HORIBA Europe GmbH

QCL technology fulfils EPA expectations for N2O analysis

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Source: HORIBA Europe GmbH

With its laser spectroscopic motor exhaust gas analyzer MEXA-1400QL-NX, HORIBA provides its customers with a powerful and universally applicable technology in the field of emissions testing. The analyzer is capable of simultaneously measuring four nitrogen compounds (NO, NO2, N2O and NH3), even at low concentrations using quantum cascade laser mid-infrared spectroscopy. The laser absorption method it utilizes has been referred to in CFR 1065 (as of January 2012) as one of the possible N2O analysis methods. In addition, all validation sequences required for analyzers in CFR 1065 (as of January 2012) are available and met in the MEXA-1400QL-NX.

“With our MEXA-1400QL-NX, we provide a powerful R&D tool for new regulations such as certification or reporting of greenhouse gas (GHG) emissions in accordance with EPA regulations,” said Atsushi Horiba, Chairman, President & CEO HORIBA, Ltd. “The analyzer allows direct measurement of N2O from heavy-duty, light-duty and non-road engines as well as direct measurement of NO2 and NH3 from heavy-duty engines as requested for R & D purposes related to EURO VI regulation.”

Especially characterized by the wide dynamic range of measurement, the analyzer delivers extremely precise and reproducible results. The QCL method is able to test gasoline, diesel and alternative fuels and powertrains. Thanks to the combination of a high-intensity, high-resolution light source and a sophisticated interference correction method, the MEXA-1400QL-NX is free of troublesome interference from CO, CO2, CH4, H2O, and hydrocarbons. It is applied to support the development of new NOX after-treatment systems such as Urea-SCR, CRT and Lean NOX Traps (LNTs). Thus, the analyzer is an effective tool to assist engine manufacturers in meeting the GHG standard and Euro VI requirements.

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