SiH_(2)Cl_(2)反歧化反应精馏有利条件模拟  

Simulation of Favorable Conditions for SiH_(2)Cl_(2) Reverse Disproportionation Reaction Rectification

作　　者：明勇 庹如刚 李兵 彭中 向春林 Ming Yong;Tuo Rugang;Li Bing;Peng Zhong;Xiang Chunlin(Sichuan Yongxiang Co.,Ltd.,Sichuan,614800;Sichuan Yongxiang New Energy Co.,Ltd.,Sichuan,614800)

机构地区：[1]四川永祥股份有限公司,四川614800 [2]四川永祥新能源有限公司,四川614800

出　　处：《当代化工研究》2024年第23期35-37,共3页Modern Chemical Research

摘　　要：利用Aspen Plus软件,以非随机双液体(NRTL)物性方法和平衡级理论模型,对SiH_(2)Cl_(2)和SiCl_(4)反歧化反应精馏进行模拟分析,研究有利的工艺条件,为反歧化反应精馏的工艺设计和操作提供参考。结果表明,SiH_(2)Cl_(2)进料量1000 kg/h,SiCl_(4)进料量2000 kg/h,SiCl_(4)在40块塔盘进料,SiH_(2)Cl_(2)在61块塔盘进料,精馏操作压力0.1 MPa,质量回流比18,顶采量2668 kg/h为较优的反应条件,SiH_(2)Cl_(2)质量转化率99.16%,塔顶产品SiHCl_(3)质量纯度99.68%,塔釜产品SiCl_(4)质量纯度接近100%,较好地达到预期。Use Aspen Plus software,non-random two-liquid(NRTL)property method and equilibrium grade theoretical model to simulate and analyze the SiH_(2)Cl_(2)and SiCl_(4)reverse disproportionation distillation,studying favorable process conditions and providing reference for the process design and operation of the reverse disproportionation distillation.The results show that the optimal reaction conditions are SiH_(2)Cl_(2)feed rate of 1000 kg/h,SiCl_(4)feed rate of 2000 kg/h,SiCl_(4)feed at 40 trays,SiH_(2)Cl_(2)feed at 61 trays,distillation operating pressure of 0.1 MPa,mass reflux ratio of 18,top product yield of 2668 kg/h.The SiH_(2)Cl_(2)mass conversion rate is 99.16%,the top product SiHCl_(3)mass purity is 99.68%,and the bottom product SiCl_(4)mass purity is close to 100%,achieving the expected results to a good extent.

关 键 词：SiH_(2)Cl_(2) 反歧化 反应精馏 Aspen Plus NRTL 

分 类 号：TQ028.13[化学工程]