The Ni/Al2O3 catalysts were prepared by two impregnation methods: common and promoted with support salt, for CH4/CO2 reforming and studied by using TPR, TPD, TPMC（Temperature programmed methane decomposition carbon d...The Ni/Al2O3 catalysts were prepared by two impregnation methods: common and promoted with support salt, for CH4/CO2 reforming and studied by using TPR, TPD, TPMC（Temperature programmed methane decomposition carbon deposition） and activity test techniques. The results showed that the coke formation of the catalysts promoted with support salt（aluminium nitrate） was reduced to one sixth and the dispersion increased by 72.7% in comparison with catalyst prepared by common impregnation method. The interactions between Ni and Al with O on the surface of the support salt promoted catalyst appeared stronger.展开更多
The effect of CO on methanol synthesis from CO2 hydrogenation over Cu-Zn-Al cat-alysts have been investigated by TPSR-MS techniques and evaluated by testing the catalytic per-formance. The results indicated that CO ca...The effect of CO on methanol synthesis from CO2 hydrogenation over Cu-Zn-Al cat-alysts have been investigated by TPSR-MS techniques and evaluated by testing the catalytic per-formance. The results indicated that CO can Occupy part of CO2 adsorption site on the catalystsurface to restrain the reverse water gas shift reaction and promote methanol synthesis in CO2hydrogenation . Therefore it inereases the Inethanol selectivity and yield from CO2 hydrogenation.展开更多
文摘The Ni/Al2O3 catalysts were prepared by two impregnation methods: common and promoted with support salt, for CH4/CO2 reforming and studied by using TPR, TPD, TPMC（Temperature programmed methane decomposition carbon deposition） and activity test techniques. The results showed that the coke formation of the catalysts promoted with support salt（aluminium nitrate） was reduced to one sixth and the dispersion increased by 72.7% in comparison with catalyst prepared by common impregnation method. The interactions between Ni and Al with O on the surface of the support salt promoted catalyst appeared stronger.
文摘The effect of CO on methanol synthesis from CO2 hydrogenation over Cu-Zn-Al cat-alysts have been investigated by TPSR-MS techniques and evaluated by testing the catalytic per-formance. The results indicated that CO can Occupy part of CO2 adsorption site on the catalystsurface to restrain the reverse water gas shift reaction and promote methanol synthesis in CO2hydrogenation . Therefore it inereases the Inethanol selectivity and yield from CO2 hydrogenation.
