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| 1 | Characterization and Activity of Cr, Cu and Ga Modified ZSM-5 for Direct Conversion of Methane to Liquid Hydrocarbons显示文摘Direct conversion of methane using a metal-loaded ZSM-5 zeolite prepared via acidic ion exchange was investigated to elucidate the roles of metal and acidity in the formation of liquid hydrocarbons. ZSM-5 (SiO2/Al2O3=30) was loaded with different metals (Cr, Cu and Ga) according to the acidic ion-exchange method to produce metal-loaded ZSM-5 zeolite catalysts. XRD, NMR, FT-IR and N2 adsorption analyses indicated that Cr and Ga species managed to occupy the aluminum positions in the ZSM-5 framework. In addition, Cr species were deposited in the pores of the structure. However, Cu oxides were deposited on the surface and in the mesopores of the ZSM-5 zeolite. An acidity study using TPD-NH3, FT-IR, and IR-pyridine analyses revealed that the total number of acid sites and the strengths of the Bronsted and Lewis acid sites were significantly different after the acidic ion exchange treatment.Cu loaded HZSM-5 is a potential catalyst for direct conversion of methane to liquid hydrocarbons. The successful production of gasoline via the direct conversion of methane depends on the amount of aluminum in the zeolite framework and the strength of the Bronsted acid sites. | Nor Aishah Saidina Amin Didi Dwi Anggoro | 2003 | Journal of Natural Gas Chemistry2003，12，2： | 6 |
| 2 | 甲烷无氧直接转化反应动力学研究及设计模拟显示文摘根据甲烷无氧直接转化反应机理的动力学表达式以及相关文献资料,对甲烷无氧催化反应实验数据进行处理,估算动力学模型参数。利用建立的动力学模型,在Aspen plus过程模拟软件中对甲烷无氧直接转化反应器进行分析与设计,得出合适的反应器设计温度及设计压力,对研究以及工程设计有一定的参考价值。 | 姚琦敏 江华东 | 2017 | 工业催化2017，25，12： | 0 |
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