CAJ | 학술논문

采用Rh/γ-Al_2O_3催化剂,在固定床微型反应器上实验考察进料组成、反应温度和反应物总流量对甲烷氢氘交换的催化性能的影响.结果表明:在进料组成不变的条件下,当温度低于642 K时,甲烷的转化率随温度的升高而快速增加,当温度高于642 K时,甲烷的转化率不随温度的升高而变化;在反应温度为524～792 K、进料组成不变的条件下,当温度低于642 K时,甲烷的转化率随反应物流量的增加而明显减小,当温度高于642 K时,甲烷的转化率基本不随温度的升高而变化;在反应温度为524～792 K、反应物总流量不变的条件下,当HD/CH_4流量比在1.1～2.5间变化时,甲烷的转化率随HD/CH_4流量比的增加而减小.
채용Rh/γ-Al_2O_3최화제,재고정상미형반응기상실험고찰진료조성、반응온도화반응물총류량대갑완경도교환적최화성능적영향.결과표명:재진료조성불변적조건하,당온도저우642 K시,갑완적전화솔수온도적승고이쾌속증가,당온도고우642 K시,갑완적전화솔불수온도적승고이변화;재반응온도위524～792 K、진료조성불변적조건하,당온도저우642 K시,갑완적전화솔수반응물류량적증가이명현감소,당온도고우642 K시,갑완적전화솔기본불수온도적승고이변화;재반응온도위524～792 K、반응물총류량불변적조건하,당HD/CH_4류량비재1.1～2.5간변화시,갑완적전화솔수HD/CH_4류량비적증가이감소.
The catalytic properties of the Rh/γ-Al_2O_3 catalysts for the hydrogen-deuteri-um exchange of methane were tested with the fixed-bed micro-reactor. The conversion of methane is increased by increased reaction temperature when the temperature is less than 642 K, the conversion of methane is not changed with increasing temperature when the temperature is higher than 642 K at the same feed composition conditions. The con-version of methane is reduced with increasing the flow of reactants when the tempera-ture is less than 642 K, the conversion of methane is not changed with increasing tem-perature when the temperature is higher than 642 K at the same feed composition condi-tions and the temperature 524-792 K. The conversion of methane is significantly reduced with increasing the HD/CH_4 flowrate ratio at HD/CH_4 flowrate ratio of 1.1-2.5, and the feed composition is changed in the range of total flow of reactants under the sameconditions and the temperature of 524-792 K.