Essence columnar activated carbon adsorption using activated carbon adsorption characteristics of the low concentration of wind capacity in the exhaust gas adsorbed to the activated carbon in an organic solvent and concentrated, purified gas adsorption by activated carbon column emptied directly, and its essence is a concentrated adsorption process, and No organic solvents disposed of, so the process is a physical process. Iodine value is an indicator of superficial chemical properties, generally considered the level of its value and the number of microporous activated carbon has a good correlation, the test principle is to weigh a certain amount of columnar activated carbon sample was configured with known concentrations of iodine The solution was thoroughly mixed by shaking adsorption, the solution was determined by titration of residual iodine value of activated carbon, calculate the number of milligrams of iodine per gram of activated carbon adsorption column. Determination of iodine value indicator is activated carbon adsorption column can be commonly used indicator, widely used in cylindrical carbon production, scientific research, our various activated carbon adsorption properties of activated carbon are generally characterized by this index; therefore should report test results marked using an iodine value of detection methods. In the industrial use of activated carbon as an adsorbent activated carbon shell purposes, to think of high adsorption efficiency, long service life, the product must meet the following conditions: 1, size in light oil industry, the size of the granular activated carbon is very strict, too big and too small particles are less than optimal adsorption. Often producing granular activated carbon has a diameter of 3 mm and a length of 5-6 mm. It requires its uniformity: 8 hole mesh should be less than 20% of the total hole 4-8 aim should be above 99%. 2, the hardness of the so-called compressive strength. The greater the intensity, the more easily broken, and often the requirement for activated carbon having a compressive strength of 4 kg / cm 2. From the point of view of stomata shell activated carbon ash, hardness, the fewer pores, pores and hardness should be seen to adapt, both strong adsorption efficiency reduce crushing hardness. 3, the adsorption efficiency of the activated carbon adsorption efficiency when the load at 20 ℃ than 40%; 1/10 benzene adsorption at saturated vapor, the adsorption capacity should be 32 g / cm 3; adsorption butane, pentane should be close to 100 %. 4, water can also be said of activated carbon humidity. Coconut shell activated carbon water content greater iodine adsorption value, the lower the adsorption capacity. National requirements for manufacturers of activated carbon water containing not more than 5%. 5, the density of activated carbon bulk density between 0.42-0.54 g / cm3, and the density is between 1.85-1.93 g / cm 3. The lower bulk density, the higher the activity of the activated carbon. Nutshell activated carbon filter | Huaihua carbon | activated carbon filter provided by Song Xin Gongyi City Song Xin Industrial Co., Ltd. filter. Filter Gongyi City Song Xin Industrial Co., Ltd. (www.sxlc.com) strong, credible, in Zhengzhou, Henan Cleaning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Song Xin filter into the brilliant and you work for a better future!