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 percent.
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.
“We are excited to be part of China’s historic efforts to reduce vehicle pollution in Beijing,” said Luna Song, Regional Sales Manager, BASF Catalysts. “All eyes will be on the city during next summer’s Olympic Games and we’re proud to play a role in cleaning the air.”
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.
SCR is one of several technology platforms BASF has developed to meet the significant growing demand for emission-control technologies resulting from the phase-in of more stringent heavy-duty diesel regulations worldwide. The SCR catalyst comprises a catalytically active component coated on a ceramic honeycomb. When a reductant, such as AdBlue® urea by BASF, is added to the system, the catalyst promotes a chemical reaction that converts NOx into water and nitrogen.
BASF Catalysts originally pioneered SCR technology in the late 1960s for stationary-source applications such as power-generating and industrial manufacturing facilities. The company continues to be a major supplier to the stationary-source market.
BASF’s Catalysts division is the world’s leading supplier of environmental and process catalysts. The division offers exceptional expertise in the development of technologies that protect the air we breathe, produce the fuels that power our world and ensure efficient production of a wide variety of chemicals, plastics, adsorbents and other products.