摘要
针对苯与丙烯合成异丙苯工艺流程中存在苯烯比高、能耗大的问题,提出了优化方案。首先在分离工序中的二异丙苯塔中增加一个侧线采出,通过回收重芳烃三异丙苯达到节能降耗的目的,单位产品冷凝器和再沸器负荷分别降低了19.55%和4.25%;更进一步地用泡点反应器替代原工艺流程中的固定床烃化反应器,利用苯与丙烯反应放热气化部分苯,降低分离工段分离任务从而实现节能效果,单位产品冷凝器和再沸器负荷分别降低了30.62%和22.82%;同时采用以上2方案更进一步降低能耗,单位产品冷凝器和再沸器负荷分别降低了31.38%和23.63%。
In an existing process of benzene and propylene to cumene,a side-outcome is added to the diisopropylbenzene(DIPB) distillation column in order to reclaim the trisopropylbenzene(TIPB),resulting in the energy cost per production decreasing.The cold and hot energy cost per production is decreased by 19.55% and 4.25%.Moreover,using a bubble-point reactor as a substitution to the original alkylation reactor in the cumene process.Benzene partially evaporates using the reacting heat then a decrease of separation l...
出处
《现代化工》
CAS
CSCD
北大核心
2008年第S1期144-148,共5页
Modern Chemical Industry
关键词
异丙苯
二异丙苯
三异丙苯
PROⅡ软件
泡点反应器
工艺流程优化
cumene
diisopropylbenzene(DIPB)
trisopropylbenzene(TIPB)
PROⅡ software
bubble-point reactor
process optimization