In a process for producing phenol, cyclohexylbenzene hydroperoxide is cleaved to produce a cleavage effluent stream comprising phenol and cyclohexanone and at least a portion of the cleavage effluent stream is fractionated to produce a first fraction richer in cyclohexanone than the cleavage effluent stream portion and a second fraction richer in phenol and depleted in cyclohexanone as compared with said cleavage effluent stream portion. At least a portion of the second fraction is then contacted with a dehydrogenation catalyst in a dehydrogenation reaction zone under dehydrogenation conditions effective to convert at least a portion of the cyclohexanone in said second fraction portion into phenol and cyclohexanol.
在生产
苯酚的过程中,
环己基苯醌过氧化物被分解,产生一个分解产物流,其中包括
苯酚和
环己酮,至少部分分解产物流被分馏,以产生一个第一馏分,比分解产物流富含
环己酮,和一个第二馏分,比分解产物流富含
苯酚,且缺乏
环己酮。然后,至少部分第二馏分与脱氢催化剂在脱氢反应区接触,在脱氢条件下有效地将第二馏分中的至少部分
环己酮转化为
苯酚和
环己醇。