ASTM D7900: Boiling Point Distribution of Crude Oil with Speciation of Biomarkers to Phytane

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Date: 16:00:00 - Sep 26 2017

Speakers: Lee Marotta, Chris Goss

Moderators: Tom Lynch

ASTM D7900: Boiling Point Distribution from C1 to C100 Boiling Point Distribution of Crude Oil with Speciation of Biomarkers to Phytane, on One Gas Chromatograph (GC)

The accuracy of the boiling point distribution by method ASTM D7169 is compromised by solvent interference/quenching in the C4 to C8 boiling point range. The new “merge” method, ASTM D7900, does a good job of providing enhanced accuracy to the boiling point distribution; however, D7900 requires two analyses on two gas chromatographs. The distribution and speciation from a Detailed Hydrocarbon Analysis (DHA) for C9 minus backflushing C9 plus so these analytes do not enter the DHA column, and a classical D7169 for C9 plus. The results from the two analyses are then mathematically merged to obtain the boiling point distribution of the entire crude oil.

This eLearning session will discuss ASTM D7900 and an innovative multidimensional technique of performing this analysis of stabilized crude oils on a single GC with the necessary improvements in accuracy.

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Speakers

Lee Marotta (Perkin Elmer)

Lee Marotta started her career at Exxon Corporate Research as a gas chromatographer in 1988. Since Exxon, Lee has been employed at PerkinElmer for over 25 years as a Field Application Scientist developing methods for gas chromatography and assisting customers realize solutions and be successful.

Chris Goss (Innotech Alberta)

Chris has extensive gas chromatography experience including research, method development, and standard methods in the petroleum testing industry.

Moderators

Tom Lynch (labmate)

Tom has 35 years’ of experience in the petroleum industry, specialising in the delivery of forensic and problem solving /method development capabilities for BP Fuels and Lubricants businesses globally. He was also a member of the BP Science Council representing Analytical Science and led a BP wide Analytical Science network. Tom has published over 30 citable papers, 4 book chapters and has given over 60 presentations at conferences. He is a past Vice President of the Royal Society of Chemistry (RSC) Analytical Division and a past Chairman of the RSC Separation Science Group. In addition, Tom is a recipient of the Silver Jubilee Medal by the Chromatographic Society and a technical achievement award by the Energy Institute.