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DOI	10.1016/j.talanta.2021.123133
	Application of chromium catalysis technology to compound-specific hydrogen isotope analysis of natural gas samples
	Xing, Lan-tian; Li, Zhong-ping; Xu, Li; Li, Li-wu; Liu, Yan
通讯作者	Xing, LT (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Res Ctr Oil & Gas Resources, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0039-9140
EISSN	1873-3573
卷号	239
英文摘要	An easy-to-use and efficient approach for the catalytic pyrolysis of hydrocarbon gas here is proposed and tested, which allowed the precise measurement of delta H-2. This method requires the reaction tube filled with twisted chromium wire, establishing a gas chromatography-Chromium wire/high temperature conversion-isotope ratio mass spectrometer (GC-Cr/HTC-IRMS) system. The approach described here has many remarkable advantages over other techniques. In comparison to traditional carbon-coating pyrolysis technique, this proposed method greatly reduces the pyrolysis temperature of the hydrocarbon gas, especially methane, with temperatures reduced from 1450 to 1250 degrees C, while still ensuring excellent analytical precision. Therefore, hydrogen isotope analysis of natural gas can be carried out at a lower cracking temperature for a longer time, with the advantage of increasing the service life of the HTC furnace. Meanwhile, no pretreatment or activation is required while putting the Cr/HTC system to use. Further, the accuracy of delta H-2 values obtained using this new method is better than using the traditional method. Our experiments demonstrate that the test errors of this novel method and the conventional method are within +/- 5.5 parts per thousand and +/- 6.5 parts per thousand, respectively.
关键词	MASS-SPECTROMETRY CARBON WATER DELTA-H-2 METHANE BASIN FIELD
英文关键词	Chromium wire catalyst; Pyrolysis technology; Compound-specific isotope analysis (CSIA); Hydrogen isotope ratio; Natural gas
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
WOS记录号	WOS:000759247500012
来源期刊	TALANTA
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253655
作者单位	[Xing, Lan-tian; Li, Zhong-ping; Li, Li-wu; Liu, Yan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Res Ctr Oil & Gas Resources, Lanzhou 730000, Peoples R China; [Xu, Li] Petrochina Northwest Res Inst Petr Explorat & Dev, Lanzhou 730020, Peoples R China
推荐引用方式 GB/T 7714	Xing, Lan-tian,Li, Zhong-ping,Xu, Li,et al. Application of chromium catalysis technology to compound-specific hydrogen isotope analysis of natural gas samples[J]. 中国科学院西北生态环境资源研究院,2022,239.
APA	Xing, Lan-tian,Li, Zhong-ping,Xu, Li,Li, Li-wu,&Liu, Yan.(2022).Application of chromium catalysis technology to compound-specific hydrogen isotope analysis of natural gas samples.TALANTA,239.
MLA	Xing, Lan-tian,et al."Application of chromium catalysis technology to compound-specific hydrogen isotope analysis of natural gas samples".TALANTA 239(2022).