Sabatier反应低温催化剂研究

目的 研制用于大气再生技术Sabatier二氧化碳还原反应的低温催化剂，以降低Sabatier反应的起动温度。方法 从催化剂活性组分，载体的选择，催化剂的制备方法和条件等方面进行低温催化剂的设计研制，建立催化剂性能测试装置，对体温催化剂的性能进行实验研究。结果 研制了以钌为催化剂活性组分，以活性r-Al2O3为载体的Sabatier反应低温催化剂，其反应起动温度可降到110度，起动时间8min，在温度为200－300度时，贫组分一次通过转化率均高于95％，产物水较为纯净，无色透明，呈中性。结论 Sabatier反应低温催化剂的性能达到了设计目的，有进一步研究的价值。

A Study of Low Temperature Catalyst for Sabatier Reaction

Objective. To develop a low temperature catalyst for the Sabatier CO2 reduction of the atmospheric regeneration system and lower the start-up temperature of the Sabatier reaction. Method. A low temperature catalyst was designed from the considerations of the active composition, the choice of the carrier, the production method and condition of the catalyst. Then the performance of the newly developed low temperature catalyst was tested. Result. A new low temperature catalyst for the Sabatier reaction using Ru as the active composition and using r-Al2O3 as the carrier was developed. The start-up temperature was lower than 110 degrees C and the start-up time was 8 min; The conversion efficiency of the lean component (H2 or CO2) was over 95 percent when the temperature of the reactor was from 200 degrees C to 300 degrees C; The reaction product water was nearly colorless, transparent and neutral. Conclusion. The test results showed that the goals of the design are achieved and it is worthwhile to make further studies on the low temperature catalyst.