With the rapid development of social economy and the further development of industrialization, a large number of gaseous pollutants (mainly 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 unwell, with symptoms such as 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.

世界各国对烟气脱硫都非常重视，已开发了数十种的脱硫技术，其中广泛采用的烟气脱硫技术有：石灰/石灰石—石膏湿法，具有适用煤种宽、原料廉价易得、脱硫率高（可达90％以上）等诸多优点，占据非常大的市场份额，但投资和运行费用大，运行维护量大。

Countries all over the world attach great importance to flue gas desulfurization and have developed dozens of desulfurization technologies. Among them, the widely used flue gas desulfurization technologies are lime / limestone gypsum wet method, 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 very large market share, but it has large investment and operation costs and large amount of operation and maintenance.

脱硫催化剂的优点可以提高脱硫效率，无需进行设备扩容改造；节能降耗（省厂用电）；减少石灰石用量；提高燃煤调整和脱硫运行、备用的灵活程度；增加石灰石的分散性，减少设备的结垢；提高氧化效率，减少亚硫酸根含量，提高真空皮带机脱水效率等。

The advantages of desulfurization catalyst can improve desulfurization efficiency without equipment capacity 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 and improve dehydration efficiency of vacuum belt conveyor.

脱硫催化剂在工业中的用途有很多种，特别是对于现在的工业来说基本上都离不开它，而在锅炉烟气的处理中使用脱硫催化剂可以给我们的工业制造带来很多方便。SO2污染已超过烟尘污染成为大气环境的一大污染物。随着世界各国工业化进程的不断加深，烟气脱硫（FGD）有别于其他脱硫方式是世界上一大规模商业化应用的脱硫方法，是控制酸雨和SO2污染的非常有用的和主要的技术手段。

Desulfurization catalyst has many uses in industry, especially for the current industry, which is basically inseparable from it. 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 large-scale commercial desulfurization method in the world. It is a very useful and main technical means to control acid rain and SO2 pollution.

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