Coke oven gas is a valuable resource, as an industrial or civil fuel, is a kind of clean energy. In the coking process, 30% - 35% of sulfur in raw coal is converted into sulfide such as hydrogen sulfide, which forms impurities in the gas together with ammonia and nitrogen sulfide. Hydrogen sulfide is highly corrosive. If hydrogen sulfide is not removed from coke oven gas, it will seriously corrode the equipment. As a civil fuel, it will pollute the environment and damage people's health; Now let's learn about the relevant knowledge of gas desulfurization process.
After decades of development, coke oven gas desulfurization process has formed some traditional processes, which are simple, easy to operate, stable in production and play an important role in coking production; Coke oven gas desulfurization has its particularity. In terms of process, in the desulfurization reaction process, accompanied by oxidation regeneration sulfur evolution process, the analyzed sulfur can be separated in time, so that the reaction sulfur is proportional to the sulfur carried out, achieving material balance, bringing production into a virtuous cycle control, and pursuing high-energy, low consumption, long-term, safe and economic operation.
In recent years, with the continuous progress of coking technology, in order to achieve better desulfurization effect, many plants have some changes in the actual operation. For the desulfurization of coke oven gas, the content of hydrogen sulfide in one inlet is very high. In the design of desulfurization process, it is generally designed as two systems, which can be operated in parallel or in series. When the two desulfurization towers are operated in parallel, the resistance of desulfurization system is small, the load of single tower is low, and it is not easy to block the tower; Considering the high content of hydrogen sulfide in the inlet of coke oven gas, the desulfurization device adopts double tower series operation mode.
With the attention of environmental protection, the status of coke oven gas desulfurization process is getting higher and higher. It is hoped that through continuous optimization and adjustment, the whole system can achieve economic, high-energy, long-term stable operation.