改进甲烷水蒸汽转化催化剂的抗析炭性能,降低生产中所用的水碳比,可以大量节约能耗。这是近年来国内外重视的研究课题。 热力学分析指出,在甲烷水蒸汽眨应中存在CH_4裂解、CO歧化和CO的氢还原三个析炭反应。但在工业上现用的较高水碳比下(3.0～4.0),析炭以CH_4裂解为主,而其余两个反应表现为逆反应为主,即脱炭反应。动力学研究表明,甲烷水蒸汽反 Methane steam reforming catalyst to improve anti-carbon performance, reduce the water-carbon ratio used in the production, can save a lot of energy consumption. This is the research topic that attaches importance to at home and abroad in recent years. Thermodynamic analysis indicates that there are three carbon precipitation reactions, CH4 cleavage, CO disproportionation and hydrogen reduction of CO, in the water vapor blinking of methane. However, at the higher water-carbon ratio (3.0-4.0) currently used industrially, the CH_4 cracking is the main method for the analysis of carbon, while the other two reactions are dominated by the reverse reaction, ie, the decarbonization reaction. Kinetic studies have shown that methane is water vapor reversed