Control system for hydrogenation reactions
    2.
    发明授权
    Control system for hydrogenation reactions 失效
    氢化反应控制系统

    公开(公告)号:US3656911A

    公开(公告)日:1972-04-18

    申请号:US3656911D

    申请日:1970-06-08

    Inventor: HOBBS JAMES W

    CPC classification number: C07C5/08 Y10S208/01 Y10S585/956 Y10T436/12

    Abstract: A control system for a selective hydrogenation reaction computes the desired feed input temperature to the reactor in response to measurements of flow rate and analyses of the inlet and effluent streams. The temperature of the feed stream is regulated in response to a comparison of the computed temperature with a measured temperature of the feed stream.

    Abstract translation: 用于选择性氢化反应的控制系统响应于流速的测量和入口流和流出物流的分析,计算出反应器所需的进料输入温度。 响应于计算温度与进料流的测量温度的比较来调节进料流的温度。

    Control of two reflux streams in a fractional separation system
    3.
    发明授权
    Control of two reflux streams in a fractional separation system 失效
    在一个分离系统中控制两个反应流

    公开(公告)号:US3600282A

    公开(公告)日:1971-08-17

    申请号:US3600282D

    申请日:1968-11-19

    CPC classification number: B01D3/4227 B01D1/2815 B01D1/284 B01D1/2856

    Abstract: DETERMINE THE REQUIRED EXTERNAL REFLUX FLOW RATE. THE FLOW RATE OF ONE OF THE LIQUID STREAMS IS MANIPOLATED RESPONSIVE TO A DESIRED CONTROL CRITERIA WHILE THE FLOW RATE OF THE OTHER LIQUID STREAM IS MANIPULATED TO PROVIDE THE BALANCE OF THE EXTERNAL REFLUX.

    IN A FRACTIONAL DISTILLATION SYSTEM HAVING TWO SOURCES OF LIQUID REFLUX STREAMS WHICH WILL PARTIALLY VAPORIZE WHEN COMBINED FOR SUCH USE, THE FLOW RATE AND TEMPERATURE OF EACH OF THE LIQUID REFLUX STREAMS ARE MEASURED AND SIGNALS REPRESENTATIVE THEREOF ARE APPLIED TO A COMPUTER-COMTROLLER. THE SIGNALS ARE COMBINED TO ESTABLISH A SIGNAL REPRESENTATIVE OF THE PREFLASH TEMPERATURE OF THE COMBINED STREAM, WHICH IS THEN EMPLOYED IN AN INTERNAL REFLUX CONTROL TO

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