A kind of preparation method of volatile organic compound waste gas active adsorbent

Abstract

The invention relates to the technical field of volatile organic compound waste gas treatment, in particular to a preparation method of a volatile organic compound waste gas activated adsorbent. The preparation method is characterized in that 100 parts of circulating fluidized bed coal-fired boiler fly ash, 5-10 parts of sulfur and 1-1.5 parts of disulfur dichloride are proportioned by weight and are activated and granulated, and boiler tail gas and boiler-discharged pollutants such as smoke dust are utilized in a high-value mode to prepare the VOCs adsorbent, and the purposes of providing the cheap VOCs adsorbent, saving energy, reducing emissions, recycling resources and the like are achieved.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment of volatile organic compounds, in particular to a method for preparing an active adsorbent for waste gas of volatile organic compounds. Background technique [0002] Gaseous pollutants emitted by industry are the main source of atmospheric environmental pollutants, among which volatile organic compound waste gas (VOCs) is a gaseous pollutant that is seriously harmful to the environment, and it is also an occupational hazard that affects the health of operators in the workplace It is widely derived from chemical industries such as paints, coatings, coatings, lubricants, and rubber. Due to its huge destructive effect on the human body and the natural environment, the country has issued relevant laws and regulations to strictly control its governance and emissions. At present, the commonly used treatment methods of organic waste gas treatment technology include combustion method, chemica...

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Problems solved by technology

[0003] Example 1 of the prior art uses zeolite and activator (catalyst) copper oxide and oxyferric chloride to be calcined in a muffle furnace to prepare an organic waste gas adsorbent, which utilizes the characteristics of large specific surface area and strong adsorption capacity of zeolite. Utilize copper oxide, oxyferric chloride activation to enhance adsorption capacity, usually muffle furnace is used for experimental analysis, and the method description is also an experimental process, that is to say, this technology is still far away from industrialization; Activated carbon is used as the raw material, and it is modified and activated. The final step is to send it into a calciner for calcination and grinding. It is similar to two activated carbon activation processes: first activate the raw material to make activated carbon, and then activate the activated carbon to make an adsorbent. General-purpose activated carbon, the process is more complicated, and twice heating, energy consumption is higher, and the cost is also much higher at the same time; The processing method of circulating fluidized bed boiler fly ash mentioned in prior art example 3 is water or water and water and A mixture of surfactants is used to modify the surface of circulating fluidized bed boiler fly ash to become raw materials such as cement, concrete, brick, ceramsite, fillers, etc., so using it sacrifices its large specific surface area and good adsorption activity. Characteristic while high value utilizes the value of active adsorbents for VOC waste gases

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