With the more stringent standards of Chinese air pollution regulations, the next 5--10 years will be the key period for Chinese air pollution control, the growth rate of market capacity will continue to maintain of around 10%. Statistics show that, in 2015 China's air pollution control industry scale was over 130 billion RMB, of which about 18.7 billion RMB belongs to desulfurization industrial, the scale of denitration industrial was about 75 billion RMB, industrial scale of dust removal was about 430 billion RMB. In 2014, the thermal power industry desulfurization market size was 168 billion RMB, building materials, chemicals, nonferrous metals, petrochemical, and other non-thermal power desulphurization industry market size was about 54 billion RMB.

 

Judging from the emission source of sulfur, China mainly emissions the sulfur dioxide, "2015--2020 of China desulphurization industry market supply and demand forecasting and market special research report" showed that the Chinese sulfur dioxide emissions was 20.439 million tons, which reduced by 3.5% compared to the previous year. At present, the desulphurization business is mainly directly expanded to the industries of thermal power plants, steel and cement ect.. China currently has nearly 80% of the electric power is coming from thermal power which takes coal as the raw material, large amounts of harmful gases (such as sulfur dioxide, nitrogen oxides, etc.) discharged into the atmosphere through the chimney, causing the pollution of the surrounding environment, resulting in human respiratory diseases and crop failures, etc. .

 

Desulfurization and denitrification technology is the best way now available to effectively control sulfur dioxide and nitrogen oxides and other harmful gases, in which desulfurization catalyst is used as a core technology in desulfurization technology. The surface of tungsten trioxide desulfurization catalyst has tension, which can reduce the surface tension of the limestone slurry and the radius of the critical nucleus, thereby strengthening the bisulfite to be oxidized and to precipitate gypsum, thus to realize reducing emissions. Hydrodesulfurization catalyst is presently the most widely used in this industry, which is added the mainly active components of tungsten trioxide, cobalt oxide ect., and aluminum oxide as the carriers, and then prepared by drying and calcining; it plays an extremely important role in industrial gas desulfurization, diesel cracking, gasoline hydrotreating and other areas, therefore, tungsten trioxide catalyst desulfurization market will continue to expand.