Application of Honeycomb Ceramics in Catalysis

The application of honeycomb ceramics in catalysis is one of its most important uses, revolutionizing modern chemical engineering and environmental governance. Simply put, honeycomb ceramics themselves are not catalysts, but rather provide a support for them. They offer a near-perfect physical structure, allowing catalysts to operate efficiently and stably.

Core Application Areas

Automotive Exhaust Purification: The Largest-Scale Application

This is the most well-known application. The core of automotive three-way catalytic converters (TWC) and diesel exhaust aftertreatment systems (DPF, SCR) is the honeycomb ceramic support.

Functions:

Large Surface Area: Its dense honeycomb channels are coated with a catalyst layer containing precious metals such as platinum, palladium, and rhodium, maximizing the conversion of harmful gases (CO, HC, NOx) into harmless CO₂, H₂O, and N₂.

 Low Back Pressure: The parallel, straight-through structure ensures smooth engine exhaust flow without affecting engine power or fuel economy.

Thermal Shock Resistance: It can withstand the drastic temperature changes during cold starts and rapid acceleration in automobiles.

Industrial Stationary Source VOCs Treatment: A Key Environmental Protection Technology

This is precisely the application we discussed in detail earlier. In industries such as chemical, spraying, and printing, honeycomb ceramics are the core of catalytic combustion (CO/RCO) technology.

Functions:

Highly Efficient Purification: After loading with a catalyst, it completely oxidizes and decomposes large volumes of low-concentration VOCs exhaust gases at relatively low temperatures (300-500°C).

Energy Saving: Its structure allows the system to utilize the heat of reaction, significantly reducing operating energy consumption.

Safe and Stable: No open flame reaction; the ceramic matrix is corrosion-resistant and has a long service life.

Industrial Waste Gas Denitrification

In flue gas treatment of coal-fired/coal-fired boilers in power plants, cement plants, and waste incineration plants, honeycomb ceramics serve as a carrier for SCR (Selective Catalytic Reduction) technology.

Functions:

Carrying Active Components: Vanadium-based, tungsten-based, and other catalysts are loaded onto its surface.

Promoting Chemical Reactions: When flue gas (containing NOx) and injected ammonia (NH₃) pass through its pores, a reduction reaction occurs under the action of the catalyst, converting highly toxic NOx into harmless nitrogen (N₂) and water (H₂O).

Other Chemical Processes

In petrochemicals, fertilizer synthesis, and other fields, honeycomb ceramic structured catalysts also show great potential for use in methane reforming, hydrogenation, and dehydrogenation reactions, replacing traditional particulate catalysts to improve reaction efficiency and reduce system pressure drop.

In summary, honeycomb ceramics, through their unique physical structure, maximize the performance of catalysts, making them a cornerstone material for promoting modern environmental catalysis and green chemical engineering. We are a Chinese manufacturer of honeycomb ceramics. For more information, please contact us via email at annayu@169chem.net or WhatsApp at +8618909016373.