| 摘要 |
1295402 Isomerizing hydrocarbons TEXACO DEVELOPMENT CORP 24 May 1971 [16 June 1970] 16657/71 Heading C5E [Also in Division B1] C 4 -C 7 hydrocarbons are hydroisomerized by contacting the hydrocarbons and hydrogen at 200‹ to 400‹ F. with a chlorided metal-alumina catalyst having a chlorine content of 3 to 15 wt. per cent and which has previously been treated under specified conditions with carbon monoxide or carbon dioxide (see Division B1). The specified hydroisomerization reactions are: (a) the isomerization of n-hexane to 3-methylpentane, 2-methylpentane, 2,3-dimethylbutane and 2,2-dimethylbutane at 250‹ to 350‹ F. and a hydrogen/hydrocarbon mole ratio of 0À05 : 1 to 5À0 : 1, (b) the isomerization of pentanes under the same conditions, and (c) the isomerization of butanes at 300‹ to 400‹ F. and a hydrogen/ hydrocarbon mole ratio of 0À1 : 1 to 1 : 1. The isomerizations are carried out at a pressure of 300 to 700 p.s.i.g. and a L.H.S.V. of 0À5 to 10. Other feeds mentioned are heptanes, methylcyclopentane, cyclohexane and dimethylcyclopentane. The examples all relate the isomerization of hexane using a chlorided platinumalumina catalyst. |
