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首页> 外文期刊>AIChE Journal >Magnetic Emulation of Microgravity for Earth-Bound Multiphase Catalytic Reactor Studies—Potentialities and Limitations
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Magnetic Emulation of Microgravity for Earth-Bound Multiphase Catalytic Reactor Studies—Potentialities and Limitations

机译：结合地球的多相催化反应器研究的微重力电磁模拟－潜力和局限性

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摘要

A method is proposed to generate Earth-bound artificial microgravity in a controlled facility capable of emulating lunar/Martian gravity or microgravity for experiments on passive/reactive catalytic multiphase flows. Its applicability was illustrated for trickle beds where flowing gas and liquid experience artificial microgravity inside the bore of a superconducting magnet generating large gradient magnetic fields to compensate for gravity. Artificial gravity is realized by commuting into apparent gravity acceleration the magnetization force at work on common ''chemical engineering' non-magnetic fluids. The scaling property to be matched and maintained invariant in multiphase systems to achieve magnetic mimicry is phasic mass magnetic susceptibility. Hydrody-namic (liquid holdup, wetting efficiency, pressure drop) as well as catalytic reaction (conversion and selectivity) measurements were obtained. The main finding is a proof that magnetic fields affect reactor outcomes exclusively via hydrodynamic phenomena making them appealing proxies for emulating non-terrene reactor applications.
机译：提出了一种在可模拟月球/火星重力或微重力的受控设施中生成地球界人工微重力的方法，用于被动/反应催化多相流的实验。举例说明了其适用于滴流床，在滴流床中，流动的气体和液体在产生大梯度磁场以补偿重力的超导磁体孔内经受人工微重力作用。人工重力是通过将工作在普通“化学工程”非磁性流体上的磁化强度转换为视在重力加速度来实现的。在多相系统中要匹配并保持不变的缩放特性以实现磁模拟是相质量磁化率。获得了流体动力学（液体滞留率，润湿效率，压降）以及催化反应（转化率和选择性）的测量值。主要发现是磁场仅通过流体动力学现象影响反应堆结果的证据，使其成为模拟非三萜反应堆应用的有吸引力的代表。

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