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    • 59. 发明专利
    • AT453607T
    • 2010-01-15
    • AT04002145
    • 2004-01-31
    • BASF SE
    • HEIDEMANN THOMASULONSKA ARMINSTAECK BIANCA
    • C07C2/10
    • In a nickel-catalysed method for the oligomerization of 4-8C alkenes in a series of 2 or more reactors operating under adiabatic conditions, the feed stream is split and the part-streams are fed into at least 2 of the reactors with the addition of fresh feed so that the temperature in any reactor is not more than 20[deg]C above that in any of the other reactors. A method for the production of oligomers of 4-8C alkenes from a hydrocarbon feed stream containing such alkenes, on a nickel-containing heterogeneous catalyst in a series of 2 or more reactors operating under adiabatic conditions at 30-280[deg]C and 1-300 bar, where: (a) the feed stream is introduced into reaction zone 1 at a temperature T1, (b) the temperature increases in each zone, and (c) if this increase is more than T1 + 20[deg]C, the temperature is adjusted to within the range T1 +- 20[deg]C before the mixture is fed into the next zone. In this method, the feed stream is split and the part-streams are fed into at least two of the reactors with the addition of fresh feed so that the temperature in any one reactor is not more than 20[deg]C above that in any of the other reactors.