PEFTEC 2019 - Abstract

Abstract Title: Using Microfluidic Wafer Technology to Simplify the Determination of Trace Levels of Light Oxygenated Compounds in Petroleum Streams by Gas Chromatography
Abstract Type: Seminar
Session Choice: Analytical Techniques: Chromatography and Separations
Presenter Name: Mr Manny Farag
Company/Organisation: PerkinElmer
Country: United Kingdom

Abstract Information :

Hydrocarbons streams contaminated with unapproved oxygenated compounds can negatively affect the environment. Feed stocks of butenes, propylene, and naphtha contaminated with oxygenated compounds decrease catalyst activity in downstream polymerization and olefinic cracking processes. 

The ability to detect precise sub-ppm amounts of MTBE, methanol, acetaldehyde and other C1-C5 oxygenated hydrocarbons in gasoline or in other petrochemicals is a very complex problem. A simple separation with a single column cannot be used because of peak co-elution. To address these limitations, more robust analytical methods must be employed.

A gas chromatograph equipped with a capillary split/splitless injector, FID, a precolumn, a SwaferTM microfluidic switching device, and a high selectivity column was used to enable these oxygenates to be monitored to sub-ppm levels. Results demonstrated include the standard methods such as ASTM D7423-09, and UOP960-06, and the advantages of the SwaferTM micro-flow technology over traditional valving or Dean Switches will be presented and discussed