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Coal continues to be a major source of energy around the world.  However, with the increased emphasis on global warming and the reduction of greenhouse gases and other pollutants, and the increased importance of natural gas, there is greater interest in cleaner ways to use coal to produce energy.  One common approach is to gasify the coal instead of burning it, which converts the coal into syngas. The syngas can be used as a fuel for gas turbines in an Integrated Gasification Combined Cycle (IGCC) power plant.  When power demands are lower, the syngas can be converted to Substitute Natural Gas (SNG), which can be injected into gas distribution grids.  Obtaining reliable analysis in the SNG production process can be challenging due to extreme stream conditions.  The Optograf™ Gas Analyzer is a unique spectroscopic instrument capable of analyzing these challenging streams.

Typical IGCC Plant with SNG Production

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Application Notes
A table of downloadable application notes will appear if you rotate your device to landscape mode.
  Stream Service Key Measurement
Application Note  
0 IGCC Plant SNG Production Analytics Overview   SY0
1 Raw Syngas from Gasifier Effluent Composition / CH4 SY1
2 Syngas after Scrubber Composition H2  / CO / CO2 SY2
3 Raw Syngas from Other Trains  Composition H2  / CO / CO2 SY3
4 Common Syngas Header and Scrubbers Composition H2  / CO / CO2 SY4
5 Shift Converter Outlet Composition​ H2  / CO / CO2 SY5
6 CO2  Absorber Outlet Composition​ H2 / CO / CO2 SY6
7 SNG at Methanator Outlet Composition CH/ H2  /  CO2 SY7
8 SNG to Pipeline Composition CH4 / H2  / CO / CO2 SY8
9 CO2  Recovery Stream Composition CH/ H2  /  CO2 / N2 SY9