Views: 4 Author: XICHENG EP LTD Publish Time: 2021-08-05 Origin: XICHENG EP LTD
Nowadays, for the organic waste gas generated by industry, various waste gas treatment equipment is used, such as catalytic combustion method (RTO), catalytic oxidation method (UV photo-oxidation equipment), activated carbon adsorption method (activated carbon adsorption device), etc. If activated carbon is used for adsorption, it is a cheaper one. Generally, for the adsorption capacity of activated carbon, the iodine value determines the adsorption capacity of activated carbon, which can effectively purify gaseous pollutants. This article is led by the editor of Henglan Environmental Protection, which one is used to treating organic waste gas with activated carbon?
The gas components that can be adsorbed by activated carbon are benzene, toluene, xylene, carbon monoxide, hydrogen sulfide, ammonia, organic acids, chlorine, hydrocarbons, carbon dioxide, chlorine, formaldehyde, volatile sulfur oxides, and organic compounds, etc... Iodine value refers to the amount of iodine adsorbed by activated carbon in a 0.02N 12/KL aqueous solution. The iodine value is associated with the surface area of pores with a diameter greater than 10A.
The price of activated carbon is high and low, and the iodine value is one of the criteria for judging. Generally, the iodine value of activated carbon is 400~1300. In addition to the iodine value, there are also values such as butane value, ash content, and bulk weight.
The iodine value is a numerical value indicating the adsorption capacity of activated carbon. The specific content is the amount of iodine absorbed by the quantitative activated carbon in the standard iodine solution. It is generally used to indicate the adsorption capacity of activated carbon for small molecular impurities. In the process of universal use of activated carbon, there is no mandatory requirement for which type of activated carbon to be used in which field, so in the process of selecting more suitable activated carbon, many customers decide through sample experiments, because we have only used experiments, we To more intuitively observe the effects of activated carbon during use, the sample experiment can enable us to have a clearer direction and purpose when purchasing activated carbon.
Many customers choose columnar activated carbon in most industrial waste gas treatments because of its large specific surface area, high mechanical strength, wide contact area, and high recycling value. Generally, coal-based columnar activated carbon is used, and the more commonly used ones are 1.5mm and 4.0mm in diameter.
In addition, honeycomb activated carbon blocks are often used to filter organic waste gas. The characteristics of honeycomb activated carbon are good purification effect, low wind speed resistance, and can reach the secondary emission standard of waste gas. Honeycomb activated carbon is suitable for the treatment of large air volume and low concentrations of factory organic waste gas (triphenyl and toxic and harmful gases). It is also suitable for indoor air purification and catering oil fume waste gas treatment.
Generally, the design scheme is based on different types of waste gas, waste gas concentration, and other values for activated carbon to treat organic waste gas. It is necessary to select activated carbon with different iodine values or different forms of activated carbon according to different industries. XICHENG EP LTD. suggests that you can find a professional waste gas treatment agency to consult a detailed waste gas treatment plan. Exhaust gas treatment equipment needs to purchase equipment that meets national safety standards.