Catalyst reduction system unveiled at SAE World Congress

FEV, Inc., a developer of advanced powertrain and vehicle technologies, will show its Solid Selective Catalyst Reduction (SSCR) System, installed in a Dodge Ram pickup truck at the 2009 SAE World Congress.

"All of our customers need to comply with future emissions regulations without sacrificing fuel economy," says Dr. Dean Tomazic, vice president of FEV, Inc.'s Engine Performance and Emissions Division. "We have invested significant resources in the development of aftertreatment technologies, the Solid SCR being just one example. This technology offers high potential due to its packaging advantages and the fact that it does not present the same low temperature issues that exist with liquid urea systems."

The Solid SCR System is a viable alternative to a liquid urea injection system. With a volume reduction of approximately 70 percent, the SSCR system still offers equivalent or better performance than liquid urea systems. SSCR is scalable and can be sized to accommodate both light and heavy-duty applications, as well as off-highway and stationary applications, according to the company. The SSCR system requires less energy for sublimation of the ammonia carbamate solid, which occurs at 60 degrees C. Sublimation is also reversible as the cooling gas reforms back to ammonia carbamate.

The potential use of a solid urea cartridge-based SCR system would dramatically reduce or eliminate the issues associated with development of a large-scale infrastructure for a liquid urea refilling. Degradation concerns are also reduced due to use of a stable solid ammonia carbamate. The solid cartridge will last three (3) times longer than a similarly sized liquid urea system and the SSCR system eliminates the need for costly heated tanks and supply lines.

The SAE World Congress is at Cobo Center in Detroit on April 20 - 23.