Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9748693 | Journal of Chromatography A | 2005 | 10 Pages |
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 (GCÂ ÃÂ 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 GCÂ ÃÂ GC. The resolution between saturates and olefins was found to be improved compared to a single GCÂ ÃÂ 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.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Colombe Vendeuvre, Fabrice Bertoncini, Didier Espinat, Didier Thiébaut, Marie-Claire Hennion,