泥炭藓煤及其热模拟固体产物的高分辩NMR研究

Study of High Resolution NMR of Yunan Sphugnum Brown Coal and Its Solid State Thermo-Simulated Products

本文报道了应用多种固体高分辩NMR新技术(~1HCRAMPS——T_1,T_(DD),^(13)CCPMAS——T_1,T_(DD)),对我国云南第三纪泥炭藓煤及其人工热摸拟固体产物的化学结构进行了研究。从所获谱图及各种数据清楚地展示了泥炭藓煤热演化过程中气态,液态烃的生成和排放机理。

The chemical structure of Yunan sphugnum brown coal and its solid state thermo-simulated products at various temperatures were investigated by the newest developed solid state high resdution NMR techniques (i.e., 1H CRAMPS Spectrum, 1H spin-Lattice relaxation time T1and 1H homo-nuclear dipolar dephasing decay constant TDD; 13C CPMAS spectrum, 13C spin-lattice relaxation time T1, and 13C hetero-nuclear depolar dephasing decay constant TDD) . The results clearly reveal the mechanism of generation and expulsion of gaseous and liquid hydrocarbons during the thermo-simulating process of Yunan sphugnum Brown coal.