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Catalyst piece for removal of dioxins and forming method of catalyst piece
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A molding method and dioxin technology, applied in the field of pollutant treatment, can solve problems such as aggravating the difficulty of dioxin pollution control, and achieve the effects of increased contact probability, large specific surface area and high porosity
Active Publication Date: 2014-03-05
重庆利特聚欣资源循环科技有限责任公司
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With the rapid development of my country's economy and the increase of waste disposal, the output or waste disposal of these major industries will continue to increase. If the prevention and control of dioxin pollution is not strengthened, the structural adjustment and technical Upgrading will inevitably increase the difficulty of dioxin-like pollution control
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[0056] 4) Turn on the disperser, and the dispersing time is ≥10 minutes. During the operation of the disperser, stop the machine according to the situation to clean the inner wall of the container and the materials attached to the dead corners, so that they can be fully dispersed.
[0057] 5) After the materials are fully mixed, put the mixture into the baking tray with a container, t...
Embodiment 2
[0069] 1) Weigh 20kg of catalyst powder, 8kg of aluminum silicate fiber felt, and 2kg of bentonite; the catalyst powder is ball milled from 0.02kg of dry vanadium powder, 3kg of manganese powder, 16.66kg of titanium dioxide and 0.2kg of vanadium pentoxide powder After calcining, it is obtained by mixing with 0.02kg of carbon nanotubes;
[0070] 2) Manually shred the aluminum silicate fiber felt into flocs, and the floc size shall not exceed 5×5×5cm.
[0071] 3) Put the weighed catalyst, bentonite and shredded aluminum silicate fiber mat into the disperser container, and add about 15kg of water.
[0072] 4) Turn on the disperser, and the dispersing time is ≥10 minutes. During the operation of the disperser, stop the machine according to the situation to clean the inner wall of the container and the materials attached to the dead corners, so that they can be fully dispersed.
[0073] 5) After the materials are fully mixed, put the mixture into the baking tray with a container, ...
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Abstract
The invention provides a forming method of a catalyst piece for removal of dioxins. In the forming process of the catalyst piece, forming raw materials are prepared firstly, then a supporting net is placed between the two layers of forming raw materials, and finally pressing and roasting are performed to obtain the catalyst piece. According to the catalyst piece prepared by the method, the supporting net is arranged between the forming raw materials, namely the catalyst layers, so the porosity and the specific surface area of the catalyst piece are increased; due to glass fiber in the catalyst layers, the flowing channels of the dioxins are increased and removal of the dioxins is promoted. The invention also provides the catalyst piece for removal of the dioxins. The catalyst piece comprises the first catalyst layer, the supporting net and the second catalyst layer which are arranged sequentially in a superposed mode.
Description
technical field [0001] The invention relates to the technical field of pollutant treatment, in particular to a catalyst sheet for removing dioxins and a forming method thereof. Background technique [0002] Dioxins include polychlorinated dibenzodioxins and polychlorinated dibenzofurans (PCDD / DFs for short). Dioxins are a class of very stable lipophilic solid compounds with a high melting point and a decomposition temperature greater than 700°C. They are extremely difficult to dissolve in water but soluble in most organic solvents. Therefore, dioxins are easy to accumulate in organisms. . Microbial degradation, hydrolysis and photolysis in nature have little effect on the molecular structure of dioxins and are difficult to degrade naturally. Therefore, they are the most toxic persistent organic pollutants with long-term residual, bioaccumulative and semi-volatile properties. And it is highly toxic, and it can migrate long distances through various environmental media inclu...
Claims
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Application Information
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