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1、《聚丙烯操作》大赛理论题库一、填空题1.给电子体能与______发生反应生成。因此,着火时应使用_______或________进行灭火,而不能用灭火。答:水;甲醇;干粉;沙子;水。2.氮气脱氧床中,加氢气的作用______,加仪表风的作用是__________。答:还原脱氧剂(或者答再生);钝化脱氧剂。3.聚丙烯装置中氮气供应的方式有__________,__________,__________,__________,__________五种。答:普通氮气;过滤氮气;脱氧氮气;精制氮气;高压精制氮气。4.流化床反应器顶部膨胀的目的是___
2、_______,底部分布板的作用是__________。答:便于固体与气体的分离、支撑管嘴和循环气均匀分布。5.反应器循环气的作用是__________。答:输送原料和移出聚合热。6.聚丙烯装置中消除反应器静电的物质是_____。答:水和醇类。7.丙烯聚合遵循的反应机理包括__________,__________,__________,__________。答:链引发,链增长,链转移,链杀死8.干燥床再生介质为__________。答:热氮气9.反应器杀死剂CO使反应器里的______并__。答案:催化剂失效、停止聚合反应。10.氢气用于控
3、制聚合物的__________,如果氢气供料中断,反应必须马上__________,以减少__________的生成。H2流量是否中断可直接由________的指示来确定。答案:熔融指数、杀死、低熔融指数聚合物或者答不合格料、氢气流量计。11.MI的主要控制变量是__________,此比值增大,MI__________。答案:氢气/丙烯比、增大。andmunicipalpartyCommitteesessionplenarysession,addingmeasures,promotetheXXeconomic,socialandcultur
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