Endress+Hauser Raman analysis is ideal for liquified natural gas, more

Reliable measurement of the LNG composition with an Endress+Hauser Raman probe in a bunker ship.

Among the many great industrial test and measurement solutions available from Endress+Hauser Canada Ltd. are Raman spectroscopy-based analyzer systems. These instruments offer a dependable, low-maintenance alternative to standard gas chromatography or vaporizer systems for the composition of liquified natural gas (LNG) and the measurement of energy content during custody transfer transactions.

This is confirmed by a recent multi-year study comparing different techniques from the European Gas Research Group (GERG), which comprises 33 members from 15 European nations.

Robust, efficient, and economical

Around the world, Raman spectroscopy has become popular as a robust, efficient, and economical analysis method for LNG composition measurement. Endress+Hauser Raman devices offer high accuracy and precision during important custody transfer transactions while lowering the maintenance burden substantially.

Global LNG demand is currently high for efficiently moving large amounts of natural gas, as the world tries to lower greenhouse-gas emissions and deal with disruptions in the energy supply chain. The transfer of custody during LNG transport by land and sea is a key step in the LNG process chain. Quick, dependable LNG composition measurement is crucial at every major point of contractual exchange.

The GERG evaluation project aimed to validate the measurement abilities of Raman technology to provide reliable, accurate, and exact composition measurement for energy calculation in LNG custody transfer. The study included thorough testing at a baseload LNG transfer facility in Belgium. Inspection provider EffecTech provided reference LNG samples to ensure the information met LNG metrology standards. An Endress+Hauser Raman system, comprised of a Raman Rxn-41 cryogenic probe fibre-optically coupled to a Raman analyzer optimized for LNG, took LNG measurements directly in the liquid phase.

The final report, “Raman method for determination and measurement of LNG composition”, concludes that Endress+Hauser Raman analyzer systems provide equivalent LNG measurement uncertainty with substantially lower operating costs and technical expertise than standard gas-chromatography/vaporizer systems do. The Raman systems reduced the complexity of the LNG monitoring system, had quicker startup stabilization times, provided higher repeatability, responded more quickly to process changes, and needed no maintenance during the whole evaluation period. Trust Endress+Hauser for top analysis solutions.

For more information, contact Endress+Hauser.

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