【Ten Years of Rapid Development in Chemical Engineering Equipment】1733–2011: China’s First Flue Gas Desulfurization and Denitrification Project Using Streamer Discharge Ammonia Method

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This post was last edited by FishSwimmingInTheDesert on 2024-5-13 at 20:51. Happy May Day 2024! Safety comes first. Let’s give a thumbs up and cheer for the achievements made in China’s chemical technology and equipment industry. ********************** [Ten Years of Great Development in Chemical Equipment] This is a continuously updated summary thread; all are welcome to join the discussion: https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Forum) ***************** On the morning of March 2, 2011, China’s first streamer discharge-based ammonia process project for flue gas desulfurization and denitrification entered the trial production phase at the Power Division of Sinopec Baling Petrochemical Company. The renovation of the desulfurization system for Boiler No. 1 in this division is one of the environmental protection projects under close supervision by Sinopec Group. It employs an improved streamer discharge ammonia-based flue gas desulfurization and denitrification technology for the first time, enabling it to address the challenges associated with conventional ammonia-based methods, such as the oxidation rate of sulfurous acid, ammonia release in the exhaust gases, carryover of ammonium sulfate, and aerosol acid mist. At the same time, it enhances the integrated denitrification capacity. On March 20, 2011, the desulfurization system of Boiler No. 1 in the Power Division of Baling Petrochemical completed 168 hours of continuous trial operation. Thus, the country’s first project to use the glow-discharge ammonia method for flue gas desulfurization and denitrification was officially put into operation. The desulfurization unit of Boiler No. 1 in the Power Division utilizes an improved streamer discharge ammonia-based flue gas desulfurization and denitrification technology. This technology effectively addresses the key challenges associated with conventional ammonia-based methods, such as the oxidation rate of sulfurous acid, ammonia emission in the exhaust gases, carryover of ammonium sulfate, and aerosol acid mist. It also enhances the denitrification capacity, and holds independent intellectual property rights. It is suitable for enterprises in the petrochemical industry that have access to ammonia sources and meets the requirements for desulfurization and denitrification; it is in line with the goals of energy conservation, emission reduction, and the development of a low-carbon, circular economy. 　　To build, operate stably, and run new projects successfully, the Power Division of Baling Petrochemical established a desulfurization workshop. In the absence of established technologies to ensure success, the technical staff from the division worked together with the design and R&D personnel from the manufacturers to overcome difficulties, continuously adjusting the processes and installations to meet the design requirements. 　　The desulfurization project for Boiler No. 1 began at the beginning of this year, and the trial production run was a success. The concentration of the thiamine solution produced on March 13 reached the design upper limit of 35%–38%. According to tests conducted by the Hunan Provincial Environmental Protection Bureau, the sulfur dioxide content in the flue gas was 10 milligrams per standard cubic meter, which is lower than the designed level of 100 milligrams per standard cubic meter, and far below the **standard of 400 milligrams per standard cubic meter. Once this facility is put into operation, the amount of sulfur dioxide emitted by the Power Division on a daily basis will drop from 7,776 kilograms to 64.8 kilograms, representing a reduction of 99.2%.