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基于13C NMR谱的煤层气应力成藏作用机理及控气意义
构造应力 控藏意义 核磁共振 煤层气成藏进程
2015/12/21
构造应力是促进煤化作用，从而也是影响煤层气生成的主要因素。为了探索浅层脆性条件下，不同类型构造应力对煤层气形成的影响机理和控藏意义，利用豫西煤田重力滑动构造典型的应力分区特性，在挤压、拉伸和剪切3个构造变形单元内，分别采集主采二1煤样并测定核磁共振吸收强度。测试结果表明，挤压、拉伸和剪切3个构造单元内煤样的芳碳率依次减小，数值分别是0.773、 0.730、0.702,而脂碳率依次增加,数值分...
Estimation of Gas Composition and Cage Occupancies in CH4-C2H6 Hydrates by CP-MAS 13C NMR Technique
Gas hydrate Natural gas Gas composition Cage occupancy 13C NMR
2009/7/28
CP-MAS 13C NMR measurements were carried out on mixed gas hydrates containing CH4-C2H6. The changes in NMR chemical shift values for CH4 and C2H6 clearly corresponded to the structural changes in the...
Hydrogenation of Dicarboxylic Acid Diesters to Corresponding Dialdehydes over ZrO2 Based Catalysts (Part 2) Analysis of Catalyst Surface Using Diffuse Reflectance FT-IR and CP/MAS 13C-NMR Spectroscopy
Diester hydrogenation Zirconia catalyst FT-IR Reaction mechanism
2009/7/24
The adsorption species on ZrO2 or Cr-ZrO2 catalyst in the hydrogenation of dimethyl benzenedicarboxylates as well as benzoic acid were characterized by diffuse reflectance FT-IR and CP/MAS 13C-NMR spe...