多进料脱甲烷塔进料位置切换的控制策略

摘要

进料位置和控制器的操作参数是显著影响精馏塔单元分离和节能效率的重要参数.为此提出一种动态多进料切换和控制器参数切换控制策略.在脱甲烷塔系统动态模拟和控制的基础上,对脱甲烷塔多进料位置切换的控制方案进行验证,并分别实现对进料位置和控制器参数的分步和同步切换.结果表明:同步切换方法更有利于实现多进料位置和控制器参数的切换.%Feeding locations and controller's operating parameters significantly affect separation efficiency and energy saving of the distillation,a control strategy for the feeding location switching and that of controller's op-erating parameters was proposed.Having the dynamic simulation and control of the demethanizer system based to verify the control strategy of switching demethanizer's locations and to implement the switch step by step and synchronously respectively shows that,the synchronous switching method is more convenient to realize the switch of the multiple feed locations and controller parameters.