high cost of raw materials, easy separation of active components from the carrier, and low mechanical strength.

Method used

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  • Monolithic VOCs catalytic combustion catalyst, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Cut the polyester fiber felt according to the dimensions of 15cm in length, 10cm in width, and 2cm in thickness, put it into the rotary furnace and feed in 2L / min of air, then raise the temperature at 2°C / min to 230°C for 8 hours, cool down to room temperature and leave material; put the obtained fiber felt into an atmosphere furnace, heat up to 800°C for 2 hours under a nitrogen atmosphere at 2°C / min, and then discharge the material after cooling down to room temperature; put the obtained carbonized fiber felt into a rotary furnace, and feed 200mL / min steam, heated to 600°C for 2 hours at 2°C / min, and discharged after cooling down to room temperature; Copper sulfate, manganese sulfate, cobalt sulfate, and cerium sulfate were respectively adjusted according to 5% and 5% of the mass of the activated carbon fiber felt matrix. %, 3%, and 3% are mixed and dissolved in water and impregnated into carbon fiber felt, then placed in a blast drying oven at 100°C to dry and take w...

Embodiment 2

[0063] Cut the polyester fiber felt according to the dimensions of 15cm in length, 10cm in width, and 2cm in thickness, put it into the rotary furnace and feed in 2L / min of air, then raise the temperature at 2°C / min to 230°C for 8 hours, cool down to room temperature and leave material; put the obtained fiber felt into an atmosphere furnace, heat up to 800°C for 2 hours under a nitrogen atmosphere at 2°C / min, and then discharge the material after cooling down to room temperature; put the obtained carbonized fiber felt into a rotary furnace, and feed 200mL / min carbon dioxide gas, heat up to 600°C at 2°C / min for activation for 2 hours, and discharge after cooling down to room temperature; copper sulfate, manganese sulfate, cobalt sulfate, and cerium sulfate are respectively 5% and 8% of the mass of the activated carbon fiber felt matrix , 3%, and 3% are mixed and dissolved in water and impregnated into carbon fiber felt, then put into a blast drying oven at 100°C to dry and take...

Embodiment 3

[0065] Cut the pitch-based fiber mat according to the size specifications of 15cm in length, 10cm in width and 2cm in thickness, put it into the rotary kiln and pass in 2L / min of air, then raise the temperature to 270°C at 2°C / min and react for 4 hours, cool down to room temperature and leave material; put the obtained fiber felt into an atmosphere furnace, heat up to 800°C for 2 hours under a nitrogen atmosphere at 2°C / min, and then discharge the material after cooling down to room temperature; put the obtained carbonized fiber felt into a rotary furnace, and feed 200mL / min steam, heated to 600°C for 2 hours at 2°C / min, and discharged after cooling down to room temperature; Copper sulfate, manganese sulfate, cobalt sulfate, and cerium sulfate were respectively adjusted according to 5% and 5% of the mass of the activated carbon fiber felt matrix. %, 3%, and 3% are mixed and dissolved in water and impregnated into carbon fiber felt, then placed in a blast drying oven at 100°C t...

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Abstract

The invention provides a monolithic VOCs catalytic combustion catalyst, and a preparation method thereof. According to the preparation method, a high molecular fibrofelt is subjected to carbonizationprocessing at certain conditions so as to obtain a carbon fibrofelt, and activation pore-forming is carried out; introduction of active components into the activated fibrofelt through dipping is carried out, drying is carried out, and under inert gas protection, calcining processing at a certain temperature is carried out so as to obtain the monolithic VOCs catalytic combustion catalyst. The monolithic VOCs catalytic combustion catalyst is low in catalytic initial temperature, wide in working temperature range, high in catalytic activity, and long in service life. The preparation method is simple, convenient, and effective; operation is convenient; raw materials are widely available; the prepared monolithic VOCs catalytic combustion catalyst is stable in structure and excellent in heat conductivity; active component distribution is uniform; abundant pore structures are formed; specific absorption capacity on small molecular volatile organic compounds is achieved; a problem in the priorart that the activity of a conventional monolithic VOCs catalyst is poor is solved; preparation cost is low; product property is stable; and the preparation method is suitable for industrialized production.

Description

technical field [0001] The invention relates to the technical field of VOCs purification treatment, and relates to a preparation method of a VOCs catalytic combustion catalyst, in particular to an integral VOCs catalytic combustion catalyst and a preparation method thereof. Background technique [0002] Volatile organic compounds (VOCs for short) refer to organic compounds that have a relatively high saturated vapor pressure and are relatively volatile at normal temperature and pressure. They are a relatively common and very important air pollutant. Volatile organic compounds mainly come from petrochemical, pharmaceutical, printing, spraying, motor vehicle and shoemaking industries, including hydrocarbons, aldehydes, esters, ketones, halogenated hydrocarbons, aromatic hydrocarbons, polycyclic aromatic hydrocarbons, etc. In the case of high concentration, VOCs will cause some organs and body of the human body to undergo pathological changes in a short period of time, and even...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J37/02F23G7/07
Inventor 徐潜李军
Owner BIOMINTEC ENVIRONMENT (SHANGHAI) CO LTD
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