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Industrial flue gas desulfurization

SNCR (selective non-catalytic reduction) flue gas denitration technology is an effective control measure for flue gas containing nitrogen oxides (NOx) after combustion. This technology is mainly used in coal-fired boilers of thermal power plants. The NOx in the treated flue gas is mainly composed of nitric oxide (NO) and nitrogen dioxide (NO2), of which NO accounts for about 95% of the total NOx emissions (volume concentration), while NO2 accounts for 5% (volume concentration).
The core of SNCR technology is the use of ammonia (NH3) or urea as a reducing agent, which selectively reacts with NOx in a high-temperature environment. The reaction usually takes place in the furnace temperature range of 850 to 1100°C, so it is crucial to ensure effective injection of the reducing agent and good temperature control. In this way, SNCR technology can significantly reduce NOx emissions, improve combustion efficiency, and comply with increasingly stringent environmental standards.

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  • Industrial flue gas desulfurization
    Industrial flue gas desulfurization

    SNCR (selective non-catalytic reduction) flue gas denitration technology is an effective control measure for flue gas containing nitrogen oxides (NOx) after combustion. This technology is mainly used in coal-fired boilers of thermal power plants. The NOx in the treated flue gas is mainly composed of nitric oxide (NO) and nitrogen dioxide (NO2), of which NO accounts for about 95% of the total NOx emissions (volume concentration), while NO2 accounts for 5% (volume concentration).The core of SNCR technology is the use of ammonia (NH3) or urea as a reducing agent, which selectively reacts with NOx in a high-temperature environment. The reaction usually takes place in the furnace temperature range of 850 to 1100°C, so it is crucial to ensure effective injection of the reducing agent and good temperature control. In this way, SNCR technology can significantly reduce NOx emissions, improve combustion efficiency, and comply with increasingly stringent environmental standards.

  • Industrial flue gas desulfurization and denitrification
    Industrial flue gas desulfurization and denitrification

    Selective catalytic reduction (SCR) technology is an important means of controlling nitrogen oxide (NOx) emissions produced during the combustion process and is widely used in coal-fired boilers in thermal power plants. This technology effectively reduces the concentration of nitrogen oxides in flue gas, mainly targeting nitric oxide (NO) and nitrogen dioxide (NO2). Nitric oxide accounts for 95% of total NOx emissions, and nitrogen dioxide accounts for 5%.The core principle of SCR is to use a catalyst to reduce NO and NO2 to harmless nitrogen (N2) at a relatively low temperature using ammonia (NH3) as a reducing agent. This process is carried out under the action of a catalyst, which significantly improves the selectivity of nitrogen and effectively reduces the consumption of ammonia. When the molar ratio of NH3 to NOx reaches 1, the removal rate of NOx can be as high as 90%, while the amount of ammonia escape is controlled below 3mg/L.In practical applications, the operating conditions of the SCR system should be dynamically adjusted based on factors such as flue gas composition, temperature, and flow rate. Through real-time monitoring of flue gas components, the amount of reductant injection can be automatically adjusted to ensure that NOx emissions always meet regulatory requirements.

  • Industrial flue gas denitrification
    Industrial flue gas denitrification

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    The wet ESP is composed of two parts: the electrical equipment supplying high voltage direct current and the body of the ESP. The main structure of a wet electrostatic precipitator can be divided into the shell, gas distribution device, corona pole, precipitation pole, and washing device according to the function of each part structure. Wet electrostatic precipitator is mainly used in electric power, iron and steel, petrochemical, pharmaceutical, mining, textile and so on. it has good corrosion resistance, a convenient cleaning effect, no secondary dust, high efficiency of mist removal, and solves the problems of "gypsum rain" ammonia escape and aerosol.

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About SHENJIANG
Jiangsu Shenjiang Environmental Technology Co., Ltd.
Jiangsu Shenjiang Environmental Technology Co., Ltd.

