Selective low-temperature oxidation denitrification technology uses ozone oxidation to denitrify. Its basic principle is mainly: using the strong oxidizing property of ozone to oxidize insoluble low-valent ammonia oxides into soluble high-valent nitrogen oxides, and then absorbing the ammonia oxides in the scrubber to achieve the purpose of removal.
Under low temperature conditions, the key reaction between O and NO is as follows:

Compared with other chemical substances in the gas phase, such as CO, SOx, etc., NOx can be quickly oxidized by gas, which makes the ozone oxidation of NOx highly selective. Because NOx in the gas phase is converted into ionic compounds soluble in aqueous solution, the oxidation reaction is more complete, thereby irreversibly removing NOX without generating secondary pollution. After the oxidation reaction, the added ozone is consumed by the reaction, and the excess ozone can be decomposed in the spray tower. In addition to NOX, some heavy metals, such as mercury and other heavy metal pollutants, are also oxidized by ozone at the same time. High concentrations of dust or solid particles in the flue gas will not affect the removal efficiency of NOx.
Ozone oxidation denitrification can be applied to: utility boilers fueled by coal, coke, and lignite; industrial boilers fueled by gas, coal, and heavy oil; various furnaces for processing and producing lead, iron ore, zinc, copper, glass, and cement; combustion furnaces for treating biological waste, tires, and other industrial wastes: acidic gas streams from acid selection and chemical processes; catalytic cracking tail gas; various municipal and industrial waste incinerators, etc.
The oxidation denitrification process uses highly oxidizing ozone gas to convert NO in the flue gas into water-soluble NOx, and the product is absorbed in the subsequent desulfurization tower. Therefore, the denitrification process does not produce direct by-products.
The denitrification site is mainly divided into two parts: the ozone preparation area and the oxidation area. The location of the oxygen preparation area can be determined based on the owner's plan and comprehensive consideration of the site conditions. In the oxidation area, the flue after the outlet of the desulfurization tower is modified and a gas distribution device is installed in the flue.

★Company Introduction

Yancheng Hongcheng Chaoyu Environmental Protection Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, sales, installation, commissioning and service of environmental protection and energy-saving equipment such as atmospheric environment treatment, waste gas treatment and sewage treatment. It is a well-known domestic manufacturer, system integrator and general contractor of dust removal, desulfurization and denitrification, ultra-low emission, waste gas treatment and sewage treatment equipment. The various types of dust removal equipment, desulfurization and denitrification equipment, sewage treatment and other environmental protection and energy-saving equipment produced by the company are advanced in technology and reliable in quality. They are widely used in thermal power, coking, garbage power generation, chemical industry, papermaking, steel, metallurgy, carbon, glass, cement building materials and other industries. The products are sold to more than 20 provinces and cities across the country and have been widely praised by customers.

★Factory Appearance

★FAQ

Q. How high is the dust removal efficiency of bag filters?
A. The dust removal efficiency can generally reach more than 99%, and can effectively filter fine dust above 0.3 microns.

Q. Can bag filter handle high temperature gas?
A. It can handle high temperature gas up to about 250℃. It needs to use high temperature resistant filter material and control the temperature and humidity of the gas.

Q. How to extend the service life of bag filter?
A. Choose appropriate filter material, clean dust on time, avoid high temperature shock and dust blockage, and perform regular inspection and maintenance.