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Novel methodology for targeting the optimal reactor and operating parameters based on the chemical system’s overall performance within catalyst lifecycle
Chemical Engineering Science ( IF 4.1 ) Pub Date : 2024-11-17 , DOI: 10.1016/j.ces.2024.120935
Liwen Zhao, Guilian Liu

Catalyst deactivation affects chemical system performance and reactor operation. A systematic method is proposed for targeting the optimal reactor, operating parameters, system performance, and catalyst service life, considering the catalyst deactivation. Relations between reactor performance, operating parameters, and running time are clarified based on the coupling analysis of the reactions, catalyst deactivation kinetics, and mass/energy balance. The influence of reactor fluctuation on energy cost and product output is explored by topological analysis, pinch analysis, and algebraic reasoning. A reactor-separator-heat exchanger network coupling frame is established to predict system performance and guide the reactor selection, catalyst regeneration, and system adjustments. The proposed method is intuitive and efficient and can be applied in the preparatory/operation stage. For the studied benzene hydrogenation process, the Plug Flow Reactor is suitable; the catalyst’s optimal service life is 2.08 y, achieving 4.4 % and 4.8 % decreases in annual cost and energy demand/carbon emission by real-time adjustments.

中文翻译:


根据催化剂生命周期内化学系统的整体性能确定最佳反应器和操作参数的新方法



催化剂失活会影响化学系统性能和反应器运行。提出了一种系统的方法,用于针对最佳反应器、运行参数、系统性能和催化剂使用寿命,同时考虑催化剂失活。根据反应、催化剂失活动力学和质量/能量平衡的耦合分析,阐明了反应器性能、运行参数和运行时间之间的关系。通过拓扑分析、捏分析和代数推理探讨了反应堆波动对能源成本和产品产量的影响。建立了反应器-分离器-换热器网络耦合框架,以预测系统性能并指导反应器选择、催化剂再生和系统调整。所提出的方法直观高效,可应用于准备/操作阶段。对于所研究的苯加氢过程,活塞流反应器是合适的;催化剂的最佳使用寿命为 2.08 年,通过实时调整,每年的成本和能源需求/碳排放量分别降低 4.4% 和 4.8%。
更新日期:2024-11-17
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