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Methanol

A typical modern methanol-producing plant based on natural gas as primary feedstock converts the natural gas in a Steam Methane Reformer (SMR) to make-up syngas, a mixture of H2, CO and CO2. Alternatively, the syngas can be produced via gasification of coal, petroleum coke, oil residues, or biomass. The raw syngas converted to methanol in a methanol synthesis loop. Methanol conversion is continuously removed from the synthesis loop in the methanol separator. The gas from the separator is then recycled back and combined with the make-up syngas as part of a synthesis loop. Many of the gas streams in the methanol synthesis process pose significant challenges for traditional analyzers. The Optograf™ Analyzer provides a unique and robust solution for these challenging streams.

Typical Methanol Plant

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Application Notes
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  Stream Service Key Measurement
Parameter
Application
Note
 
0 Methanol Production Analytics Overview   ME0
1 Natural Gas Feed to Primary Reformer Carbon Content ME1
2 Fuel Gas to Reformer Furnaces BTU ME2
3 Raw Syngas - Primary Reformer Outlet Composition / CH4 ME3
4 Raw Syngas - Secondary Reformer Outlet Composition H / CO / CO2 ME4
5 Raw Syngas from Gasifier Effluent Composition / CH4 ME5
6 Syngas after Scrubber Composition H2  / CO / CO2 ME6
7 Make-up Syngas Composition H2  / CO / CO2 ME7
8 Syngas to Methanol Reactor Composition H2  / CO / CO2 ME8
9 Methanol Synthesis Loop Recycle Composition ME9