Established in 1996, Jiangsu Shenjiang Environmental Technology Co., Ltd. is a professional China Industrial flue gas desulfurization Manufacturers and Industrial flue gas desulfurization Factory.And is nestled in the picturesque city of Yancheng, Jiangsu Province, known for its moniker "Land of Water and Fish-Rice." The company specializes in designing, developing, manufacturing, and installing complete sets of waste gas treatment equipment and resin-based composite material products. Adhering to the principle of "market orientation and technological innovation," we have been steadfast in scientific and technological innovation, ensuring the company's sustained and stable growth. Our team comprises 218 dedicated employees, including 35 professional technicians, and we are equipped with over 100 advanced testing and production machines. Our R&D center spans 3,000 square meters, while our factory buildings, office buildings, and business buildings cover an area of 35,000 square meters. With a registered capital of 101.6 million yuan and total assets amounting to 154 million yuan, we have evolved over two decades through continuous self-innovation, utilizing new materials, technologies, and processes, resulting in a cluster of industries with multiple patents. Shenjiang embraces a diversified and multifaceted approach to industry-academia integration. We adopt an applied training model that combines theoretical research with practical exploration, establishing long-term cooperative relationships with esteemed institutions like Southeast University, University of Shanghai for Science and Technology, Xi'an Jiaotong University, "China Environmental Protection Equipment Industry Base Technology Research Center," and "Jiangsu Pollution Control and Resource Utilization Engineering Technology Research Center." In addition, we actively promote international scientific and technological cooperation, forging partnerships with countries such as Indonesia, Thailand, Austria, and Singapore. Guided by the business philosophy of "technology, credibility, service, and development," we have developed a range of innovative products including waste gas treatment and recovery systems, desulfurization and denitrification systems, central air conditioning unit systems and fittings, windpipes, resin-based composite pipes, water supply and drainage sandwich pipes, resin-based composite material non-standard equipment and storage tanks, cooling towers, chemical fiber non-standard equipment, cleaning furnace equipment, and painting complete sets of equipment. These new processes are characterized by advanced technology, strong adaptability, simple operation, and low costs. We have filed 40 proprietary technology certifications, with 30 utility granted, 4 inventions, and 7 PCT certificates. Our independently developed waste gas recovery and treatment devices have been listed in the "Jiangsu Province Key Promoted New Technology and New Product Catalog." With a global presence, we have established supply, installation, and sales offices in various locations, including Indonesia, Singapore, Austria, Xinjiang, Fujian, Nanjing, Shandong, and Sichuan. Moreover, we boast professional construction teams specializing in environmental protection, mechanical and electrical, and anti-corrosion and insulation equipment installation. As our enterprise grows, Shenjiang is committed to enhancing its brand influence, rallying together to face challenges, and seeking mutual development for a shared future. We adhere to a people-oriented approach and a development philosophy that emphasizes scientific innovation. With a united front and the determination to overcome difficulties, we maintain our entrepreneurial spirit and unwavering commitment to our founding principles. We strive to create intellectual property for our enterprise, gradually shift focus to our core business, and pursue diversified development. We are constantly upgrading and transforming, targeting the development trends of both domestic and international markets, and aiming to establish new projects and achieve new outcomes. We are dedicated to making a greater contribution to the cause of environmental protection.

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Industry knowledge extension

