| 摘要 |
76 Catalytic conversion of organic compounds wherein catalysts come into contact with steam is performed efficiently by using a catalyst which comprises an MFI type zeolite having a ratio of SiO2/(Al2O3+Ga2O3) of 20 to 200 in molar ratio, a ratio of Ga2O3/Al2O3 of 0 to 50 in molar ratio and a ratio of peak intensity of SiOH, IS1OH, to peak intensity of acidic OH, IH+ , determined from 1H-NMR, IS1OH/IH+, of 0 to 0.5 and loses little catalytic activity on exposure to steam. |
