Summer news 2014
World's first traceable cryogenic LNG reference liquids developed at EffecTech
The physical properties of LNG are important in the production, transportation and combustion of LNG and also for commercial billing of the product. The energy content of a cargo of LNG is derived from the volume of liquid, the calorific value of the liquid and the density of the liquid and these final two parameters are calculated from the LNG’s composition. Unfortunately, the LNG is a cryogenic liquid at -163°C and it does not lend itself easily to direct measurement like natural gas.
EffecTech has developed a bespoke cryostat facility for the production of cryogenic reference liquids. These reference liquids with known composition can be used to calibrate instruments measuring LNG. Composition measurements made on the re-vapourised samples are compared with the reference gas values to determine any differences. These differences in composition are quantified and the results are compared to the requirements of the vaporisation testing standard EN 12838:2000
More than ten reference gases with a range of compositions covering typical LNG ranges have been condensed in the cryostat and the liquids re-vapourised and measured. All mixtures have shown excellent gas / liquid composition comparability and comply with the strict requirements of EN 12838. The principal use of the cryostat is as a calibration device where instrument probes can be inserted so measurements of the LNG inside the cryostat can be made to calibrate or validate the instrument.
The first customer to use the facility was Shell Global Solutions with the evaluation of a Raman Spectrometer.
Alternative carrier gases for process analysers
In April, Dr Paul Holland and Ellie Henshall-Bell presented a paper on ‘alternative carrier gases for process analysers’ at the Oil & Gas Focus Group in Norwich. In 2013, we carried out an investigation, looking at candidate gases that could be used as an alternative to helium. The talk generated some interesting discussions and we will be looking to do further research in the future.
The work was funded by Nexen Petroleum and carried out by EffecTech’s Chris Cowper.
Sentinel Business Awards
After winning the Staffordshire Sentinel's Small Business of the Year Award in 2008 and being runner-up in the Business of the Year Award in 2009, the team at EffecTech, UK are delighted to announce they have won the Small Business of the Year Award 2013/14.
Dr Gavin Squire, CEO EffecTech Group has said of the award “To be recognised once again by the judges at the Sentinel Awards is testament to the commitment and spirit of a smart working group of engaged people from the Staffordshire area. We are privileged to be part of this team at EffecTech. The Company dedicates this award to every single member of staff all of whom have directly influenced our success."
Courtesy of Staffordshire Sentinel News & Media
Ask the expert
Do you have any specific questions regarding gas quality or flow?
Our ask the expert
feature is only a click away.