1999
DOI: 10.1107/s0909049598015696
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Evolution of sulfur during pyrolysis of petroleum kerogens

Abstract: Sulphur K edge spectroscopy was used to differentiate types of sulphur present in petroleum asphaltenes and kerogens. A simplified model of the near edge structure enabled quantification of the different sulphur forms. The evolution of the sulphur edge following pyrolysis of kerogens confirms that thiophenic sulphur is more stable than organic sulphide forms. Pyrite retained in the kerogens may partially transform to iron sulphate during air storage. During pyrolysis FeS2 is regenerated and subsequently conver… Show more

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Cited by 8 publications
(6 citation statements)
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“…As a final note, we should remember that researchers in a wide variety of petroleum related domains can profit from the new techniques described here and the advances in their application. X-ray absorption spectroscopy has found applications ranging from following modifications in sulphur environment during pyrolysis of kerogens [63] to the study of interactions between lubrication additives for motor oil [64]. Mastering the effects of interactions between radiation and matter served as a basis for developments in multiphase flow metering systems to monitor the composition of production fluids [65] and in microtomography [66] for the visualisation of texture in reservoir rocks and composite materials [67].…”
Section: Resultsmentioning
confidence: 99%
“…As a final note, we should remember that researchers in a wide variety of petroleum related domains can profit from the new techniques described here and the advances in their application. X-ray absorption spectroscopy has found applications ranging from following modifications in sulphur environment during pyrolysis of kerogens [63] to the study of interactions between lubrication additives for motor oil [64]. Mastering the effects of interactions between radiation and matter served as a basis for developments in multiphase flow metering systems to monitor the composition of production fluids [65] and in microtomography [66] for the visualisation of texture in reservoir rocks and composite materials [67].…”
Section: Resultsmentioning
confidence: 99%
“…XANES spectra can be collected for all elements, from very light, e.g. nitrogen [63,64] or sulphur [65][66][67], and from transition metals such as Fe [68,69] to the heaviest, e.g. Pt [70][71][72][73][74].…”
Section: Theoretical Elements Of Xanesmentioning
confidence: 99%
“…Note that XAS is insensitive to polydispersity [30,31]. In heterogeneous catalysis, even if most of these investigations have been performed using photons whose energy lies in the range between 3 and 25 keV, it is worth to underline that different results based on the analysis of soft X-ray spectra collected either at the K-edge of light elements [32][33][34][35][36] or at the L-and M-edges of transition metals [37][38][39][40][41][42] have been obtained. For example, quite exciting results have been described recently by S. Carenco et al [43] regarding the CuCo bimetallic system.…”
Section: X-ray Absorption Spectroscopymentioning
confidence: 99%