[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fOKhjQ__G0_el7CqEqokaNdc3AKdDAPrvQgPkhQFUkSU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-04-21 02:20:38",139411252,[8,9,10,11],"多相系统需要考虑返混问题","均相系统需要使用内外扩散的有效因子","多相系统存在相间物质和热的传递","均相系统存在RTD",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},18,"fea5726d868c46644c6e16646277853d","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd9df20f0673dbe9028c957f9e9dc02f.png","化学反应工程（一）","306ce6a8ecbf4a41a8e229f47b7f6e54","第七章 章节测验","活塞流模型即能够描述均相系统也可以描述多相系统的流动行为,对比均相系统和气固多相反应系统,它们的区别在于( )",[21,33,42,51,60,69,78,87,96,99],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-04-21 02:20:37",139411244,[26,27,28,29],"dv=(6Vs\u002F&pi;)1\u002F2","dv =(6Vs\u002F&pi;)1\u002F3","dv =(Ss\u002F&pi;)1\u002F2","dv =(Ss\u002F&pi;)1\u002F3","体积当量直径为( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":31,"type":32},[],139411245,[37,38,39,40],"床层径向不均匀的空隙分布","流速偏低","化学反应的影响","催化剂颗粒外扩散的作用","固定床层内流体流动不均匀的主要原因包括( )",{"answer":43,"createTime":5,"id":44,"options":45,"question":50,"source":31,"type":32},[],139411246,[46,47,48,49],"大于","小于","等于","没规律","床层空隙率在靠近壁面处( )远离壁面处",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":31,"type":32},[],139411247,[55,56,57,58],"增大","减小","不变","不一定","填充均匀颗粒的床层,不考虑壁效应,其空隙率随粒子的增大而( )",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":31,"type":32},[],139411248,[64,65,66,67],"只有一相","均为轴向","所有固体粒子视为一相","流体和固体视为一相","一维拟均相平推流模型,拟均相是指( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":31,"type":32},[],139411249,[73,74,75,76],"流体与固体催化剂之间的传质和传热阻力不容忽略","流体与固体催化剂之间的传质和传热速率很大","流体与固体催化剂之间的浓度和温度差异很小","动力学表征上与均相反应相同","为了简化模型计算,拟均相模型被广泛应用于多相催化反应过程.如下事实中的哪些不符合拟均相模型( )",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":31,"type":32},[],139411250,[82,83,84,85],"全混流模型","拟均相模型","轴向扩散模型","离析流模型","在非均相催化反应中,如能忽略宏观传递现象对过程影响,则反应可视为( )",{"answer":88,"createTime":5,"id":89,"options":90,"question":95,"source":31,"type":32},[],139411251,[91,92,93,94],"湍流","对流","平推流","全混流","固定床反应器具有反应速度快、催化剂不易磨损、可在高温高压下操作等特点,床层内的气体流动可看成( )",{"answer":97,"createTime":5,"id":6,"options":98,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":100,"createTime":5,"id":101,"options":102,"question":107,"source":31,"type":32},[],139411253,[103,104,105,106],"粒子与流体间有温度差","粒子与流体间无温度差","床层径向有温度梯度","床层轴向有温度梯度","不属于气固相催化反应固定床反应器拟均相二维模型的特点是( )"]