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ANALYTICAL INSTRUMENTATION About the Authors
Dr. Raj Shah is a Director at Koehler Instrument Company in New York, where he has worked for the last 25 years. He is an elected Fellow by his peers at IChemE, CMI, STLE, AIC, NLGI, INSTMC, The Energy Institute and The Royal Society of Chemistry. A Ph.D in Chemical Engineering from The Penn State University (
https://www.che.psu.edu/news-archive/2018/alumni-spotlight-raj-shah.aspx) and a Fellow from The Chartered Management Institute, London, Dr. Shah is also a Chartered Scientist with the Science Council, a Chartered Petroleum Engineer with the Energy Institute and a Chartered Engineer with the Engineering council, UK. An adjunct professor at the Dept. of Material Science and Chemical Engineering at State University of New York, Stony Brook, Raj has over 400 publications and has been active in the petroleum field for 3 decades.
More information on Raj can be found at
https://www.petro-online.com/news/fuel-for-thought/13/ koehlerinstrument-company/dr-raj-shah-director-at-koehler-instrumentcompany-conferred-with- multifariousaccolades/53404
Mr. Nabill Huq and Mr. Anthony Schevon are students of Chemical engineering at SUNY, Stony Brook University, where Dr. Shah is the chairman on the external advisory board of directors, and they are currently part of the thriving internship program at Koehler Instrument Company, in Long Island, NY.
Mr. David Forester recently retired after 44 years’ experience in the fuel and refining additive business. He has over 35 US patents on development of diesel and jet fuel additives, refinery antifoulants, and other refinery and process related additives. He has designed, implemented and/ automated many fuel test methods, including many ASTM standards. Mr. Forester most recently received the ASTM Award of Merit.
Nabill Huq Anthony Schevon or David Forester
He has been a member of ASTM Committee D02 for over 25 years and currently serves as Chairman of Subcommittee D02.14 Stability and Cleanliness of Liquid Fuels. He served along with Dr. Shah as the editor of the ASTM bestseller “The Fuels and Lubricant Handbook” published in 2019. More information on this can be found at
https://www.petro-online.com/ article/analytical-instrumentation/11/petro-industry-news/astmrsquos-long-awaited-fuels-and-lubricants-handbook-2nd-edition-now-available/2792
Author Contact Details Dr. Raj Shah, Koehler Instrument Company • Holtsvile, NY 11742 USA • Email:
rshah@koehlerinstrument.com • Web:
www.koehlerinstrument.com
Control of sulphur reduction in automotive fuels with compact, but powerful WDXRF
Sulphur in automotive fuels has been a source of toxic air pollutants like sulphur dioxide and sulphates. The international legislation enforces today very low residual sulphur concentrations in fuels, like the actual limit of 30 ppm for diesel in the US. The EU directive 2003/17/EC regulates the maximum allowed level in the European Union to be max. 10 ppm. Future regulations may drive these limits down even further. And more countries will join the sulphur reduction initiative.
Wavelength-dispersive X-ray fluorescence (WDXRF) analysis is actually the method of choice for accurately and precisely analysing low sulphur concentrations in petroleum products. WDXRF instruments are easily integrated into industrial workflows such as in refineries and commercial service laboratories due to its simple sample preparation, reliability, ease-of-use and accurate analytical results. At the same time, they offer compelling analytical performance making WDXRF far superior than other analytical methods. The ASTM Standard Test Method D2622 describes how to measure high, medium, low and ultra-low down to sub-ppm levels of S in different kind of fuels with WDXRF spectrometry using matrix-matched calibration for each material (oil, diesel, gasoline,…).
The S6 Jaguar WDXRF spectrometer is equipped with Bruker’s 400 W HighSense™ X-ray tube. According to Bruker, this makes the S6 Jaguar the most powerful benchtop WDXRF unit on the market! Modern software with built-in audit-tracking and state-of-the-art hardware enables best-in-class analytical performance. The S6 Jaguar achieves outstanding sensitivity for a wide range of elements (F to U) and the various configuration options allow us to optimise the system for your needs.
When using the S6 Jaguar for gasoline analyses, you get the full power of a WDXRF system that fits in a benchtop unit. Especially when measuring only a few elements, the S6 Jaguar is an excellent fit. In contrast to other methods like AAS (Atomic Absorption Spectroscopy), UV (Ultra-violet) and ICP-OES (Induced Coupled Plasma – Optical Elemental Spectroscopy), a simple one-time calibration makes the S6 Jaguar ready for your application.
The robust S6 Jaguar is an ideal choice for liquid sample analysis, with high quality components ensuring a long lifetime. It incorporates several features to facilitate simple and precise analysis such as dedicated liquid cups for simple and rapid loading of liquid samples and SampleCare™ technology,. Operation is made simple thanks to ergonomic TouchControl™
Are you interested to learn the power of GCXGC in petrochemical analysis?
display for operation without PC peripherals SPECTRA.ELEMENTS intuitive software with “one button” solutions as well as optional protecting critical system components for low maintenance and optional cup-in-cup technology for additional protection.
The calibration of low sulphur in mineral oil according to ASTM D 2622 was performed with seven standard samples prepared by using commercially available standards covering a concentration range from 0 – 100 ppm for the low range. All standards were traceable to the NIST reference sample. Seven grams of the standard or sample were pipetted into a liquid cell prepared with a 3.6 µm Mylar film support. The samples were measured directly after preparation.
Measurements were performed on the S6 JAGUAR for ASTM D 2622 using the germanium crystal combined with the standard collimator. The S Ka signal was detected with the proportional flow counter. The excitation of this line was done with 27 kV and full 400 W power
To test the analytical precision of the S6 JAGUAR one sample in the most important level of 10.2 ppm was measured 25 times one by one. The maximum allowed difference between two consecutive measurements was 0.93 ppm, but the typical difference of the S6 JAGUAR was much better, around 0.1 ppm. The LOD was 0.73 ppm.
The S6 Jaguar has a wide range of capabilities, and this report demonstrates that it is reliable for analysis of sulphur in fuels. The system easily fulfils the requirements for the WDXRF norm ASTM D 2622. The WDXRF spectrometer brings several advantages to your lab, esp. when compared to AAS and ICP-OES, including lower costs of operation and minimal calibration effort.
Don’t miss this 2-day short-courses on GCXGC at the PEFTEC Conference and exhibition taking place Online on the 24th & 25th November. Registration and attendance is Free of charge, presentation content will also be available to review by registered attendees “On Demand” after PEFTEC as an added bonus. Short course presentations will be given by industry experts in the field of petrochemical analysis using Gas Chromatography solutions, presenters include Pierre-Hugues Stefanuto from University of liege, Benedikt Weggle from CYNORA, Meilissa Dunkle from Dow and Anupam Giri from SABIC.”
For registration and to review the full conference program please visit
ilmt.co/PL/lVGY. For More Info, email:
56480pr@reply-direct.com
email: For More Info, email:
WWW.PETRO-ONLINE.COM
The S6 Jaguar enables time-efficient and accurate analysis of sulphur in fuels and oils, contaminants, and wear metals in fuels, lubricating and engine oils. When installed at refineries and oil- production plants, it can easily test the quality of incoming materials and optimise the used additives from day one. It ensures that all elements in fuels are analysed at best performance with highest accuracy and precision combined with low cost of ownership.
For More Info, email: email:
For More Info, email: email:
55915pr@reply-direct.com
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