The catalytic performances of methanol steam reforming reactions on CuZn(Zr)AIO catalysts were studied. When the ZrO2 promoter was added to a CuZnAIO catalyst, its methanol conversion, H2 production and H2 selectivity...The catalytic performances of methanol steam reforming reactions on CuZn(Zr)AIO catalysts were studied. When the ZrO2 promoter was added to a CuZnAIO catalyst, its methanol conversion, H2 production and H2 selectivity improved greatly. By using the (?)COPZr-2 catalyst as an example, which exhibited the best catalytic performance, the optimized reaction conditions were established to be: 250℃, 0.1 MPa, H2O/MeOH=1.3, WHSV=3.56 h-1, and without carrier gas. A 150 h stability test of the (?)COPZr-2 catalyst showed that the catalyst had good stability, as the methanol conversion and H2 production could be kept at 88% and 83% respectively. Moreover, outlet H2 and CO contents were>63% and 0.20%-0.31%, respectively.展开更多
基金This work is supported by the National Science Foundation of Guangdong Province(000435)Research Foundation for the Doctoral Program of Higher Education of China(20010561003),Science and Technology Program of Guangzhou(2001J1-C0211)
文摘The catalytic performances of methanol steam reforming reactions on CuZn(Zr)AIO catalysts were studied. When the ZrO2 promoter was added to a CuZnAIO catalyst, its methanol conversion, H2 production and H2 selectivity improved greatly. By using the (?)COPZr-2 catalyst as an example, which exhibited the best catalytic performance, the optimized reaction conditions were established to be: 250℃, 0.1 MPa, H2O/MeOH=1.3, WHSV=3.56 h-1, and without carrier gas. A 150 h stability test of the (?)COPZr-2 catalyst showed that the catalyst had good stability, as the methanol conversion and H2 production could be kept at 88% and 83% respectively. Moreover, outlet H2 and CO contents were>63% and 0.20%-0.31%, respectively.
