Raman spectroscopic study of cracking and hydrolysis of propane in fused silica capillary capsules between 300 and 400 degrees C
Xu, Xiaochun1; Chou, I-Ming2; Chou, I-Ming(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China)
2017-11-01
发表期刊JOURNAL OF RAMAN SPECTROSCOPY
卷号48期号:11页码:1420-1425
产权排序第1完成单位 ; 第2完成单位
摘要Isothermal experiments on C3H8, with or without water, in fused silica capillary capsules were conducted at temperatures (Ts) between 300 and 400 degrees C for durations up to 322hours. Reaction progresses were evaluated with Raman spectroscopy at room T before and after heating. After an initial experiment, some samples were reheated to the same T for total durations up to 821hours. Consumption of water was monitored by calculating the changes in relative volumes of the vapor, aqueous, and C3H8 liquid phases from the lengths of the phases in the capillary. Reactions of C3H8 without water produced a small amount of CH4, reaching a steady state after about 100hours of heating at T<360 degrees C. Reactions with water appear to be largely hydrolysis, generating a CH4-rich vapor phase and methanol and ethanol in the aqueous phase. At fixed T, Raman spectra showed that concentrations of alcohols increased steadily with time as water was consumed. Our observations show that, without iron-bearing mineral buffers, the reactions between propane and water are relatively limited, forming alcohols without further oxidation to propanoic or ethanoic acid and/or CO2. This observation suggests that during deep burial, hydrocarbon gases may be more stable in iron-poor reservoirs like quartz arenites or carbonate grainstones than in mudstones or arkoses that are rich in redox-reactive iron-bearing siliciclastic and diagenetic minerals. Copyright (c) 2017 John Wiley & Sons, Ltd.
文章类型Article
关键词Propane Cracking Hydrolysis Raman Spectroscopy Fused Silica Capillary Capsule
WOS标题词Science & Technology ; Technology
DOI10.1002/jrs.5093
URL查看原文
收录类别SCI
语种英语
关键词[WOS]ORGANIC-ACIDS ; HYDROTHERMAL REACTIVITY ; HYDROUS PYROLYSIS ; CONSTRAINTS ; GENERATION ; WATER ; GAS ; TEMPERATURES ; PRESSURES ; MOLECULES
WOS类目Spectroscopy
WOS记录号WOS:000416235800006
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/5200
专题深海科学研究部_深海极端环境模拟研究实验室
通讯作者Chou, I-Ming; Chou, I-Ming(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China)
作者单位1.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Anhui, Peoples R China
2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China
通讯作者单位中国科学院深海科学与工程研究所
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Xu, Xiaochun,Chou, I-Ming,Chou, I-Ming. Raman spectroscopic study of cracking and hydrolysis of propane in fused silica capillary capsules between 300 and 400 degrees C[J]. JOURNAL OF RAMAN SPECTROSCOPY,2017,48(11):1420-1425.
APA Xu, Xiaochun,Chou, I-Ming,&Chou, I-Ming.(2017).Raman spectroscopic study of cracking and hydrolysis of propane in fused silica capillary capsules between 300 and 400 degrees C.JOURNAL OF RAMAN SPECTROSCOPY,48(11),1420-1425.
MLA Xu, Xiaochun,et al."Raman spectroscopic study of cracking and hydrolysis of propane in fused silica capillary capsules between 300 and 400 degrees C".JOURNAL OF RAMAN SPECTROSCOPY 48.11(2017):1420-1425.
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