Methane, ethane and propane analysis in gases

Edited by the Processingtalk editorial team Dec 15, 2006

Aspectrics, the innovator of Encoded Photometric Infrared Spectroscopy (EP-IR) analysers, announces a new application for the analysis of methane, ethane and propane in the gas phase

Aspectrics, the innovator of Encoded Photometric Infrared Spectroscopy (EP-IR) analysers, announces a new application for the analysis of methane, ethane and propane in the gas phase using EP-IR technology.

The study was designed to prove the capacity of EP-IR spectrometry to collect sufficient spectral information to enable the development of a multivariate quantitative analysis method for the simultaneous measurement of all three gases.

The application showed that Aspectrics EP-IR analysers are capable of resolving several chemical compounds, even if they share a similar chemical composition and subsequent spectroscopic features.

This application is designed to offer scientists working in the process industry an efficient and cost-effective solution for measuring hydrocarbon gases.

This new application note is available to download free-of-charge via the Aspectrics website.

Achieving 100scans/second, Aspectrics award-winning EP-IR MultiComponent Analysers feature a nominal spectral range of 2.5-5.0 microns and an impressive 128 photometric channels.

The company's analyser was coupled with the Aspectrics I-Cell gas cell and data was collected using Aspectrics Commander data collection software which controlled both the spectrometer for data collection and the Environics 4000 gas blender for the delivery of the sample.

This easy-to-use configuration allowed laboratory technicians to analyse the samples, freeing up scientist time.

Traditionally, infrared wavelength instruments are limited either in the simultaneous characterisation of more than one chemical compound, or by a lack of ruggedness.

In contrast, Aspectrics MultiComponent EP-IR spectrometer, which recently received the R and D 100 Award, is capable of measuring several chemical compounds with the same chemical composition.

The Aspectrics EP-IR analyser delivered excellent analytical results in calibration and validation and obtained precise values for all measurements of methane, ethane and propane in conditions mimicking the presence of ethane and propane in a pure stream of methane.