With the rapid development of social economy and the further acceleration of industrialization, a large number of gaseous pollutants (mainly organic or inorganic substances containing paint, sulfur, nitrogen and oxygen) are produced in the industrial process, forming industrial waste gas. Untreated industrial waste gas discharged into the atmosphere will seriously pollute the environment and affect the quality of life of nearby residents. For example, it will make people feel uncomfortable, with symptoms such as headache, dizziness, nausea, vomiting, loss of appetite and lack of concentration. In addition, it also affects people's respiratory system, circulatory system, digestive system and reproductive system.
Countries all over the world attach great importance to flue gas desulfurization and have developed dozens of useful desulfurization technologies. Among them, the widely used flue gas desulfurization technologies are lime / limestone gypsum wet process, which has many advantages, such as wide applicable coal types, cheap and easy availability of raw materials, high desulfurization rate (up to more than 90%), and occupies a large market share, but it has large investment and operation costs and large amount of operation and maintenance.
The advantages of desulfurization catalyst can improve desulfurization efficiency without equipment expansion and transformation; Energy saving and consumption reduction (saving auxiliary power); Reduce limestone consumption; Improve the flexibility of coal adjustment and desulfurization operation and standby; Increase the dispersion of limestone and reduce the scaling of equipment; Improve oxidation efficiency, reduce sulfite content, improve dehydration efficiency of vacuum belt conveyor, etc.
There are many uses of desulfurization catalyst in industry, especially for the current industry, it is basically inseparable from it, and the use of desulfurization catalyst in the treatment of boiler flue gas can bring a lot of convenience to our industrial manufacturing. SO2 pollution has exceeded soot pollution and become a major pollutant in the atmospheric environment. With the deepening of industrialization in the world, flue gas desulfurization (FGD) is different from other desulfurization methods. It is a desulfurization method for large-scale commercial application in the world. It is a useful and main technical means to control acid rain and SO2 pollution.