METHOD AND SYSTEM FOR REGULATING A CONTINUOUS CRYSTALLIZATION PROCESS
    7.
    发明申请
    METHOD AND SYSTEM FOR REGULATING A CONTINUOUS CRYSTALLIZATION PROCESS 审中-公开
    用于调节连续结晶过程的方法和系统

    公开(公告)号:US20090159257A1

    公开(公告)日:2009-06-25

    申请号:US12341270

    申请日:2008-12-22

    IPC分类号: G05D23/19 G05D23/00

    摘要: A process and a system for regulating a continuous crystallization process which can be used especially for preparation of bisphenol A comprises a heat exchanger connected in a circuit to a crystallization apparatus. A heat exchange performance of the heat exchanger to cool an exit stream of the crystallization apparatus is established as a function of a feed stream supplied, in order to deliver by regulation an exit temperature of the exit stream. The heat exchange performance is calculated, and the calculated heat exchange performance is established in the heat exchanger with a time delay. The time delay prevents large temperature differences in the heat exchanger, so as to prevent fouling in the heat exchanger. With improved regulation quality, this leads to fewer production shutdowns and hence to improved productivity.

    摘要翻译: 可以特别用于制备双酚A的用于调节连续结晶方法的方法和系统包括在电路中连接到结晶装置的热交换器。 建立了用于冷却结晶装置的出口流的热交换器的热交换性能,作为供应的进料流的函数,以便通过调节输出出口流的出口温度。 计算热交换性能,并在热交换器中建立计算出的热交换性能,具有时间延迟。 时间延迟防止热交换器中的温度差大,以防止热交换器中的结垢。 随着调节质量的提高,这导致更少的生产关闭,从而提高了生产率。