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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...
采用TG-DTA技术研究了MoO3在CH4/H2气氛中的还原碳化行为，考察了NiO助剂对MoO3还原碳化性能的影响，探索了适宜的还原碳化条件。结果表明，MoO3在H2气氛中程序升温还原经MoO3 → MoO2 →Mo反应历程被还原为金属Mo，在CH4/H2气氛中则经MoO3→MoO2→MoOxCy →Mo2C反应历程被还原碳化成Mo2C；NiO可在H2气氛中被还原成金属Ni，但在CH4/H2气氛中...