Journal
JOURNAL OF RAMAN SPECTROSCOPY
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1002/jrs.6572
Keywords
gas analysis; methane; natural gas; pressure broadening; spectra simulation
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Raman spectroscopy is a promising method for analyzing natural gas and measuring hydrocarbon concentrations. This paper presents a simple method to simulate the Raman spectrum of methane in natural gas under different pressures and concentrations of nitrogen, carbon dioxide, and ethane. The method can improve the accuracy of Raman gas analysis of natural gas and other methane-bearing media.
Raman spectroscopy is a promising method to analyze natural gas. Measurement of hydrocarbon concentrations is required for quality control of this fuel. Despite the presence of intense characteristic peaks of hydrocarbons in the range of 2800-3040 cm(-1), researchers avoid this region due to the overlap with a methane spectrum. This paper presents a simple method to simulate the Raman spectrum of methane in natural gas at different pressures and concentrations of nitrogen, carbon dioxide, and ethane. A detailed description of the algorithm and the empirical parameters necessary for the simulation are provided. The method can be used to improve the accuracy of the Raman gas analysis of natural gas and other methane-bearing media.
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