New Four-Way Conversion Catalyst Cleans Up Gasoline-Engine Exhaust

Our four-way conversion (FWC™) catalyst for gasoline engines combines our knowledge and expertise in materials science, catalysts and processing. This unique solution is designed for Gasoline Direct Injection (GDI) engines and unites the functionality of a three-way conversion catalyst (TWC) with a filter on a single honeycomb.

Launched in April 2013, the single-component FWC technology can remove Particulate Matter (PM), as well as Carbon Monoxide (CO), Hydrocarbons (HC) and Nitrogen Oxides (NOx) from gasoline-engine exhaust, helping automakers meet strict new emissions regulations, including Euro 6c.

The traditional TWC used with gasoline engines removes CO, HC and NOx. In order to remove PM, a separate Gasoline Particulate Filter can be added, however this can increase back pressure and additional package space. The FWC addresses this challenge, creating a single-component technology solution.

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In addition to tightening long-established emissions restrictions for HC, CO and NOx emissions, upcoming Euro 6 regulations will introduce new controls for particulate matter emissions from gasoline-engine powered vehicles. The European Commission has decided to implement such new standards in two phases:

  • Phase 1 will begin in 2014, with an initial particulate limit of 6�--1012/km
  • Phase 2 (Euro 6c) with a more stringent standard of 6x1011/km in 2017.

The innovative FWC™ catalyst combines the functionality of a TWC catalyst on a filter substrate to remove all four pollutants with just one component. The benefits include:

  • Smart solutions to lower backpressure impact
  • Potential to save space in package design
  • Ensure particulate emissions below tight regulation limits
  • Reduction in system complexity, tooling and overall system cost

As the global leader in catalysts, our unsurpassed expertise in developing innovative emission control technologies for a wide range of applications enables clean air for a healthier, more sustainable future.