Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB2 3RA, United Kingdom; email:
Annu Rev Chem Biomol Eng. 2017 Jun 7;8:227-247. doi: 10.1146/annurev-chembioeng-061114-123222.
This review aims to illustrate the diversity of measurements that can be made using magnetic resonance techniques, which have the potential to provide insights into chemical engineering systems that cannot readily be achieved using any other method. Perhaps the most notable advantage in using magnetic resonance methods is that both chemistry and transport can be followed in three dimensions, in optically opaque systems, and without the need for tracers to be introduced into the system. Here we focus on hydrodynamics and, in particular, applications to rheology, pipe flow, and fixed-bed and gas-solid fluidized bed reactors. With increasing development of industrially relevant sample environments and undersampling data acquisition strategies that can reduce acquisition times to <1 s, magnetic resonance is finding increasing application in chemical engineering research.
本文旨在说明可以使用磁共振技术进行的各种测量,这些技术有可能为化学工程系统提供其他方法难以获得的见解。使用磁共振方法的一个显著优势是,可以在三维空间中、在不透明的系统中以及无需向系统中引入示踪剂的情况下,同时跟踪化学和传输过程。本文重点介绍了流体力学,特别是在流变学、管流、固定床和气固流化床反应器中的应用。随着与工业相关的样品环境的不断发展和欠采样数据采集策略的发展,这些策略可以将采集时间缩短至<1 秒,磁共振技术在化学工程研究中的应用越来越广泛。