BASF introduces a four-way catalyst for gasoline engines

BASF introduces its innovative FWC™ four-way conversion catalyst for gasoline engines at the International Vienna Motor Symposium, being held April 25-26, 2013, in Vienna, Austria.

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

“We have successfully applied our knowledge and expertise in materials science, catalysis and processing to the development of this high-performing new technology,” said Dr. Klaus Harth, BASF’s Vice President, Mobile Emissions Catalysts Research. “The FWC is a unique solution which combines the functionality of a three-way conversion catalyst (TWC) with a filter on a single honeycomb.”

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 requires additional space. The FWC addresses this challenge, creating a single-component technology solution.

“Close collaboration between catalyst developers, substrate suppliers and automotive OEMs will be required to bring the full potential of the FWC to market,” said Xavier Susterac, BASF’s Vice President, Mobile Emissions Catalysts Europe. “BASF will continue to drive this process, leveraging our industry-leading innovation capabilities and our proven emissions control and catalysis manufacturing expertise to help move the industry forward.”

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, followed by phase 2 (Euro 6c) with a more stringent standard of 6×1011/km in 2017. In addition, Real-Driving Emissions (RDE) requirements will be considered from 2017 onward. In the United States, future U.S. Environmental Protection Agency (EPA) Tier 3 regulations will also require more stringent particulate emissions reductions. A video explaining 3-way catalyst technology is shown below:

Source: BASF

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