A new method for preparing supported metal oxide catalyst has been studied by cool plasma technique and TiO 2/ γ Al 2O 3 catalyst has been prepared with ECR microwave plasma device. The activity of the catalyst was a...A new method for preparing supported metal oxide catalyst has been studied by cool plasma technique and TiO 2/ γ Al 2O 3 catalyst has been prepared with ECR microwave plasma device. The activity of the catalyst was appraised by dehydrogenative coupling of methane on pulsed discharge plasma catalysis device. The experimental results showed that the performance of the catalyst obviously is better than that of the same catalyst prepared by conventional method. In addition, the effect of plasma parameters on the catalytic performance was also studied, and the results indicated that it is a method for catalyst preparation with brilliant prospects.展开更多
At atmospheric pressure and ambient temperature, the hydrogenation coupling of methane was studied by using pulse corona plasma and its synergism with catalyst. The results showed that (i) under pulse corona plasma, t...At atmospheric pressure and ambient temperature, the hydrogenation coupling of methane was studied by using pulse corona plasma and its synergism with catalyst. The results showed that (i) under pulse corona plasma, the coupling of methane could be fulfilled by the addition of hydrogen, and with the increase of the amount of hydrogen, the conversion of methane and the yield of C2 hydrocarbon increased, and the deposit of carbon decreased; (ii) the conversion of methane was affected by pulse voltage and repeated frequency; (iii) in the system, the addition of Ni/γ-Al2O3 could improve the distribution of C2 hydrocarbon; (iv) the activity of Ni/γ-Al2O3 prepared by cold plasma was better than that by chemical methods. The experiment opened up a new technical route of the coupling of methane.展开更多
文摘A new method for preparing supported metal oxide catalyst has been studied by cool plasma technique and TiO 2/ γ Al 2O 3 catalyst has been prepared with ECR microwave plasma device. The activity of the catalyst was appraised by dehydrogenative coupling of methane on pulsed discharge plasma catalysis device. The experimental results showed that the performance of the catalyst obviously is better than that of the same catalyst prepared by conventional method. In addition, the effect of plasma parameters on the catalytic performance was also studied, and the results indicated that it is a method for catalyst preparation with brilliant prospects.
文摘At atmospheric pressure and ambient temperature, the hydrogenation coupling of methane was studied by using pulse corona plasma and its synergism with catalyst. The results showed that (i) under pulse corona plasma, the coupling of methane could be fulfilled by the addition of hydrogen, and with the increase of the amount of hydrogen, the conversion of methane and the yield of C2 hydrocarbon increased, and the deposit of carbon decreased; (ii) the conversion of methane was affected by pulse voltage and repeated frequency; (iii) in the system, the addition of Ni/γ-Al2O3 could improve the distribution of C2 hydrocarbon; (iv) the activity of Ni/γ-Al2O3 prepared by cold plasma was better than that by chemical methods. The experiment opened up a new technical route of the coupling of methane.
