Spectroscopic characterization of small polar impurities in gasoline

Twagirayezu, Sylvestre

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https://hdl.handle.net/2142/100610 Copy

Description

Title

Spectroscopic characterization of small polar impurities in gasoline

Author(s)

Twagirayezu, Sylvestre

Contributor(s)

• Neill, Justin L.
• Muckle, Matt
• Mikhonin, Alex

Issue Date

2018-06-21

Keyword(s)

Spectroscopy as an analytical tool

Abstract

Small polar compounds in gasoline have been identified using a BrightSpec Fourier Transform Microwave Rotational Resonance (FT-MRR) spectrometer in the 260-290 GHz band with Headspace Sampling Module. The design of this spectrometer is based on segmented Chirped Pulse Fourier Transform millimeter wave (CP-FTmmW) spectroscopy, which exploits recent advances in digital electronics to allow the measurement of broadband rotational spectra in a few minutes. As part of efforts to determine applications for rotational spectroscopy to petrochemical problems, FT-MRR has been employed to record rotationally resolved spectra of small polar compounds in gasoline. Preliminary analysis of the observed features using the BrightSpec spectral database reveals a rich, but interpretable, pattern, due to the sensitivity of FT-MRR to only polar compounds. The complex hydrocarbon matrix, which in many analytical instruments obscures the signals from low concentration impurities, is nearly invisible in FT-MRR. Spectroscopic and quantitative analyses of detected polar compounds are underway and will be given in this talk.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/100610

DOI

10.15278/isms.2018.RH04

Copyright and License Information

Copyright 2018 Sylvestre Twagirayezu

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