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Refineries process crude oil into a variety of useful products, including gasoline, diesel fuel, and heating oil.  Modern refineries use hydrogen in numerous hydrotreating and hydrocracking processes, and an essential feedstock for many of these process units is hydrogen. Hydrogen is the simplest and most abundant element on earth. Hydrogen is primarily produced from Steam Methane Reforming (SMR) of natural gas.  In refineries, one of the most common uses of hydrogen is in the various hydrotreater and hydrocracker process units used throughout the refining process. Given its extensive use in refineries, recycle gas loops are also quite common in refineries to recover unused H2. Many of these gas streams contain high levels of steam, and the process conditions are severe enough to require special sample conditioning techniques. The Optograf™ Analyzer and integrated sampling interfaces address these sampling and analysis challenges.

Typical Hydrogen Plant

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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
0 Captive Hydrogen Production Analytics Overview   HH0
1 Natural Gas Feed to Primary Reformer Carbon Content HH1
2 Fuel Gas to Reformer Furnaces BTU HH2
3 Raw Syngas - Primary Reformer Outlet Composition / CH4 HH3
4 Raw Syngas - Secondary Reformer Outlet Composition / CO HH4
5 High Temperature Shift Converter Outlet   Composition / CO HH5
6 Low Temperature Shift Converter Outlet Composition / CO2 HH6
7 CO2 Absorber Outlet - Feed to PSA Composition / CO2 HH7
8 PSA Unit H2 Stream Composition / H2 / N2 HH8
9 CO2 Recovery Stream CH4 Leakage HH9