China Boqi has rich experience on  desulfurization projects. We can provide various modes of services, including  design, technology consultation and services, EPC and operation and maintenance. We provide  SO₂ emissions control and the FDG services to some of the state-owned  and leading local enterprises in the power generation industry in the PRC,  including five national power groups. According to Frost & Sullivan  Statistics, in the terms of cumulative installed capacity as of December 31,  2016, we are the first largest independent flue gas desulfurization EPC projects  service provider for coal-fired power plants in the PRC; in terms of cumulative  capacity in operation as of December 31,2016, we are the third largest  independent flue gas desulfurization concession operation service provider for  coal-fired power plants in the PRC and rank seventh among flue gas  desulfurization concession operation service providers for coal-fired power  plants. Our desulfurization business is conducted through EPC projects and in  accordance with concession operation model. We have designed and built multiple  projects with significant importance to the industry.

Leveraging our experience accumulated  in desulfurization EPC projects and desulfurization operation and concession  projects, we have obtained expertise and maintained a team of professional  technicians extensively experienced in all aspects of the FGD process from the  design, construction and installation and testing of appliances and relevant  facilities to equipment procurement and construction. Our flue gas treatment  technology has been granted 32 patents (four of them are integrated  denitrification and desulfurization technology). We have developed a variety of  FGD processes which are suitable for power plants with different operating  conditions, including Limestone-gypsum WFGD, Seawater desulfurization, ammonia  desulfurization and dry (semi-dry) desulfurization.

By using the  alkalinity of seawater to treat flue gas, seawater desulfurization includes flue  gas system, absorbing tower system and seawater supplying and recovery system.  

Features:    Suitable for power plants  located at coastal areas with

                   easy access to seawater;

                              No absorbent,  desulfurization by-product or secondary

                         pollution.

Ammonia desulfurization is using  ammonia to absorb SO₂. With 95% desulfurization efficiency, this  technology can be used in any types of coal.

Features:     Producing by-product  ammonium sulfate, which can be

                   used as a nitrogenous  fertilizer;

                              Suitable for the power plants located  in dry areas such

                         as the northeastern provinces in  China.

Dry desulfurization  is using powder adsorbent and catalyst to remove SO₂. Semi-dry  desulfurization is using adsorbent containing calcium oxide and calcium  hydroxide to remove SO₂.

Features:    Occupies limited area,  simple system, low investment

                   and low operating cost, suitable for small to  medium

                   sized power plants;

                              Dry end-products and convenient for  transportation,

                        recyclable  with economic  benefits.