Beijing Buses to Feature BASF Clean Air Technology   

By Tanya Tian

On November 5th, 2007 BASF Catalysts is supplying selective catalytic reduction (SCR) technology for Beijing transit buses that will be the first in Mainland China to meet Euro IV emission standards.  About 450 of the specially equipped buses will be on Beijing streets by the end of 2007, with an additional 600 buses scheduled for 2008. The SCR systems are projected to cut NOx (nitrogen oxides) emissions from the buses by more than 60%.  
   Beijing's transport authorities have announced that they will phase out thousands of older diesel buses and replace most of them with buses that meet Euro IV emission standards before the 2008 Olympic Games.
   BASF's SCR catalysts are currently being incorporated into 6.5-liter and 8.4-liter diesel engines made by Yuchai Machinery Corporation, the largest engine manufacturer in China. BASF worked closely with Yuchai to develop the most cost-effective SCR system to deliver the needed NOx reduction.