Structured catalyst supports and structured reactors offer interesting features to address heat and mass transport challenges in catalytic processes. The present work addresses the unique role of so-called interpenetrating periodic open cellular structures (interPOCS) as a geometrically flexible system enabling in operando adjustment of fluid flow characteristics. The interPOCS studied in this work consist of an interwoven structure of two POCS with a defined offset, each based on a diamond unit cell. The specific surface area and porosity, as the structures’ influential morphology parameters, were derived as a function of cell size and strut thickness, respectively. Both, POCS and interPOCS of different geometrical parameters were designed via computer-aided design, fabricated by fused deposition modeling and geometrically characterized. The influence of the structure offset and the geometrical dimension on the pressure drop was investigated in detail. From experimental data, the coefficients of an Ergun-type pressure drop correlation were fitted and a two cavity channel model was established to describe the dependency of the pressure drop on the offset position. The possibility of the structure shift in interPOCS represents a highly interesting and versatile option for in operando adjustment in catalytic processes.

结构化的催化剂载体和结构化的反应器提供了有趣的功能，以解决催化过程中的热量和传质难题。本工作解决了所谓的互穿周期开放式蜂窝结构（interPOCS）作为在操作中启用的几何灵活系统的独特作用。调整流体流动特性。在这项工作中研究的interPOCS由两个POCS的交织结构组成，两个POCS具有定义的偏移量，每个基于钻石晶胞。作为结构的影响形态参数的比表面积和孔隙率分别作为孔尺寸和支杆厚度的函数得出。几何参数不同的POCS和interPOCS均通过计算机辅助设计进行设计，通过熔融沉积建模制造并进行几何表征。详细研究了结构偏移量和几何尺寸对压降的影响。根据实验数据，拟合了Ergun型压降相关系数，并建立了两个腔道模型来描述压降对偏移位置的依赖性。在催化过程中进行操作调整。