Analysis of Biodiesel-Diesel Blended Fuels Using Ultrafast Gas Chromatography (UFGC) and Chemometric Methods

CSC 2018 – 101st Canadian Chemistry Conference and Exhibition, Edmonton, AB, Canada, May 27-31, 2018

Analysis of Biodiesel-Diesel Blended Fuels Using Ultrafast Gas Chromatography (UFGC) and Chemometric Methods

Amber M Hupp, College of the Holy Cross (Primary Presenter)
Joseph Perron, Falcon Analytical
Ned Roques, Falcon Analytical
John Crandall, Falcon Analytical
Scott Ramos, Infometrix
Brian Rohrback, Infometrix

Analytical Chemistry (AN)

Analytical Separations: Theory, Applications, Instrumentation

Biodiesel is added to diesel fuel in concentrations ranging from 2 to 35%, mostly for the purposes of reducing greenhouse gases. The resulting binary blended fuels (labeled B2-B35) have lowered hydrocarbon and carbon monoxide emissions compared to petrodiesel. Traditional analysis methods utilize gas chromatography (GC) with a long, polar column leading to separation times of thirty to sixty minutes.  As a faster alternative, we propose using ultrafast GC (UFGC) to evaluate binary fuels with concentrations ranging from 1-20% with various biodiesel feedstocks (soybean, tallow, safflower, sunflower, camelina, palm, etc). A short mid-polarity column (MXT-50, 4m x 180 mm x 0.2 mm, Restek) was used to provide optimal separation of the saturated fatty acid methyl esters (FAMEs) in the biodiesel while still allowing for retention of the variety of components in the diesel. Several chemometric tools, including Principal Component Analysis (PCA) and Partial Least Squares (PLS), were used to provide group analysis of feedstock type and concentration.

ISA-AD Advanced Course: Multivariate Analysis for Inferentials and Analyzers

ISA AD 2018 Advanced Analyzer CourseRegister to learn chemometrics best practices to make analyzers significantly more robust when put into routine practice. The course covers the best practices of multivariate technology and will prepare you to tackle a vast array of problems. This course is useful for any chemist or engineer who is concerned about optimizing their analytical methods to get the most out of their process operations. Click on the banner image to the left for more information and how to register.

63rd ISA Analysis Division Symposium

Prioritizing Multivariate Control
Brian Rohrback – Infometrix, Inc.


Keywords: Process Analysis, Process Control, Chromatography, Spectroscopy, Chemometrics, Calibration, Principal Component Analysis (PCA), Partial Least Squares (PLS)

Paper to be presented at the ISA-AD Meeting, Galveston, TX, April 22-26, 2018

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