Abstract: Now the situation of air pollution in China is still serious.The multi-pollutant collaborative control with activated carbons can simultaneously remove multi-pollutant,such as SO_2,NO_x and H_2S without water consumption and secondary pollution.It has been used in the flue gas purification of iron-steel sintering and coke oven et al,but the purification efficiency needs to be improved.In the coking industry,the activated carbon technology demands a higher denitrification efficiency and effectively capturing multiple pollutants for the coke oven flue gas with the emission characteristics of low sulfur,high nitrogen and multi-pollutant coexisting.In order to explore the factors to improve the efficiency of coke oven flue gas purification,the industrial test platform was built for multi-pollutant collaborative control with activated carbon for coke oven flue gas purification.The flue gas flow rate was 33 000 Nm~3/h. The moving speed of activated carbon and ammonia injection quantity were adjusted to investigate and optimize the flue gas purification efficiency. The effect of moving process on physical properties of activated carbon,properties of activated carbon after regeneration and carbon consumption were analyzed.The results indicate that the desulfurization efficiency and denitrification efficiency of the multi-pollutant collaborative control technology with activated carbon are more than 99% and 80%,respectively.The emission indexes meets the special emission standards( NO_x≤150 mg/Nm~3,SO_2≤30 mg/Nm~3,PM≤15 mg/Nm~3).The compressive strength of activated carbon obviously decreases by 33%-55% during the moving process,especially for the smaller diameter activated carbon,while the abrasion resistance decreases slightly,but the decrease range is small.The decrease of these two parameters will increase the consumption of activated carbon.The recovery rate of elemental sulfur in the regeneration process is up to 90%,and the specific surface area of activated carbon after adsorption( before regeneration) is approximately20 percent lower than fresh activated carbon.The physical carbon abrasion of activated carbon mainly depends on the moving speed,and the chemical carbon consumption depends on decomposition of the functional groups.The total carbon consumption of activated carbon is approximately 10.7 percent per year of the first loading capacity.