隔板塔技术用于硅烷生产工艺的研究

Study on application of DWC technology in silane production process

通过对歧化法硅烷生产工艺和隔板塔精馏原理进行研究,开发出两种硅烷生产隔板塔工艺,两种技术均能最大限度地降低能耗和装置投资.研究表明,这两种技术较原工艺蒸汽消耗降低40%,较热耦合工艺蒸汽消耗降低超过20%;循环水消耗均大幅度降低;同时减少了精馏塔、再沸器和冷凝器的数量,降低了装置投资费用,具有投资价值.

Based on the further study on the disproportionation process and the distillation principle of divide wall column(DWC),two types of DWC processes are developed.Both processes can reduce energy consumption and device investment as possible.Data show that these two processes consume 40%less steam than the original process,and 20%less steam than the thermal coupling process.They also consume less cooling water.In addition,they need less distillation tower,reboiler and condenser,and cut down the investment in devices.