Abstract
AbstractOlefin metathesis provides an attractive and versatile route for the catalytic transformation of triglyceride‐based fats and oils into renewable chemical intermediates. Cross‐metathesis reaction of triglycerides with α‐olefins followed by transesterification leads to a complex array of olefins, fatty acid methyl esters, and fatty acid dimethyl esters. In order to evaluate the commercial value of these mixtures and to optimize process conditions, it is necessary to obtain detailed, quantitative, compositional information. With standard, one‐dimensional, gas chromatographic approaches, complete resolution of all components of interest with short analysis times is difficult to achieve. In this report we describe a rapid, microfluidic, two‐dimensional gas chromatographic methodology suitable for the detailed componential analysis of these complex mixtures. The precision of this method for individual components, as measured by the relative standard deviation, is on the order of 1 % or less, and the recovery of known blends of esters and olefins averaged 100 %.
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