Activated Carbon for Mercury Removal is a material specifically designed to remove mercury from gases. It is made from high-quality activated carbon using a special process to produce sulfur-containing activated carbon. The following is a detailed introduction to mercury-removing activated carbon:
I. Definition and Principle
Activated Carbon for Mercury Removal uses high-quality coconut shell columnar activated carbon, coconut shell granular activated carbon, etc., as its base material, and undergoes special treatment to contain a certain amount of sulfur. When mercury-containing gas passes through the mercury-removing activated carbon, the mercury reacts chemically with the sulfur to form mercuric sulfide (HgS), which is then fixed in the pore structure of the activated carbon, achieving the purpose of gas purification.
II. Application Areas
Activated Carbon for Mercury Removal is widely used in the treatment of gases containing trace amounts of the harmful element mercury, such as natural gas, coal gas, coking gas, and coke oven gas. Because mercury is highly volatile, highly toxic, and highly corrosive, and can easily poison catalysts, mercury-removing activated carbon plays an important role in protecting personal safety and the environment. Furthermore, it is particularly suitable for treating low-concentration mercury-containing gases that are difficult to remove by other methods, ensuring that gas emissions meet relevant national or regional standards.
III. Main Technical Indicators
The main technical indicators of Activated Carbon for Mercury Removal include moisture content, strength, packing density, pH value, water capacity, saturated sulfur capacity, and particle size distribution. These indicators directly affect its adsorption performance and service life. For example, high-strength and high-packing-density mercury-removing activated carbon can withstand higher airflow impacts and pressure fluctuations; while a high saturated sulfur capacity means it can adsorb more mercury, thus extending its service life.
IV. Physical Structural Characteristics
Activated Carbon for Mercury Removal has a well-developed pore structure and a large specific surface area, which is the basis for its excellent adsorption performance. Its pores are divided into three categories: macropores, mesopores, and micropores. These pores are interconnected to form a dendritic structure, which is conducive to the diffusion and adsorption of mercury vapor. At the same time, the functional groups on the surface of activated carbon also have an important influence on its adsorption performance.
V. Preparation Methods
There are various methods for preparing Activated Carbon for Mercury Removal, but the basic principles are similar. It usually includes steps such as raw material selection, crushing and screening, carbonization and activation, and sulfur loading treatment. Sulfur loading is a key step in the process; controlling the sulfur loading amount and method can optimize the performance and effectiveness of mercury-removing activated carbon.
VI. Precautions for Use
When using Activated Carbon for Mercury Removal, the following points should be noted: First, select the appropriate model and specifications based on the actual gas composition and processing volume; second, regularly test the mercury removal efficiency and service life to ensure timely replacement; finally, prevent the activated carbon from getting damp and undergoing high-temperature oxidation to avoid affecting its adsorption performance and service life.
In conclusion, Activated Carbon for Mercury Removal is a highly efficient and environmentally friendly gas purification material, widely used and playing an important role in many fields. With continuous technological advancements and expanding application areas, its market prospects are expected to be even broader.
