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A kind of preparation method for the composite adsorbent of vocs in purifying air

A composite adsorption and air purification technology, which is applied in the direction of chemical instruments and methods, separation methods, alkali metal compounds, etc., can solve the problems of demanding industrial equipment, cumbersome method procedures, and poor adsorption efficiency, so as to facilitate removal and improve The specific surface area and the effect of improving the adsorption capacity

Active Publication Date: 2017-06-20
MAANSHAN HUASHENG METALLURGICAL SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of the prior art that the cost of VOCs adsorbent is relatively high, and the adsorption efficiency is relatively poor, the method of generation is cumbersome, and the requirements for industrial equipment are relatively harsh, and a method for purifying air is provided. The preparation method of the VOCs composite adsorbent, the VOCs adsorbent of the present invention has a strong adsorption capacity for VOCs in the air through creative raw material component distribution ratio, simple operation and low cost, so as to achieve high efficiency and low cost of VOCs emission reduction

Method used

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  • A kind of preparation method for the composite adsorbent of vocs in purifying air

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Embodiment 1

[0035] A kind of composite adsorbent used for purifying VOCs in the air of the present embodiment, each component of described adsorbent is made up according to the following mass parts: 30kg of activated alumina, 40kg of activated carbon, 15kg of iron ore powder, pelletizing ore sieve 10kg, 8kg of biomass material, 2kg of magnesia laterite nickel ore, 5kg of kaolin, 15kg of additives. The creative component distribution ratio, as well as the special particle size composition of activated alumina and activated carbon, make the adsorbent have high porosity and specific surface area. When VOCs are in contact with the adsorbent, the adsorbent can fully contact with VOCs, which is beneficial to VOCs Removal, while increasing the specific surface area, further improves the adsorption capacity of the adsorbent.

[0036] It is worth noting that: the particle size of the activated alumina is composed of the following mass percentages: particle size≤0.074mm: 5%, 0.074-3.0mm: 25%, 3.0-5...

Embodiment 2

[0056] A kind of composite adsorbent for purifying VOCs in the air of the present embodiment, each component of described adsorbent is made up according to the following mass parts: 35kg of activated alumina, 55kg of activated carbon, 18kg of iron ore powder, pelletizing ore sieve 15kg, 12kg of biomass material, 3kg of magnesia laterite nickel ore, 8kg of kaolin, 20kg of additives. The creative component distribution ratio, as well as the special particle size composition of activated alumina and activated carbon, make the adsorbent have high porosity and specific surface area. When VOCs are in contact with the adsorbent, the adsorbent can fully contact with VOCs, which is beneficial to VOCs Removal, while increasing the specific surface area, further improves the adsorption capacity of the adsorbent.

[0057] A kind of preparation method of the composite adsorbent for purifying VOCs in the air of the present embodiment,

[0058] Step 1: Mix and mix the ingredients

[0059] ...

Embodiment 3

[0072] A kind of composite adsorbent for purifying VOCs in the air of the present embodiment, each component of described adsorbent is made up according to the following mass parts: activated alumina 50kg, activated carbon 60kg, iron ore powder 20kg, pelletizing ore sieve 20kg, 15kg of biomass material, 4kg of magnesia laterite nickel ore, 10kg of kaolin, and 25kg of additives. The creative component distribution ratio, as well as the special particle size composition of activated alumina and activated carbon, make the adsorbent have high porosity and specific surface area. When VOCs are in contact with the adsorbent, the adsorbent can fully contact with VOCs, which is beneficial to VOCs Removal, while increasing the specific surface area, further improves the adsorption capacity of the adsorbent.

[0073] A kind of preparation method of the composite adsorbent for purifying VOCs in the air of the present embodiment,

[0074] Step 1: Mix and mix the ingredients

[0075] (1) ...

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Abstract

The invention discloses a preparation method of a compound adsorbent for purifying VOCs in air and belongs to the field of treatment of VOCs in air. The preparation method comprises the following specific steps: step 1, uniformly mixing the raw materials: (1) activated aluminium oxide, activated carbon and iron ore powder are uniformly mixed to prepare and obtain a mixture A; (2) pelletizing sieve residues, biologic materials, magnesian nickel laterite ore and kaolin are uniformly mixed to prepare and obtain a mixture B; (3) the mixture A and the mixture B are uniformly mixed to prepare and obtain adsorbent blending materials; step 2, pelletizing: the adsorbent blending materials are put into a cylindrical mixer and uniformly mixed to prepare and obtain adsorbent particles; step 3, heating: the adsorbent particles are put in a drying oven to be heated and the adsorbent is prepared and obtained after heating. The adsorbent provided by the invention is higher in porosity and specific surface area and can be in full contact with VCOs, so that the adsorption efficiency of the adsorbent is improved, and the high-efficiency and low-cost emission reduction of VOCs is achieved.

Description

technical field [0001] The invention relates to the field of VOCs treatment in the atmosphere, and more specifically, relates to a preparation method of a composite adsorbent for purifying VOCs in the air. Background technique [0002] VOCs usually refer to volatile organic chemicals with high vapor pressure at normal temperature and pressure, mainly including alkanes, olefins and aromatic hydrocarbons, as well as various oxygen-containing hydrocarbons, halogenated hydrocarbons, nitrogen hydrocarbons, sulfur hydrocarbons, low boiling point and more Aromatic hydrocarbons, etc., are a class of organic pollutants that are ubiquitous in the air and have a complex composition. Since there are many types of VOCs involved, their physicochemical properties show diversity and have certain potential hazards. Some highly active VOCs can react photochemically with nitrogen oxides under certain conditions, causing an increase in the concentration of surface ozone to form photochemical s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30B01D53/02
CPCY02A50/20
Inventor 赵志刚从俊强姜峰相冬文张艳华吴雪健赵芃张明博付兵
Owner MAANSHAN HUASHENG METALLURGICAL SCI & TECH DEV
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