What are the technologies for industrial flue gas desulfurization?
Limestone-gypsum wet desulfurization technology
Limestone-gypsum wet desulfurization technology is one of the most widely used flue gas desulfurization methods. This technology uses limestone or lime as a desulfurizer to react chemically with sulfur dioxide in the flue gas in a reaction tower to produce calcium sulfate (gypsum). Jiangsu Shenjiang Environmental Technology has mature processes and equipment in this field. The high-efficiency cyclone desulfurization tower it developed significantly improves the desulfurization efficiency and effectively reduces energy consumption and operating costs. In addition, the gypsum by-product produced by this technology has a high value in the market and can be widely used in industries such as construction and cement, promoting the recycling of resources.
Ammonia desulfurization technology
Ammonia desulfurization technology uses ammonia water as a desulfurizer to react with sulfur dioxide in the flue gas to produce ammonium sulfate. This method has high desulfurization efficiency, low energy consumption and stable operation characteristics, and the by-product ammonium sulfate can be used as a fertilizer raw material, which has a good market prospect. Jiangsu Shenjiang Environmental Technology has accumulated rich experience in ammonia desulfurization technology. Its intelligent desulfurization control system can accurately control the desulfurization process to ensure the stability of desulfurization efficiency and by-product quality.
Dry and semi-dry desulfurization technology
A significant advantage of dry and semi-dry desulfurization technology is that it has a low demand for water resources and produces relatively less solid waste, which is suitable for areas with scarce water resources or strict restrictions on wastewater discharge. Jiangsu Shenjiang Environmental Technology has also achieved remarkable results in this field. The spray drying desulfurization technology and circulating fluidized bed desulfurization technology developed by it not only have high desulfurization efficiency, but also effectively reduce operating costs. They have been widely used in many industries.
Technological innovation and application of Jiangsu Shenjiang Environmental Technology
As a leading company in the field of flue gas desulfurization technology, Jiangsu Shenjiang Environmental Technology has always placed technological innovation and product development at the core of the company's development. The company has a research and development team composed of senior engineers and technical experts with strong independent research and development capabilities. In the field of flue gas desulfurization technology, Jiangsu Shenjiang Environmental Technology has obtained a number of patents and technical achievements, providing efficient and reliable solutions for many companies.
Research and development and application of high-efficiency cyclone desulfurization tower
The high-efficiency cyclone desulfurization tower independently developed by Jiangsu Shenjiang Environmental Technology adopts advanced cyclone technology, which significantly improves the desulfurization efficiency and reduces energy consumption and operating costs. The desulfurization tower has been successfully applied in flue gas desulfurization projects in multiple power, steel and chemical industries, bringing good environmental and economic benefits.
Development of intelligent desulfurization control system
With the continuous advancement of intelligent technology, Jiangsu Shenjiang Environmental Technology actively integrates intelligent technology into the field of flue gas desulfurization. The intelligent desulfurization control system developed by the company can accurately control the desulfurization process, including real-time monitoring and adjustment of key parameters such as the dosage of desulfurizer, temperature and humidity in the reaction tower. The application of this technology not only improves the desulfurization efficiency, but also effectively reduces the operation and maintenance costs, further enhancing the market competitiveness of enterprises.
What are the advantages of industrial flue gas desulfurization
High-efficiency desulfurization technology
In the context of increasingly stringent environmental protection regulations today, the application of industrial flue gas desulfurization technology is particularly important. Its core advantage lies in its efficient desulfurization capacity, which can significantly reduce the emission of harmful gases such as sulfur dioxide. Jiangsu Shenjiang Environmental Technology has successfully achieved efficient capture and removal of sulfur dioxide in flue gas with its high-efficiency cyclone desulfurization tower and intelligent desulfurization control system. These advanced technologies not only improve desulfurization efficiency, but also effectively reduce energy consumption and operating costs, helping enterprises to achieve both economic and environmental benefits while complying with environmental protection regulations.
Resource recycling
Flue gas desulfurization technology is not only an effective means of emission reduction, but also an important way to recycle resources. Taking limestone-gypsum wet desulfurization technology as an example, this technology uses limestone or lime as a desulfurizer to react with sulfur dioxide in flue gas to produce calcium sulfate (gypsum). Gypsum, as an important by-product, is widely used in industries such as construction, cement and fertilizer, and has good market prospects. Jiangsu Shenjiang Environmental Technology's innovative practice in this field has enabled its desulfurization projects to not only stably produce high-quality gypsum by-products, but also meet market demand, achieve efficient recycling of resources, and promote sustainable economic development.
Intelligent control
With the rapid development of intelligent technology, industrial flue gas desulfurization systems have also ushered in intelligent upgrades. Jiangsu Shenjiang Environmental Technology is at the forefront of the industry in the development of intelligent desulfurization control systems, which can accurately monitor and adjust the desulfurization process. The system ensures the stability of desulfurization efficiency and by-product quality by real-time monitoring of key parameters such as the dosage of desulfurizer, temperature and humidity in the reaction tower.