Reaktionstechnische und messtechnische Untersuchung stofftransportlimitierter, heterogenkatalysierter zweiphasiger Reaktionen im Kapilar-Mikroreaktor

悬浮催化利用1-100微米的催化剂颗粒，尚未在微反应器中应用，尽管在传质和传热以及催化剂的容易去除和再生方面有很好的特点。在该项目的第一阶段，开发了该反应堆概念所需的技术和设备。发展了一种用于确定液固传质的反应性测量技术。但结果表明，流体流动与颗粒运动的相互作用导致悬浮度不足，降低了流体-颗粒的传质性能，需要进一步采取措施加强颗粒的运动。在作为本申请主题的项目阶段，旨在研究使悬浮液更加均匀的各种技术方法。通过在分项目中讨论的新的段塞生成技术来提高颗粒浓度，并使该领域能够进行密切合作，可以进一步强化。此外，应研究通过协调催化颗粒的润湿行为来强化多相催化的液-液反应，并借助具有技术挑战性的化学反应系统来确定所采取措施的有效性。

Suspension catalysis, utilising catalyst particles in the size range 1-100 µm, has not yet been applied in microreactors, despite promising features in terms of mass- and heat transfer as well as facile removal and regeneration of the catalyst. During the first phase of the project, the techniques and equipment necessary for this reactor concept were developed. A reactive measurement technique for ascertaining liquid-solid mass transfer has been developed. However, the results indicate that the interaction between fluid flow and particle motion leads to an inadequate degree of suspension, lowering fluid-particle mass transport performance and further measures to enhance particle motion are necessary. In the project phase which is the subject of this application, it is intended to study various technical approaches for making the suspensions more homogeneous. Further intensification can be achieved by increasing particle concentrations through novel techniques of slug generation, dealt with in sub-project and enabling a close cooperation in this area. Moreover, intensifying heterogeneously catalysed liquid-liquid reactions by harmonising the wettability behaviour of the catalytic particles shall be investigated and the effectiveness of the measures adopted determined with the help of a technically challenging chemical reaction system.