Automobile Exhaust Emission Catalyst EU4/5/6 Honeycomb Ceramic/Metal Substrate

Car Exhaust Catalyst

Car Exhaust Catalyst is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC, and NOx discharged from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. When the high-temperature automobile exhaust passes through the purification device, the three-way catalyst will enhance the activity of the three gases CO, HC and NOx, and promote certain oxidation-reduction chemical reactions. Among them, the CO is oxidized at high temperature to become colorless non-toxic carbon dioxide gas; HC compounds are oxidized to water (H₂O) and carbon dioxide at high temperature; NOx is reduced to nitrogen and oxygen. Three kinds of harmful gases become harmless gases, so that car exhaust can be purified.

• 2 NO + 2 CO → N₂ + 2 CO₂
• 2 CO + O₂ → 2 CO₂
• 2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

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

Specifications: