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In situ magnetic resonance measurement of conversion, hydrodynamics and mass transfer during single- and two-phase flow in fixed-bed reactors.

Abstract：

:In recent years there has been increasing interest in applying magnetic resonance (MR) techniques in areas of engineering and chemical technology. The science that underpins many of these applications is the physics and chemistry of transport and reaction processes in porous materials. Key to the exploitation of MR methods will be our ability to demonstrate that MR yields information that cannot be obtained using conventional measurement techniques in engineering research. This article describes two case studies that highlight the power of MR to give new insights to chemical engineers. First, we demonstrate the application of MR techniques to explore both mass transfer and chemical conversion in situ within a fixed bed of catalyst, and we then use these data to identify the rate-controlling step of the chemical conversion. Second, we implement a rapid imaging technique to study the stability of the gas-liquid distribution in the low- and high-interaction two-phase flow regimes in a trickle-bed reactor.

journal_name

Magn Reson Imaging

journal_title

Magnetic resonance imaging

authors

Gladden LF,Alexander P,Britton MM,Mantle MD,Sederman AJ,Yuen EH

doi

10.1016/s0730-725x(03)00127-9

subject

Has Abstract

pub_date

2003-04-01 00:00:00

pages

213-9

issue

3-4

eissn

0730-725X

issn

1873-5894

pii

S0730725X03001279

journal_volume

21

pub_type

杂志文章

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