$Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)$
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Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)

Abstract Three series of laboratory vaporization experiments were conducted to investigate the carbon isotope fractionation of low molecular weight hydrocarbons (LMWHs) during their progressive vaporization. In addition to the analysis of a synthetic oil mixture, individual compounds were also studi...

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Autores principales:	Qian-Yong Liang, Yong-Qiang Xiong, Jing Zhao, Chen-Chen Fang, Yun Li
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	Low molecular weight hydrocarbons Gas chromatography–isotope ratio mass spectrometry Isotope fractionation Vaporization Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/1a9292f47eb047d99bfec87fb5ba36df
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spelling	oai:doaj.org-article:1a9292f47eb047d99bfec87fb5ba36df2021-12-02T04:00:00ZCarbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)10.1007/s12182-017-0155-41672-51071995-8226https://doaj.org/article/1a9292f47eb047d99bfec87fb5ba36df2017-04-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0155-4https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Three series of laboratory vaporization experiments were conducted to investigate the carbon isotope fractionation of low molecular weight hydrocarbons (LMWHs) during their progressive vaporization. In addition to the analysis of a synthetic oil mixture, individual compounds were also studied either as pure single phases or mixed with soil. This allowed influences of mixing effects and diffusion though soil on the fractionation to be elucidated. The LMWHs volatilized in two broad behavior patterns that depended on their molecular weight and boiling point. Vaporization significantly enriched the 13C present in the remaining components of the C6–C9 fraction, indicating that the vaporization is mainly kinetically controlled; the observed variations could be described with a Rayleigh fractionation model. In contrast, the heavier compounds (n-C10–n-C12) showed less mass loss and almost no significant isotopic fractionation during vaporization, indicating that the isotope characteristics remained sufficiently constant for these hydrocarbons to be used to identify the source of an oil sample, e.g., the specific oil field or the origin of a spill. Furthermore, comparative studies suggested that matrix effects should be considered when the carbon isotope ratios of hydrocarbons are applied in the field.Qian-Yong LiangYong-Qiang XiongJing ZhaoChen-Chen FangYun LiKeAi Communications Co., Ltd.articleLow molecular weight hydrocarbonsGas chromatography–isotope ratio mass spectrometryIsotope fractionationVaporizationScienceQPetrologyQE420-499ENPetroleum Science, Vol 14, Iss 2, Pp 302-314 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Low molecular weight hydrocarbons Gas chromatography–isotope ratio mass spectrometry Isotope fractionation Vaporization Science Q Petrology QE420-499
spellingShingle	Low molecular weight hydrocarbons Gas chromatography–isotope ratio mass spectrometry Isotope fractionation Vaporization Science Q Petrology QE420-499 Qian-Yong Liang Yong-Qiang Xiong Jing Zhao Chen-Chen Fang Yun Li Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)
description	Abstract Three series of laboratory vaporization experiments were conducted to investigate the carbon isotope fractionation of low molecular weight hydrocarbons (LMWHs) during their progressive vaporization. In addition to the analysis of a synthetic oil mixture, individual compounds were also studied either as pure single phases or mixed with soil. This allowed influences of mixing effects and diffusion though soil on the fractionation to be elucidated. The LMWHs volatilized in two broad behavior patterns that depended on their molecular weight and boiling point. Vaporization significantly enriched the 13C present in the remaining components of the C6–C9 fraction, indicating that the vaporization is mainly kinetically controlled; the observed variations could be described with a Rayleigh fractionation model. In contrast, the heavier compounds (n-C10–n-C12) showed less mass loss and almost no significant isotopic fractionation during vaporization, indicating that the isotope characteristics remained sufficiently constant for these hydrocarbons to be used to identify the source of an oil sample, e.g., the specific oil field or the origin of a spill. Furthermore, comparative studies suggested that matrix effects should be considered when the carbon isotope ratios of hydrocarbons are applied in the field.
format	article
author	Qian-Yong Liang Yong-Qiang Xiong Jing Zhao Chen-Chen Fang Yun Li
author_facet	Qian-Yong Liang Yong-Qiang Xiong Jing Zhao Chen-Chen Fang Yun Li
author_sort	Qian-Yong Liang
title	Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)
title_short	Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)
title_full	Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)
title_fullStr	Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)
title_full_unstemmed	Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)
title_sort	carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (c6–c12)
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/1a9292f47eb047d99bfec87fb5ba36df
work_keys_str_mv	AT qianyongliang carbonisotopicfractionationduringvaporizationoflowmolecularweighthydrocarbonsc6c12 AT yongqiangxiong carbonisotopicfractionationduringvaporizationoflowmolecularweighthydrocarbonsc6c12 AT jingzhao carbonisotopicfractionationduringvaporizationoflowmolecularweighthydrocarbonsc6c12 AT chenchenfang carbonisotopicfractionationduringvaporizationoflowmolecularweighthydrocarbonsc6c12 AT yunli carbonisotopicfractionationduringvaporizationoflowmolecularweighthydrocarbonsc6c12
_version_	1718401475299770368

Carbon isotopic fractionation during vaporization of low molecular weight hydrocarbons (C6–C12)

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