AZEqualizer
04-22-2009, 11:20 AM
Autobloggreen (http://www.autobloggreen.com/2009/04/22/sae-2009-fev-unveils-solid-scr-nox-reducer-for-diesels/) had this to report:
http://www.blogcdn.com/www.autobloggreen.com/media/2009/04/fev-solid-scr.jpg
Powertrain engineering specialists FEV is showing off this new NOx reduction system for diesel engines. Instead of an aqueaous urea solution that is injected into the exhaust stream, this one uses a solid known as a ammonia carbomate that is a byproduct of fertilzer production. The ammonia carbomate is stored within a canister similar to an oil filter. The solid system provides easier handling and packaging and doesn't require the heated storage tanks that urea needs to keep from freezing in cold weather.
FEV is working with supplier Tenneco to market the system and the retrofit market is seen as a prime target for the system. The solid SCR could be adapted to older buses and trucks to bring them up to modern emissions standards.
http://www.blogcdn.com/www.autobloggreen.com/media/2009/04/fev-solid-scr.jpg
Powertrain engineering specialists FEV is showing off this new NOx reduction system for diesel engines. Instead of an aqueaous urea solution that is injected into the exhaust stream, this one uses a solid known as a ammonia carbomate that is a byproduct of fertilzer production. The ammonia carbomate is stored within a canister similar to an oil filter. The solid system provides easier handling and packaging and doesn't require the heated storage tanks that urea needs to keep from freezing in cold weather.
FEV is working with supplier Tenneco to market the system and the retrofit market is seen as a prime target for the system. The solid SCR could be adapted to older buses and trucks to bring them up to modern emissions standards.