Comparison of conventional gas chromatography and comprehensive two-dimensional gas chromatography for the detailed analysis of petrochemical samples

Comprehensive two-dimensional gas chromatography (GC × GC) has been investigated for the characterization of high valuable petrochemical samples from dehydrogenation of n-paraffins, Fischer–Tropsch and oligomerization processes. GC × GC separations, performed using a dual-jets CO 2 modulator, were o...

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Bibliographic Details
Published in:Journal of Chromatography A 2004-11, Vol.1056 (1), p.155-162
Main Authors: Vendeuvre, Colombe, Bertoncini, Fabrice, Duval, Laurent, Duplan, Jean-Luc, Thiébaut, Didier, Hennion, Marie-Claire
Format: Article
Language:English
Subjects:
Analytical chemistry
Applied sciences
Chemical Sciences
Chemistry
Chromatographic methods and physical methods associated with chromatography
Chromatography, Gas - methods
Computer Science
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
Gas chromatographic methods
Gas chromatography, comprehensive two-dimensional
Hydrocarbons
Petrochemical samples
Petroleum - analysis
Prospecting and production of crude oil, natural gas, oil shales and tar sands
Signal and Image Processing
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Summary:Comprehensive two-dimensional gas chromatography (GC × GC) has been investigated for the characterization of high valuable petrochemical samples from dehydrogenation of n-paraffins, Fischer–Tropsch and oligomerization processes. GC × GC separations, performed using a dual-jets CO 2 modulator, were optimized using a test mixture representative of the hydrocarbons found in petrochemicals. For complex samples, a comparison of GC × GC qualitative and quantitative results with conventional gas chromatography (1D-GC) has demonstrated an improved resolution power of major importance for the processes: the group type separation has permitted the detection of aromatic compounds in the products from dehydrogenation of n-paraffins and from oligomerization, and the separation of alcohols from other hydrocarbons in Fischer–Tropsch products.
ISSN:0021-9673
1873-3778
DOI:10.1016/j.chroma.2004.05.071