【简答题】
进入R202的丙烯有哪几股
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答案
进入R202的丙烯有三股：
（1）在流量控制（FIC20501）下去R202轴流泵P202的冲洗丙烯；
（2）在压力控制（PIC20301）下去E203维持反应器压力的丙烯；
（3）与反应器密度控制器串级的流量控制（FIC20301）直接去R202的丙烯(包含上面两股)
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