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LNG composition measurement in tank run-down

LNG composition measurement in tank run-down

Optimize your LNG liquefaction process and improve storage safety

During tank run-down, LNG quality is measured before transferring to storage tanks to ensure it meets specifications. This step also boosts LNG storage safety by preventing fill-induced tank roll over and auto-stratification effects. Some measurement technologies can be problematic. GCs/vaporizers have slow results and higher OPEX due to vaporization, sample conditioning, and vaporized gas transport costs. They are also sensitive to LNG flow rate changes, causing inaccurate readings.

  • Delay-free LNG composition measurement

    with no consumables or sample conditioning

    Endress+Hauser Raman analyzer solutions offer real-time LNG composition measurement for better feedback control of the liquefaction process. Accurate and reliable analysis enables process optimization and composition adjustment to ensure LNG sent to storage tanks meets specifications. By helping to prevent roll-over, our Raman technology also increases storage safety. In addition, our analyzers do not require sample transport or vaporization for measurement which speeds results and lowers OPEX.

LNG terminal © Mike Mareen / adobe stock
Raman Rxn5 analyzer ©Endress+Hauser
Raman Rxn-41 probe ©Endress+Hauser
Raman Rxn5 analyzer system ©Endress+Hauser

How we can help

Endress+Hauser’s experience in process automation equips us to assist our customers with turnkey installations and full solutions. Our proven Raman technology delivers reliable LNG composition measurement so that process optimization controls, quality specifications, and safety considerations can be met.

  • In-line, instantaneous Raman measurement of LNG in the cryogenic liquid phase

  • Density, temperature, and N2 calculations of the rundown lines

  • Accurate, reliable measurement for feedback on the liquefaction process

  • Immunity to LNG flow variations (no vaporizer required)

  • No moving parts, no insulated transfer lines to maintain, and no consumables (such as calibration and carrier gases)

  • What we offer

    Optimize your LNG liquefaction operation with this Endress+Hauser solution.

    To improve your storage safety you can combine this application with our specific LNG tank gauging solution.

  • Hardware & Software

    • Raman Rxn5 analyzer - Raman RunTime embedded controller - Modbus TCP/IP or RS485

    • Raman Rxn-41 in situ probe - fiber cable up to 250 m - optional retraction hardware

    • Sunshade racks, cabinets, and shelters

    • Surrogate validation kit

    • Power and communications...

  • Services

    • Application consultancy & onsite inspection

    • Project management & engineering

    • FAT & SAT

    • Project commissioning

    • Customer training

  • Simple products

  • Easy to select, install and operate

Technical excellence

Simplicity

  • Standard products

  • Reliable, robust and low-maintenance

Technical excellence

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  • High-end products

  • Highly functional and convenient

Technical excellence

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  • Specialized products

  • Designed for demanding applications

Technical excellence

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Variable

FLEX selections Technical excellence Simplicity
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Fundamental selection

Meet your basic measurement needs

Technical excellence
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Lean selection

Handle your core processes easily

Technical excellence
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Extended selection

Optimize your processes with innovative technologies

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Xpert selection

Master your most challenging applications

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Get in touch with our solutions consultants

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