Cu Zeolite Scr Catalysts For Automotive Diesel Nox Emission Control Ammonia Slip Catalyst 400CPSI

SCR NOx Control Catalyst for Diesel Engine Fe/zeolite Cu/Zeolite Vanadium

SCR Catalyst (NOx Control Catalyst)

SCR is free of precious metals and is operated continuously under excess oxygen with ammonia used as reductant. The ammonia is created as a decomposing product of a 32.5% aqueous urea solution dosed into the exhaust pipe upstream of the SCR catalyst. The required dosing hardware basically consists of a heated tank, heated tubes, an injector nozzle, a mixing device to ensure homogeneous flow distribution and complete decomposition of the urea solution and an electronic control unit. For the effective dosing of aqueous urea solution a minimum exhaust temperature of 160°C is required.

Advantages:

• Low pressure drop
• High surface area
• Good consistency water absorption
• Low thermal expansion coefficient
• Good heat shock resistance and heat vibration resistance
• Ideal matching with various active catalyst components

Features

WFEC has developed SCR catalysts for meeting NOx emission control both of mobile and stationary applications. Depending on different application scene, WFEC can provide matched wash-coated products including Fe/zeolite (450~620 ^oC), Cu/Zeolite (190~550 ^oC), vanadium-based metal oxides (230~470 ^oC) and Mn-containing oxide catalysts (130~250 ^oC).

Applications

Boilers / Turbines

Diesel engine emissions

Engine systems for vessels

Industrial processes

Others (iron and steel making, coking plant and cement manufacturing)

Specifications

Square honeycomb SCR w/ or w/o NH₃-slip catalyst

---Cell desity:40/75/100/200/300 cpsi

---Size:150*150*100/150/200/250/300/400mm

Cylindrical honeycomb SCR w/ or w/o NH₃-slip catalyst

---Cell desity: 300/400/600 cpsi

---Size:(ϕ143.8~330.2mm)*(101.6~177.8mm)

Customer customization