论文部分内容阅读
双反应段反应精馏塔内部复杂的物质和能量耦合在提升稳态性能的同时可能会导致动态性能的降低。以合成棕榈酸异丙酯的吸热反应为例,借助商业软件Aspen Dynamic研究双反应段反应精馏塔稳态性能与动态性能之间的关系。结果表明,与稳态性能最优的过程设计相比,合理选取顶部反应段塔板数以及减少底部反应段塔板数能够提高系统的热力学效率并增加传质推动力,从而实现稳态设计与动态控制之间的折衷。
Complex material and energy coupling within the dual-reaction column may increase the steady-state performance while reducing the dynamic performance. Taking the endothermic reaction of isopropyl palmitate as an example, the relationship between the steady-state performance and the dynamic performance of the dual-reactor reactive distillation column was studied with commercial software Aspen Dynamic. The results show that, compared with the optimal steady-state process design, the rational selection of the number of top reaction stage plates and reduction of the number of bottom reaction stage plates can increase the thermodynamic efficiency of the system and increase the mass transfer impetus to achieve steady-state design and The trade-off between dynamic control.