“Using discarded ammonia, which is used in flue gas desulphurization, not only makes the waste ammonia water consumed in the desulfurization process, but also generates new ammonium sulfate fertilizer products after these wastes and sulfur are condensed. The operation cost of desulphurization is close to 'zero'. This is the objective assessment given by Xu Junsheng, general manager of Jiangnan Environmental Protection Co., Ltd., when he introduced the 12 domestic ammonia desulfurization projects that have been completed. Relying on the advantages of waste pollution control and zero cost Break the pattern of "limestone-gypsum law" dominating the world Relying on the advantages of “using waste to treat waste†and running the “zero†cost of desulfurization, environmental protection and power industry personnel began to take a look at the ammonia process desulfurization technology. At present, in China's flue gas desulfurization market, due to the sudden emergence of ammonia desulfurization, the pattern of "limestone-gypsum law" dominates the world has been quickly broken. According to the latest rankings of domestic flue gas desulphurization companies, among the top 30 domestic companies, Jiangsu Jiangnan Environmental Protection Co., Ltd., which uses ammonia desulphurization to fight the market, has now succeeded. According to reports, in recent years, China's thermal power plant flue gas desulphurization, basically relying on the introduction of limestone - gypsum method from abroad, but this technology has a large investment, high energy consumption, the system is easy to fouling and other restrictions, especially desulfurization The resulting gypsum can cause secondary pollution. At the same time, US GE, LurgiLentjes of Germany, and Ebara of Japan have begun research and application of more advanced ammonia desulfurization technologies. After having mastered the trend of domestic and foreign flue gas desulphurization, Jiangnan Environmental Protection Company has made its own choice - resolutely, relying on independent innovation to develop its own ammonia desulfurization technology. Because ammonia desulfurization uses ammonia as an absorbent, high-value-added ammonium sulfate fertilizers are more environmentally friendly and more cost-effective than limestone-gypsum methods. To this end, Jiangnan Environmental Protection Company has raised more than 30 million yuan of its own funds to carry out basic, forward-looking research and experimental research on ammonia desulfurization. Later, the TS/PS ammonia desulphurization and denitrification device independently developed by Jiangnan Environmental Protection Company was included in the Jiangsu Torch Project and won the “high-tech product†of Jiangsu Province. Later, they were informed that East China University of Technology's "resources for flue gas desulphurization technology" was included in the National "Tenth Five-Year Plan" 863 Plan. This research project coincided with the research and development of Jiangnan Environmental Protection Co., Ltd. and they immediately signed the agreement. Cooperation agreement. Why Yunnan Decomposition Group is willing to use ammonia desulfurization Create a new model that is both pollution control and fertilizer production Then, Jiangnan Environmental Protection Company and the Tianjin Soda Plant signed a total contract for a 50,000 kilowatt-unit ammonia process desulfurization unit. They used the Tianjin Soda Plant's 50,000-kilowatt generating unit project as the experimental platform for the research project of the 863 Program, and began to improve the ammonia process desulfurization technology and conduct pilot tests. After nearly one year of construction, this project has quickly completed the ammonia desulphurization demonstration project and put into operation. All the indicators have met the design requirements and passed the acceptance of Tianjin Environmental Protection Bureau. Then, it passed the inspection and acceptance of the 863 plan of the Ministry of Science and Technology. Ammonia desulfurization technology began to embark on China's flue gas desulfurization market. As a large-scale chemical fertilizer production enterprise in China, Yunnan Xiehua Group produces both excessive sulfur dioxide and high concentration of waste ammonia. After learning that Jiangnan Environmental Protection has ammonia desulfurization technology, it is determined to rely on ammonia desulfurization technology. Using waste ammonia produced by the Group, the Group's four 75 to 130 tons of large-scale coal-fired boilers are subject to flue gas desulfurization. Xiehua Group raised funds in various ways, timely implemented a special fund of more than 20 million yuan in flue gas desulfurization, and began to use ammonia process desulfurization technology to carry out flue gas desulfurization for four boilers. When the ammonia solution desulphurization project of Yunnan Jiehua Group was completed and put into operation, it quickly demonstrated the vitality of this new technology: the Group will produce 200,000 tons of waste ammonia water every year and it will be saved after it is directly used for flue gas desulfurization. 3 million yuan for water pollution treatment costs. After the new ammonia desulphurization device is put into operation, it not only achieves stable emission of sulfur dioxide, but also reduces 18,000 tons of sulfur dioxide a year, and it can directly produce 35,000 tons of ammonium sulfate fertilizer products each year. The annual new economic benefits are up to 32 million. yuan. In addition, after reaching the discharge standard, it is also possible to exempt the excess sewage charges of RMB 4.5 million, which not only successfully achieves the “zero†cost of desulfurization, but also achieves considerable economic benefits. Henan Sanmenxia Asia Energy Tianyuan Power Generation Co., Ltd. is a Hong Kong investment and construction power company with two 50-kilowatt generating units. As Henan Province is located in a high-sulfur coal producing area, the coal-fired sulfur used by the sub-energy generation company in Tianeng can reach as high as 3%. In order to effectively control the total amount of sulfur dioxide emissions, Yaneng Tianyuan Power Generation Co., Ltd., for domestic, openly invited the bidding of flue gas desulphurization projects, and soon attracted many domestic environmental protection companies to bid. Jiangnan Environmental Protection Company won the bid with ammonia desulfurization in one fell swoop. The 3% high-sulfur coal used by Asia Energy Tianyuan Power Generation Co., Ltd. is a good opportunity for Jiangnan Environmental Protection's innovative technology to “make its ownâ€. As a result, Jiangnan Environmental Protection quickly built two sets of desulfurization systems and a set of by-product recycling systems for Tianeng Power Generation Corporation. One year of sulfur dioxide removal of 13,000 tons, the production of ammonium sulfate 25,000 tons of high-quality fertilizer, another desulfurization run "zero" cost of the proud work. Subsequently, Jiangnan Environmental Protection Company successively undertook flue gas desulfurization of more than 10 key projects such as two circulating fluidized bed boilers of Chongqing Zhongliangshan Coal Electric Co., Ltd. and two 240t/h boilers of Sinopec Hubei Chemical Fertilizer Plant and one 220t/h boiler. The project successfully constructed a series of “waste ammonia—desulfurization—ammonium sulphate fertilizer†and so on, which is both a new model for pollution control and desulfurization as well as a fertilizer production line. What is of particular concern is that Yunnan Jiehua Group Co., Ltd. has applied the ammonia process desulfurization technology to build the first and second stage desulfurization systems, and tasted the sweetness of “waste ammonia—desulfurization—ammonium sulfate fertilizerâ€, and now it decisively started. For the third phase of the flue gas desulphurization project with three 75 t/h and one 130 t/h boilers, the four boilers of the group will jointly build a flue gas desulfurization system, whether it is the consumption of “waste and waste†waste ammonia, or Ammonium sulfate fertilizer produced every day will obviously increase, and the economic benefits obtained will also be very attractive. 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