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采用ＴＰＤ、ＴＰＯ和ＴＰＲ等方法对比研究了改进铜基甲醇合成催化剂ＸＮＣ２０８和工业催化剂Ｃ２０７．结果表明，改进的ＸＮＣ２０８催化剂工作表面Ｃｕ￣＋活性位的浓度比未经改进工业催化剂Ｃ２０７高；在甲醇合成实际操作温度下，催化剂工作表面可以维持较高的、对甲醇合成反应能作出贡献的吸附氢和吸附ＣＯ等表面反应物种的稳态浓度，从而有利于甲醇合成速率的提高；改进的ＸＮＣ２０８催化剂工作表面的Ｃｕ￣＋位具有较大的价态稳定性，显示出较强的抗深度还原和抗氧化的双重性能，这与该催化剂具有持久的低温活性和高的热稳定性有着密切的联系。
The methods of TPD, TPO and TPR were used to study the improvement of copper-based methanol synthesis catalyst XNC208 and industrial catalyst C207. The results show that the concentration of Cu ~ + active sites on the working surface of the improved XNC208 catalyst is higher than that of the unmodified industrial catalyst C207. At the actual operating temperature of methanol synthesis, the working surface of the catalyst can be maintained at a high level, which can contribute to the methanol synthesis reaction Adsorption of hydrogen and adsorbed CO and other surface reaction species steady-state concentration, which is conducive to the rate of methanol synthesis; improved XNC208 catalyst surface Cu ~ + has a greater valence stability, showing a strong resistance to depth The dual properties of reduction and oxidation resistance are closely related to the catalyst’s long-term low temperature activity and high thermal stability.