Mercury Removal Activated Carbon for Catalyst Support Applications

What Is Mercury Removal Activated Carbon?

Mercury removal activated carbon is a specialized adsorbent designed to capture and immobilize elemental and oxidized mercury from industrial gas streams. It works through a combination of physical adsorption and chemical reaction, making it highly effective in fixed-bed catalyst support systems.

Activated carbon mercury adsorption leverages the material's vast internal surface area (often exceeding 1000 m²/g) and tailored pore structure to trap mercury molecules. In catalyst support applications, impregnated activated carbon further enhances performance by chemically binding mercury into stable, non-volatile compounds. This dual mechanism ensures superior removal efficiency even at low mercury concentrations typical in flue gas and process gas streams.

There are currently two primary forms of mercury removal activated carbon:

Sulfur-loaded mercury-removing activated carbon: This type is widely used in the oil and gas industry for trace mercury removal from natural gas, refinery gases, and petrochemical streams. The sulfur impregnation enables strong chemical bonding with mercury, forming stable HgS.

Coal-fired flue gas mercury removal activated carbon: Optimized for power plants and other combustion processes, this variant excels at removing mercury from large-volume, complex flue gas streams containing fly ash, SO₂, and other contaminants.

As a leading activated carbon manufacturer in China, YICARB produces various grades of mercury removal activated carbon to meet the exacting requirements of catalyst support fixed-bed systems across global industries.

Mercury Removal Mechanism of Activated Carbon in Catalyst Support Systems

The effectiveness of mercury removal activated carbon in catalyst support systems stems from three synergistic processes:

Physical Adsorption

Mercury vapor molecules are attracted to the extensive microporous surface of the activated carbon through van der Waals forces. The optimized pore size distribution maximizes contact and retention.

Chemical Reaction (Impregnation Technology)

Sulfur-impregnated activated carbon reacts with mercury to form stable mercuric sulfide (Hg + S → HgS). This non-volatile compound remains securely bound on the carbon surface, preventing re-release even under varying temperature and flow conditions.

Fixed-Bed Catalyst Support Adsorption

In fixed-bed configurations, gas streams pass through a deep bed of activated carbon pellets or honeycomb structures, providing extended contact time essential for high removal rates. This setup is ideal for continuous industrial operations requiring consistent mercury control.

Why Catalyst Support Systems Use Activated Carbon for Mercury Removal

Catalyst support systems demand reliable, high-efficiency mercury removal that injection-based methods often cannot achieve. YICARB's mercury removal activated carbon offers distinct advantages:

Longer Contact Time — Fixed-bed systems allow significantly longer gas-carbon interaction compared to powdered activated carbon (PAC) injection, resulting in higher overall adsorption efficiency.

Superior Stability — Ideal for maintaining low outlet mercury levels in continuous processes.

Lower Pressure Drop — Especially with pelletized and honeycomb forms, ensuring energy-efficient operation.

Versatility in Harsh Conditions — Performs reliably across a wide temperature range and in the presence of other contaminants common in industrial gases.

These features make mercury removal activated carbon systems the preferred choice for industrial mercury adsorption where precision and operational continuity are critical.

Types of Activated Carbon for Catalyst Support Mercury Removal

As a professional Chinese manufacturer, YICARB offers a comprehensive range of activated carbon tailored for mercury removal in catalyst support applications:

Impregnated Coal Based Activated Carbon

Our flagship impregnated activated carbon product is designed for mercury removal in catalyst support systems. High sulfur impregnation enables strong chemical adsorption performance, effectively capturing elemental mercury and converting it into stable HgS. It delivers reliable efficiency in flue gas treatment and a wide range of industrial gas purification applications.

Coal Based Column Crushed Activated Carbon

A robust and cost-effective option for high-flow fixed-bed mercury removal systems. Its irregular particle shape provides excellent mechanical strength and good adsorption capacity, making it suitable for large-scale industrial gas purification in power plants and steel mills.

Coal Based Granular Activated Carbon

This pelletized activated carbon is specifically engineered for fixed-bed catalyst support systems. The cylindrical pellet shape provides low pressure drop, excellent mechanical strength, and stable long-term operation. It is ideal for continuous mercury removal processes requiring uniform flow distribution.

Coal Based Pelletized Activated Carbon

Specifically engineered for fixed-bed catalyst support systems. The cylindrical pellet shape provides low pressure drop, excellent mechanical strength, and stable long-term operation. Perfect for continuous mercury removal processes requiring uniform flow distribution.

Coal Based Acid Washed Pelletized Activated Carbon

High-purity grade with low ash content, ideal for sensitive catalyst support applications. Acid washing enhances purity and reduces interference from impurities, delivering superior performance in trace mercury removal and protecting downstream catalysts.

Coconut Shell Based Granular Activated Carbon

Premium high-hardness activated carbon with well-developed microporous structure. It excels in trace mercury removal, especially in oil & gas and petrochemical industries, offering high adsorption efficiency and excellent durability.

Acid Washed Coconut Shell Based Granular Activated Carbon

Ultra-high purity acid washed coconut shell activated carbon with minimal ash and impurities. This grade is particularly recommended for demanding mercury removal applications in natural gas processing and high-end catalyst support systems where cleanliness is critical.

Coconut Shell Based Pelletized Activated Carbon

Combines the superior micropore volume and hardness of coconut shell with the low pressure drop advantages of pellet form. It is an excellent choice for fixed-bed mercury removal systems requiring high efficiency and extended service life.

All products are manufactured under strict quality control at YICARB's advanced facilities in China. Explore our full product range on the respective detail pages or contact our technical team for application-specific recommendations and custom sulfur impregnation options.

Need a tailored solution for your mercury removal system? Contact us to discuss your application.

Contact Our Mercury Removal Experts