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Hydrodynamics and Mass Transfer of Multiphase Packed-Bed Microreactors

多相填充床微反应器的流体动力学和传质

基本信息

批准号：
1808457
负责人：
金额：
--
依托单位：
University College London
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2016
资助国家：
英国
起止时间：
2016 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-1808457
关键词：
Hydrodynamics Mass Transfer Multiphase Packed

项目摘要

Laboratory studies of catalyst and reaction performance are routinely performed in reactors that are orders of magnitude smaller than those in commercial practice. Reducing the scale of experimentation has several advantages, such as lower equipment costs, lower material amounts and intrinsically lower safety risks. When scaling down three-phase reactors, the hydrodynamics change significantly to those in industrial and laboratory reactors due to a shift in the dominant forces to viscous and surface tension forces. As a result, the hydrodynamics and correlations available in the literature for conventional scale trickle-bed reactors cannot be extrapolated. To this end, this project seeks to develop continuous flow microfluidic systems for the investigation of hydrodynamic and mass transfer behaviour in multiphase packed bed reactors. Novel on-chip analytical technologies for reactor characterisation will be developed and used to characterise reactor performance. This will involve the use of spectroscopy to determine residence time distributions, the results of which can be used determine axial and radial dispersion characteristics as well as develop mass transfer correlations applicable to micro-packed bed reactors. Simulation tools will also be used to effectively design micro-reactors for hydrodynamic and mass transfer purposes.

催化剂和反应性能的实验室研究通常在比商业实践中的反应器小几个数量级的反应器中进行。减少实验规模有几个优点，如降低设备成本，降低材料量和本质上降低安全风险。当按比例缩小三相反应器时，由于主导力向粘性力和表面张力的转变，流体动力学显著改变为工业和实验室反应器中的流体动力学。因此，传统规模的滴流床反应器的文献中的流体力学和相关性不能外推。为此，该项目旨在开发连续流动微流体系统，用于多相填充床反应器中的流体动力学和传质行为的研究。将开发用于反应器表征的新型片上分析技术，并用于验证反应器性能。这将涉及使用光谱来确定停留时间分布，其结果可以用于确定轴向和径向分散特性以及开发适用于微填充床反应器的传质相关性。模拟工具也将用于有效地设计用于流体动力学和传质目的的微反应器。

项目成果

期刊论文数量（4）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Catalytic Teflon AF-2400 membrane reactor with adsorbed ex situ synthesized Pd-based nanoparticles for nitrobenzene hydrogenation

DOI：
10.1016/j.cattod.2020.03.062
发表时间：
2021-02
期刊：
Catalysis Today
影响因子：
5.3
作者：
B. Venezia;L. Panariello;Daniel Biri;Juhun Shin;S. Damilos;Anand N. P. Radhakrishnan;C. Blackman;A. Gavriilidis
通讯作者：
B. Venezia;L. Panariello;Daniel Biri;Juhun Shin;S. Damilos;Anand N. P. Radhakrishnan;C. Blackman;A. Gavriilidis

Silicon microfabricated reactor for operando XAS/DRIFTS studies of heterogeneous catalytic reactions

用于多相催化反应原位 XAS/DRIFTS 研究的硅微加工反应器