其单程转化率一般是低的，因此有必要使气体循环以提高总的产品收率。
The conversion-per-pass is generally low, thus necessitating gas recycle to increase overall product yield.
随着苯丙烯比的升高，丙烯单程转化率上升，异丙苯选择性上升，副反应降低。
With the increase of R, the propene conversion of the single stage and the selectivity of cumene increase and the side reaction decreases.
在此条件下，苯乙烯单程转化率可达93.5%，二芳基乙烷的选择性为78.9%。
Styrene conversion of 93.5% and selectivity to diphenylethylane of 78.9% were attained under the optimum condition.
结果表明，该引发剂的应用不但改善了产品的各项性能指标，而且提高了装置的单程转化率，具有较好的效益。
The outcome has indicated that the initiating agent not only can improve the product performance, but also increase conversion per pass of the plant, it has a high economic and social benefit.
此时，高碳烷基铝单程置换转化率大于85％；
The results show that the single process conversion of high alkylaluminium is more than 85%.
采用本发明的催化剂可获得较高的烃类转化率和乙烯丙烯单程收率。
After the catalyst is adopted, high conversion rate of hydrocarbon and high once through yield of ethylene and propylene can be achieved.
采用本发明的催化剂可获得较高的烃类转化率和乙烯丙烯单程收率。
After the catalyst is adopted, high conversion rate of hydrocarbon and high once through yield of ethylene and propylene can be achieved.
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