Sorption purification of process gases of metallurgical production from sulfur components

Today, during the continuous development of technologies for the processing of raw materials for metallurgical production, constant improvement of technical, economic and environmental indicators is necessary. The problem of purification of process gases is relevant due to the fact that metallurgical enterprises as a result of pyrometallurgical processing of raw materials, including sulfur-containing compounds, produce waste gases containing hydrogen sulfide, mercaptans and other harmful substances. Metallurgical plants are basically the largest sources of air pollution by gas emissions, estimated at tens of thousands of tons per year, which include blast-furnace, converter, coke, ferroalloy and other gases. Exhaust gases contain components whose emission into the atmosphere is unacceptable for sanitary and hygienic reasons. For environmental safety, sulfur-containing gases are recycled. To date, there are many ways to process waste gases: dry, wet, gas-phase, catalytic, reagent methods for the disposal of sulfur compounds. In the field of environmental protection, an important place is given to adsorption methods. A variety of sorbents and possible technical solutions allow the use of sorption purification systems in virtually all industries. One of the promising areas of sorption disposal of metallurgical production waste gases is the use of an adsorbent based on domestic ferromanganium ores. In this paper, we analyzed the literature data on the purification of process gases from sulfur-containing impurities of metallurgical industries using various types of sorbents. Studies on the sorption of impurity components on zeolites, activated carbons and manganese ores of different composition are presented, the capacitance parameters of the presented sorbents and other characteristics are compared. Considered installation for the sorption of gases and the technological parameters of the process of sorption - the optimum temperature, pressure and gas transmission rate through the sorbents.