| 摘要 |
1,148,545. Regenerating hydrocarbon conversion catalysts. UNION CARBIDE CORP. 29 Sept., 1967 [15 Nov., 1966], No. 44326/67. Heading B1E. A coked dual function crystalline zeolitic based catalyst composition containing catalytically active metal e.g. Cu, Ag, An, Zn, Cd, Ti, Sn, Pb, V, Sb, Bi, Cr, Mo, W, Mu, Re, Fe, Co, Ni and Group VIII precious metals or oxides thereof, is regenerated by burning off the coke at 800‹F or above, cooling the catalyst to below 600‹F and partially rehydrating and equilisating the catalyst by inclusion of 4-18% water into its structure, and then reheating the cooled catalyst to 850‹F or above in a non-oxidising atmosphere. |
