Analysis of Natural Gas by Fourier Transform Infrared Spectroscopy.

Abstract

A fast experimental protocol was established for the simultaneous determination of methane, ethane, propane, and butane in nitrogen from Fourier transform infrared (FT-IR) spectra. The method is based on correlations established between known gas compositions and their FT-IR spectra. The spectra were collected in the region of 4,000 to 400/cm through KBr windows in a 100-mm pathlength gas sample cell operating at 100, 300, 500, 700, and 1,000 mm Hg pressure. Correlation between blending partial pressure or GC-based analysis and FT-IR data produced squared correlation coefficients (R2) in excess of 0.98. Total required analytical time is less than 2 minutes. jg p3

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1996
Accession Number
ADA304501

Entities

People

  • George E. Fodor

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Analytical Chemistry
  • Blending
  • Calorific Value
  • Chemistry
  • Coefficients
  • Combustion
  • Detectors
  • Heat Of Combustion
  • Infrared Spectroscopy
  • Marine Corps
  • Measurement
  • Natural Gas
  • Partial Pressure
  • Research Facilities
  • Spectra
  • Spectroscopy

Fields of Study

  • Chemistry

Readers

  • Petroleum Engineering
  • Spectroscopy.