| 摘要 |
1398086 Regenerated reforming catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 30 June 1972 [2 July 1971] 31156/71 Heading C5E [Also in Division B1] Hydrocarbons are converted in the presence of hydrogen at elevated temperature and pressure by contact with a catalyst comprising a Group VIII noble metal and an additional metal of electronegativity 1À6-2À0 on a carrier, which catalyst has been regenerated by heating in an oxidizing gas in two steps the second being at a higher temperature than the first, drying by heating in a non-reducing gas, cooling and reducing by heating in hydrogen (see Divisions B1-B2). Examples describe the reforming of naphtha using the regenerated catalysts, 10 p.p.m.w. of butyl mercaptan (based on the feed), 7 bars, H 2 /Feed molar ratio of 6, LHSV of 1À5 hr.<SP>-1</SP> and a temperature of 501-526‹ C. to give a C 5 <SP>+</SP> product of RON 101. |
