Article ID Journal Published Year Pages File Type
9748693 Journal of Chromatography A 2005 10 Pages PDF
Abstract
A multidimensional method providing the composition of a heavy naphtha in paraffins, isoparaffins, olefins, naphthenes, and aromatics (PIONA) in the C8-C14 range is presented. The analytical set-up consists in a silver modified silica olefin trap on-line coupled to comprehensive two-dimensional gas chromatography (GC × GC). In this configuration, hydrocarbons are separated, in gaseous state, in two fractions, saturate and unsaturate, each fraction being subsequently analysed by GC or by GC × GC. The resolution between saturates and olefins was found to be improved compared to a single GC × GC run. The characterisation of the olefin trap highlights the benefits and the limits related to the use of that stationary phase as a double bond selective fractionation medium.
Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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