White Honeycomb Ceramic Catalysts Carriers 51% SiO2 For Gasoline Purification

Ceramic catalysts carriers

for purification of gasoline and diesel automobile engines exhaust

A catalyst is a substance that accelerates the course of a chemical reaction without undergoing an irreversible change. Catalysts are important not only for the chemical industry, but also for solving environmental problems.

Ceramic structures with a high specific surface are used as carriers for catalysts. The high specific surface should be preserved after long-term use, as well as geometry and mechanical properties, which implies the carrier’s resistance to thermal and mechanical stresses and to chemical destruction.

Physical and Chemical Properties

Ceramic catalysts carriers are usually used:

• for purification of gasoline and diesel automobile engines exhaust;

• for chemical and petroleum refining processes;

• for cleaning emissions of power plants and other industrial enterprises.

The main requirements for catalyst carriers include a large surface area, heat resistance, porosity, chemical inertness, mechanical strength.

Ceramic and metal carriers compete with each other: ceramics are often more stable and more economical, and therefore dominate in most sectors. Metal is sometimes preferable because of greater mechanical strength and the ability to manufacture catalysts of a certain geometry using wire, foil or thin-wall honeycomb structures.

Product Characteristics

● Large specific surface area: to ensure full access to the exhaust gas with the catalyst.

● Stable water absorption: to ensure the catalyst evenly firmly attached to the surface of the catalyst carrier.

● Warm-up: after start-up the engine, the temperature of the carrier can reach the catalyst activation temperature in the shortest possible time.

● Low exhaust resistance: the engine’s exhaust resistance is small, to ensure that doesn’t affect the engine performance.

● High strength: the operating environment of the catalyst carrier is in the bumpy car, so the catalyst carrier must be high strength without being external damage.

● Good assembly: the carrier is an exhaust assembly parts, only good appearance and precise dimensions can ensure perfect assembly.