title: Determination of maximal amount of minor gases adsorbed in a shale sample by headspace gas chromatography.
abstract: In this paper, we present a novel method for determining the maximal amount of ethane, a minor gas species, adsorbed in a shale sample. The method is based on the time-dependent release of ethane from shale samples measured by headspace gas chromatography (HS-GC). The study includes a mathematical model for fitting the experimental data, calculating the maximal amount gas adsorbed, and predicting results at other temperatures. The method is a more efficient alternative to the isothermal adsorption method that is in widespread use today.
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University Technology, Guangzhou, China.
authors.forename: Chun-Yun
authors.initials: CY
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University Technology, Guangzhou, China.
authors.forename: Hui-Chao
authors.initials: HC
authors.lastname: Hu
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University Technology, Guangzhou, China. Electronic address: xschai@gmail.com.
authors.forename: Xin-Sheng
authors.initials: XS
authors.lastname: Chai
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Pan
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China.
authors.forename: Xian-Ming
authors.initials: XM
authors.lastname: Xiao
mesh_terms: D000327:Adsorption; D002849:Chromatography, Gas / Q000379:methods; D004980:Ethane / Q000032:analysis*; D059206:Natural Gas / Q000032:analysis*; D013696:Temperature
chemical_list: D059206:Natural Gas; D004980:Ethane
keywords: Ethane; Gas chromatography; Headspace; Maximal adsorption; Shale gas