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PAS-based analysis of natural gas samples
Marc-Simon Bahr1,2, Marcus Wolff1
1Heinrich Blasius Institute of Physical Technologies, Hamburg University of Applied Sciences, Hamburg, Germany.
Frontiers in Chemistry
|January 5, 2024
Summary
Photoacoustic spectroscopy (PAS) can analyze natural gas composition, including alkanes. This method, validated by gas chromatography (GC), shows PAS
Area of Science:
- Analytical Chemistry
- Spectroscopy
- Environmental Science
Background:
- Photoacoustic spectroscopy (PAS) excels at detecting short-chain hydrocarbons (methane, ethane, propane) at ppm/ppb levels.
- Natural gas composition, particularly alkane concentrations, is critical for production and combustion processes.
- Gas chromatography (GC) is the established standard for natural gas analysis.
Purpose of the Study:
- To present and validate a photoacoustic spectroscopy (PAS) method for analyzing natural gas samples.
- To describe a sample preparation technique for atmospheric pressure natural gas storage samples for PAS analysis.
- To assess the suitability of PAS for comprehensive natural gas investigation.
Main Methods:
- Analysis of natural gas samples using photoacoustic spectroscopy (PAS).
- Development of a method for preparing gas samples stored at atmospheric pressure for PAS.
- Validation of all PAS measurements against established gas chromatography (GC) standards.
Main Results:
- Demonstrated a viable PAS method for natural gas analysis.
- Successfully validated PAS results with GC, confirming accuracy.
- Provided insights into the effectiveness of PAS for natural gas composition analysis.
Conclusions:
- Photoacoustic spectroscopy (PAS) is a suitable technique for analyzing natural gas composition.
- The developed sample preparation method enhances PAS applicability for storage gas samples.
- PAS offers a complementary or alternative approach to GC for natural gas analysis.
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