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The GC for Biogas & RNG


Super-Fast, Extremely Sensitive, Multiple Sample Streams

The New Ohio Lumex Ei800 Series

Process Gas Chromatographs (GCs) have been the “go to technology” for Natural Gas (NG), and now biogas and Renewable Natural Gas (RNG) applications. The industry is familiar with the technology, they have been historically reliable, they typically offer explosion-proof enclosure options, and now the EPA Renewable Fuel Standard (RFS) has mandated them.

However, traditional GCs have limitations, including relatively slow response time, limited sensitivity, continual replacement of expensive carrier and calibration gas cylinders, the need for multiple detectors (TCD, FID, PID, IMS, etc.) to meet all of the measurement requirements, and long lead times to deliver them. These limitations significantly increase project costs, typically requiring multiple, expensive and dedicated analyzers, lengthy return loops to capture any off-spec gas, and ongoing replacement of expensive carrier and calibration gas cylinders, typically in the middle of nowhere.

That’s where the new Ei800 Series Process GC comes in. It offers all the benefits of the traditional GCs, while eliminating all of their limitations. The core difference is a Thermal Conductivity Detector (TCD) sensor technological breakthrough.

  • Sensitivity increased by Orders of Magnitude
    • 500 ppb DL
  • Dramatic increase in speed/response time
    • 30 seconds for complete gas composition analysis
  • One type of TCD detector for all compounds

Beyond the incredible TCD detector, the Ei800 Series also includes:

  • Multi-stream capability
    • Analyses complete within the 15-minute EPA RFS mandate
  • Explosion proof enclosure
  • Extremely compact design (11.4 x 10.2 x 4.8”)
  • Easy to maintain
    • No tubes or capillaries
    • Very robust design
    • Replaceable cartridges
  • Minimal carrier gas consumption
    • 5 ml/min. during analysis
  • Low power requirements
    • 10 W power consumption
    • 24 VDC (No AC required)
  • Flexible design allows for custom GC column selection

The result is one analyzer for all your needs.

  • RNG interconnection compliance
  • RNG process monitoring
    • Inert coating for high H2S
    • Vacuum eductor system for low pressure
  • EPA Renewable Fuel Standard (RFS) compliant
  • Natural gas
    • Custody transfer
    • Total sulfur
    • Trace oxygen
    • Trace moisture
    • BTEX

In production, field tested and available to order now.

Ohio Lumex logo in white


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