In an acetylene hydrogenation reactor, the slowly falling catalyst activity affects ethylene plant performance in an operating cycle. To maximize the integral economic benefit in a regeneration cycle or achieve the longest regeneration cycle, the full cycle operation optimisation must be a long time-scale dynamic optimisation for which the method of control vector parameterization is adopted. Because of various uncertain disturbances, some distances must be reserved for process constraints and the desired effect of full cycle optimisation is hardly fully achieved. Thus, based on the strictly slowly-time-varying catalyst deactivation model, the operation margin consumption is estimated. Furthermore, a modified full cycle operation optimisation strategy is presented which takes the operation margin consumption as additional constraints. To obtain the maximum integral economic benefit or the longest regeneration cycle, we present a realizable full cycle optimized operation plan that considers the sufficient operation space reserved for uncertain disturbances.

在乙炔加氢反应器中，缓慢下降的催化剂活性影响操作周期中乙烯装置的性能。为了使再生循环中的整体经济利益最大化或实现最长的再生循环，全循环运行优化必须是长时间的动态优化，并采用控制矢量参数化方法。由于各种不确定的干扰，必须为过程约束保留一些距离，并且很难完全实现全周期优化的预期效果。因此，基于严格的随时间变化的催化剂失活模型，估计了操作裕量消耗。此外，提出了一种改进的全周期运行优化策略，该策略将运行裕量消耗作为附加约束。