运用程序升温脱附(TPD)及程序升温表面反应(TPSR)方法,对国产 J105型甲烷化催化剂上 CO 的甲烷化进行了研究。TPD 结果表明,CO 有三个脱附蜂,且400℃对应的脱附峰与反应有关,求得脱附活化能为60.52kJ/moL,CO 为一级脱附。TPSR 结果表明,CO 和 H_2在170—420℃反应生成 CH_4和 H_2O。两峰在近乎相同的温度下形成,并且具有类似形状。说明了 CH_4和H_2O 的生成速率被某一相同的基元反应所控制。 The methanation of CO on domestic J105-type methanation catalyst was studied by temperature-programmed desorption (TPD) and temperature-programmed surface reaction (TPSR). The results of TPD showed that there are three desorption bees in CO, and the corresponding desorption peak at 400 ℃ is related to the reaction. The activation energy of desorption is 60.52kJ / mol and the desorption of CO is first order. The results of TPSR showed that CO and H_2 reacted at 170-420 ℃ to form CH_4 and H_2O. The two peaks are formed at approximately the same temperature and have similar shapes. It shows that the formation rates of CH_4 and H_2O are controlled by some same elementary reactions.