Presentation Profile
Analysis of trace water in hydrocarbon matrices by GC-BID
Currently Scheduled: 10/15/2024 - 2:30 PM - 2:50 PM
Room: Iris
Main Author
Allison Mason - Shimadzu Scientific Instruments
- Ian Shaffer - Shimadzu Scientific Instruments
Abstract:
Water can be found in a multitude of different hydrocarbon matrices, including natural gas, gasoline, crude oil, and mineral oil. Given the non-combustible and corrosive properties of water, it is closely monitored in hydrocarbon feed stocks . The concentration of water in oil matrices is typically under 500 ppm, which necessitates the need for highly sensitive techniques for detection. Karl Fischer titration is a common technique for water determination, but it presents difficulties due to temperature and humidity sensitivity, challenges with standardization and calibration, relatively high detection limits, interferences from alcohols and sulfur species, and other matrix difficulties such as separating and quantifying emulsified water. To address these challenges, a gas chromatography method for the analysis of trace water in heavy hydrocarbon oils has been developed using the Shimadzu Barrier discharge Ionization Detector. In this talk, we present data highlighting the benefits of this technology including ruggedness, sensitivity, and accuracy.
