23 August 2007

Tenneco Inc. has signed an agreement to acquire the mobile emissions business of Combustion Components Associates, Inc. (CCA) for approximately $16 million. The acquisition enhances Tenneco’s system integration capabilities for selective catalyst reduction (SCR) technology designed to meet future diesel emission regulations for passenger cars and trucks.

CCA develops emission control systems for the power generation—specializing in low emission combustion systems for boilers—and the transportation industries. The company has designed a urea-SCR NOx emission reduction system called ELIM-NOx™. Customer demands for the SCR technology, driven by regulations, will increase in the USA, Europe and China starting in 2010-2012, according to Tenneco.

The ELIM-NOx injector system can provide uniform dispersion of urea without the use of steam or compressed air, reducing overall system lifecycle cost. Tenneco believes that, with this technology, it will be the only complete emissions control system manufacturer with the capability to manufacture and integrate its own injector systems into a diesel emission control system.

The ELIM-NOx system utilizes a “self-learn” monitoring device—which uses sensors to measure NOx, exhaust temperature, and other engine parameters—to reduce vehicle development time. The monitoring device is temporarily mounted on a development vehicle as it operates in normal driving conditions. This helps minimize off-line vehicle testing and calibration.

Tenneco intends to provide SCR systems for both OEM and retrofit applications. Later this year, the company expects to complete final validation testing for EPA verification of the technology.

Source: Tenneco