Wet desulfurization product introduction
Wet desulfurization is the most widely used and most efficient flue gas desulfurization technology in the world. It is particularly suitable for large coal-fired power plants, steel plants, cement plants, chemical plants and other places with high SO₂ emission concentration and large emission volume.
★Principle introduction:
Wet desulfurization uses alkaline absorption liquid (such as limestone slurry, lime water, ammonia water, etc.) to react with sulfur dioxide (SO₂) in flue gas to generate sulfite or sulfate (such as CaSO₄·2H₂O, i.e. gypsum) to achieve the purpose of desulfurization.
The most common process is:
Limestone-Gypsum FGD
★Product features
1. High desulfurization efficiency
The desulfurization efficiency can reach 95%~99%, which is suitable for places with strict environmental protection standards.
2. Mature and stable, widely used
With mature technology and many engineering cases, it is the mainstream desulfurization process recommended by the country and is widely used in large coal-fired power plants and industrial furnaces.
3. By-products can be recycled
The by-products generated by the reaction are mainly gypsum (CaSO₄·2H₂O), which can be used in building materials (such as gypsum board, cement retarder, etc.), realizing the resource utilization of by-products.
4. Adapt to high-concentration SO₂ flue gas
Especially suitable for occasions with high SO₂ concentration in flue gas (>1000mg/Nm³).
5. Large equipment volume and high investment
It is necessary to build an absorption tower, slurry circulation system, limestone slurry system, dehydration system, etc., and the initial investment and operating costs are relatively high.
6. There is a problem of wastewater discharge
The absorption liquid needs to be discharged regularly, generating salt-containing wastewater, which requires a supporting wastewater treatment system, and the treatment cost is high.
7. Complex system and high operation requirements
The operation process involves slurry transportation, stirring, scaling control and other issues, and the equipment maintenance and management requirements are high.
★Common wet desulfurization process comparison
Process type Absorbent Desulfurization efficiency Byproduct Application range
Limestone-gypsum process Limestone slurry 95~99% Gypsum Thermal power plant, metallurgy
Ammonia desulfurization Ammonia water 95% or more Ammonium sulfate fertilizer Fertilizer plant, coking plant
Seawater desulfurization Seawater 90% or more No solid byproduct Coastal power plant
★Summary: Dry vs wet process comparison
Project Dry desulfurization Wet desulfurization
Desulfurization efficiency 70~90% 95~99%
Low investment cost High
Byproduct treatment Powder type Recyclable gypsum
Environmental protection No wastewater There is wastewater to be treated
Application scale Small and medium-sized enterprises Large power plants, heavy industry

★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.