Universal Catalyst Euro 4/5/6 Honeycomb Ceramic/Metal for Auto Exhaust Purification

Universal Catalyst Euro 4/5/6

The universal catalyst substrates are coated by formulated washcoat. At the same time, we improve the specific surface areas and cut down the heat capacity to increase the catalytic function. When the noxious emissions pass through, HC, CO and NOX will be converted into harmless components.

The necessary property of honeycomb ceramic catalyst substrate used in cars as follows:

1. High specific surface area: ensure exhaust gas could contact weigh catalyst enough.

2. Stable water absorption: guarantee catalyst could be firmly and evenly coated on the surface of substrate, so it's no waste for too thick coating.

3. Warm up characters: after starting up engine, the temperature of substrate could reach the active temperature of catalyst in the shortest time.

4. Low exhaust resistance: ask exhaust resistance of substrate to engine low, so that it won’t affect the performance of engine.

5. High intensity: substrates work in bumpy cars, so the intensity of substrates must be too high to be destroyed.

6. Perfect assembly: substrates are parts of exhaust; perfect appearance and exact dimension could ensure assembly perfect.

EU emission standards are summarized in the following tables. All dates listed in the tables refer to new type approvals. The EC Directives also specify a second date—one year later, unless indicated otherwise—which applies to first registration (entry into service) of existing, previously type-approved vehicle models.

Catalysts for Gasoline Engine

TWC: Three-Way Catalyst

cGPF: Catalyzed Gasoline Particulate Filter

Catalysts for Diesel Engine

LNT: Lean NO_x Trap Catalyst

DOC: Diesel oxidation Catalyst

POC: Diesel Particulate Oxidation Catalyst

cDPF: Catalyzed Diesel Particulate Filter

SCRF: SCR Catalysts Coated on DPF

SCR: Selective Catalytic Reduction Catalyst

ASC: NH₃ Slip Catalyst