Optimizing catalyst supports at single catalyst pellet and packed bed reactor levels: A comparison study. Issue 8 (15th March 2021)

• Record Type: Journal Article
• Authors: Liu, Xinlei; Qin, Bo; Zhang, Qunfeng; Ye, Guanghua; Zhou, Xinggui; Yuan, Weikang
• Is Part Of: AIChE journal. Volume 67:Issue 8(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-03-15
• Subjects: catalyst pellet -- dry reforming of methane -- optimization -- packed bed reactor -- pore network structure; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; 660.28
• DOI: 10.1002/aic.17163
• Languages: English
• ISSNs: 0001-1541

Abstract

Abstract: Using a catalyst support with optimal pore network and pellet structures is critical to the success of an industrial heterogeneous catalyst. This work optimizes the catalyst support of a dry reforming of methane catalyst at packed bed reactor level, that is, effects of concentration and temperature gradients in the reactor are accounted for. Meanwhile, the optimization at reactor level is also compared with that at single catalyst pellet level where fixed concentrations and temperature are imposed on the pellet surface. Results show that the optimal structures obtained at pellet level are similar to these acquired at reactor level, but the improvements in catalyst performance calculated at pellet level are overestimated. Therefore, when designing an industrial catalyst pellet, the preferred structures can be obtained from the optimization at pellet level, but the corresponding improvements in catalyst performance should be evaluated at reactor level to reflect the reality in industry.