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    • 71. 发明授权
    • Preparation of oligomers of alkenes having from 4 to 8 carbon atoms
    • 具有4至8个碳原子的烯烃的低聚物的制备
    • US07161054B2
    • 2007-01-09
    • US10775064
    • 2004-02-11
    • Thomas HeidemannArmin UlonskaBianca Stäck
    • Thomas HeidemannArmin UlonskaBianca Stäck
    • C07C2/10
    • C07C2/10C07C2523/755
    • Process for preparing oligomers of alkenes having from 4 to 8 carbon atoms from a feed stream comprising such alkenes or hydrocarbon streams in which such alkenes are present over a nickel-containing, heterogeneous catalyst in n successive adiabatically operated reactors, where n is 2 or an integer greater than 2, at from 30 to 280° C. and pressures of from 1 to 300 bar, where the feed stream has a temperature Tin when it enters the first reaction zone, experiences a temperature increase in each reaction zone and, if this temperature increase is more than Tin+20° C., is brought to a temperature in the range Tin±20° C. before it enters a subsequent reaction zone, wherein the feed stream is divided and the feed substreams obtained in this way are fed to the 2 reactors, or if more than 2 reactors are used to at least 2 of the reactors, with addition of fresh feed in such a way that the temperature in one of the reactors is at most 20° C. higher than that in each of the other reactors used.
    • 从包含这种烯烃或烃流的进料流中制备具有4至8个碳原子的烯烃的低聚物的方法,其中这些烯烃在n个连续的绝热操作的反应器中存在于含镍的非均相催化剂上,其中n为2或 整数大于2,在30至280℃,压力为1至300巴,其中进料流在其进入第一反应区时具有中的温度T ,经历升温 在每个反应区域中,如果该温度升高超过+ 20℃的温度,则温度在±20℃的范围内。 在其进入随后的反应区域之前,其中进料流被分开,并且以这种方式获得的进料子流进料到2个反应器中,或者如果使用多于2个反应器至少2个反应器,加入新鲜进料 使得其中一个反应器中的温度比t高至多20℃ 每个使用的其他反应堆的帽子。