DOI: 10.1306/09101211189
Scopus记录号: 2-s2.0-84876142022
论文题名: Characterization of oil shale, isolated kerogen, and postpyrolysis residues using advanced13C solid-state nuclear magnetic resonance spectroscopy
作者: Cao X. ; Birdwell J.E. ; Chappell M.A. ; Li Y. ; Pignatello J.J. ; Mao J.
刊名: AAPG Bulletin
ISSN: 0149-1699
EISSN: 1558-9429
出版年: 2013
发表日期: 2013
卷: 97, 期: 3 起始页码: 421
结束页码: 436
语种: 英语
Scopus关键词: Bitumen extraction
; Chemical shift anisotropy
; Cross polarizations
; Direct polarization
; Generation process
; Nuclear magnetic resonance(NMR)
; Solid state nuclear magnetic resonance spectroscopy
; Total sideband suppressions
; Aromatic compounds
; Aromatization
; Carbon
; Kerogen
; Magic angle spinning
; Nuclear magnetic resonance spectroscopy
; Shale
; Oil shale
; cluster analysis
; condensation
; extraction
; kerogen
; nuclear magnetic resonance
; oil shale
; polarization
; pyrolysis
; sampling
; simulation
; spectroscopy
; Colorado
; Piceance Basin
; United States
; Swietenia
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Characterization of oil shale kerogen and organic residues remaining in postpyrolysis spent shale is critical to the understanding of the oil generation process and approaches to dealing with issues related to spent shale. The chemical structure of organic matter in raw oil shale and spent shale samples was examined in this study using advanced solid-state 13C nuclear magnetic resonance (NMR) spectroscopy. Oil shale was collected from Mahogany zone outcrops in the Piceance Basin. Five samples were analyzed: (1) raw oil shale, (2) isolated kerogen, (3) oil shale extracted with chloroform, (4) oil shale retorted in an open system at 500°C to mimic surface retorting, and (5) oil shale retorted in a closed system at 360°C to simulate in-situ retorting. The NMR methods applied included quantitative direct polarization with magic-angle spinning at 13 kHz, cross polarization with total sideband suppression, dipolar dephasing, CHn selection, 13C chemical shift anisotropy filtering, and 1H- 13C long-range recoupled dipolar dephasing. The NMR results showed that, relative to the raw oil shale, (1) bitumen extraction and kerogen isolation by demineralization removed some oxygen-containing and alkyl moieties (2) unpyrolyzed samples had low aromatic condensation; (3) oil shale pyrolysis removed aliphatic moieties, leaving behind residues enriched in aromatic carbon; and (4) oil shale retorted in an open system at 500°C contained larger aromatic clusters and more protonated aromatic moieties than oil shale retorted in a closed system at 360°C, which contained more total aromatic carbon with a wide range of cluster sizes. Copyright © 2013. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876142022&doi=10.1306%2f09101211189&partnerID=40&md5=a82d95fb92f271babaf136503c8133be
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13269
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
Cao X.,Birdwell J.E.,Chappell M.A.,et al. Characterization of oil shale, isolated kerogen, and postpyrolysis residues using advanced13C solid-state nuclear magnetic resonance spectroscopy[J]. AAPG Bulletin,2013-01-01,97(3)