Pyrolysis Comprehensive Two-Dimensional Gas Chromatography Study of Petroleum Source Rock
- 23 June 2007
- journal article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 79 (15), 5642-5650
- https://doi.org/10.1021/ac070166j
Abstract
Detailed compositional analyses of sedimentary organic matter can provide information on its biotic input, environment of deposition, and level of thermal maturation. Pyrolysis-gas chromatography (py-GC), often coupled with a mass spectrometer (py-GC/MS), is one technique used to provide this information. New developments in comprehensive two-dimensional gas chromatography (GC×GC or 2D-GC), coupled with pyrolysis (py-GC×GC), offer the prospect of providing more complete and quantitative compositional information of complex organic solids, such as kerogen and coals. This study will describe applications of pyrolysis-GC×GC to the characterization of petroleum source rocks using flame ionization detector (FID) and sulfur chemiluminescence detector (SCD). In the hydrocarbon analysis by FID, paraffins, naphthenes, and aromatics form distinct two-dimensional separated groups. In the analysis with SCD, sulfur-containing compounds can be distinguished as different classes, such as mercaptans, sulfides, thiophenes, benzothiophenes, and dibenzothiophenes. Single components or summed bands of homologous components can be analyzed qualitatively and quantitatively. With these detailed molecular fingerprints, the relations between kerogen composition and its biotic input, environment of deposition, and thermal maturation may be better understood.Keywords
This publication has 28 references indexed in Scilit:
- Recent Advances in Comprehensive Two‐Dimensional Gas Chromatography (GC×GC)Journal of Liquid Chromatography & Related Technologies, 2006
- Recent developments in comprehensive two-dimensional gas chromatography (GC×GC): I. Introduction and instrumental set-upTrAC Trends in Analytical Chemistry, 2006
- Tracking the Weathering of an Oil Spill with Comprehensive Two-Dimensional Gas ChromatographyEnvironmental Forensics, 2006
- Control of the chemical structure of perhydrous coals; FTIR and Py-GC/MS investigationJournal of Analytical and Applied Pyrolysis, 2002
- Aqueous high-temperature chemistry of carbo- and heterocycles. 17. Thiophene, tetrahydrothiophene, 2-methylthiophene, 2,5-dimethylthiophene, benzo[b]thiophene, and dibenzothiopheneEnergy & Fuels, 1992
- Characterisation of kerogens, coals and asphaltenes by quantitative pyrolysis—mass spectrometryJournal of Analytical and Applied Pyrolysis, 1991
- Direct determination and quantification of sulfur forms in coals from the Argonne Premium Sample ProgramEnergy & Fuels, 1991
- Carbon-13 solid-state NMR of Argonne-premium coalsEnergy & Fuels, 1989
- Tocopherols as likely precursors of pristane in ancient sediments and crude oilsNature, 1984
- Occurrence and significance of prist-1-ene in kerogen pyrolysatesNature, 1979