How to choose sulfur removal agents? What are the characteristics?

A sulfur removal agent is a chemical substance used to remove sulfides from fuel. During fuel combustion, sulfides generate sulfur dioxide (SO2), which is a harmful gas that poses great harm to both human health and the environment. Therefore, using sulfur removal agents for desulfurization treatment is very important.

The selection of sulfur removal agents mainly depends on the following factors: fuel type, desulfurization efficiency, operating conditions, economy, and environmental friendliness. When selecting sulfur removal agents, the following characteristics and requirements also need to be considered:

1. Safety: The sulfur removal agent should have good safety performance and not cause harm to personnel and the environment. Therefore, when selecting sulfur removal agents, it is necessary to ensure that they have low toxicity, are harmless to human health, and do not produce harmful gases or waste during the treatment process.

2. Economy: Sulfur removal agents should have lower costs and be able to maintain lower maintenance costs during long-term use. In addition, the service life of sulfur removal agents should be long enough to reduce the frequency of replacement and replenishment, and lower operating costs.

3. Feasibility: Sulfur removal agents should be suitable for different types of fuels, including coal, oil, and natural gas. Meanwhile, the sulfur removal agent should be able to work stably under various operating conditions, such as different temperatures, pressures, and humidity.

4. Environmental friendliness: Sulfur removal agents should have good environmental friendliness and not cause pollution to the atmosphere and water bodies. When selecting sulfur removal agents, it is necessary to ensure that they do not produce harmful by-products during the treatment process and can meet national and local emission standards.

Based on the above characteristics and requirements, the commonly used sulfur removal agents currently include limestone desulfurization, island desulfurization agents, sulfuric acid, ammonia water, etc. The following is a brief introduction to the characteristics and applicability of various sulfur removal agents:

1. Limestone desulfurization: Limestone is a common sulfur removal agent that can be treated for desulfurization through methods such as gypsum and cement. Limestone desulfurization has the characteristics of economy and safety, and is suitable for industries such as coal-fired power plants and petrochemicals.

2. Island desulfurizer: Island desulfurizer is a sulfur removal agent prepared from seaweed as raw material, which has the characteristics of environmental protection and safety. Island desulfurizers are suitable for industries such as coal-fired power plants, steel plants, cement plants, etc.

3. Sulfuric acid: Sulfuric acid is a common sulfur removal agent that can react with SO2 to generate sulfate, achieving desulfurization effect. Sulfuric acid desulfurization has the characteristics of economy and reliability, and is suitable for industries such as coal-fired power plants and petrochemicals.

4. Ammonia water: Ammonia water is a commonly used sulfur removal agent that can react with SO2 to generate ammonium sulfate, achieving desulfurization effect. Ammonia desulfurization has the characteristics of environmental protection and safety, and is suitable for industries such as coal-fired power plants and petrochemicals.

The selection of sulfur removal agents should be evaluated based on specific combustion equipment and operating conditions. It is necessary to comprehensively consider factors such as sulfur removal efficiency, safety, economy, and environmental friendliness, select suitable sulfur removal agents, and ensure that they can meet national and local emission standards. During the use of sulfur removal agents, it is also necessary to pay attention to appropriate storage and transportation methods to ensure their stable quality and safe use. At the same time, the effectiveness of sulfur removal agents should be regularly tested and evaluated, and adjustments and optimizations should be made in a timely manner to achieve better desulfurization results.