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관형반응기내의 Static Mixer의 효과

The Effect of Static Mixers in Tubular Reactors

HWAHAK KONGHAK, August 1976, 14(4), 231-238(8), NONE
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Abstract

관형반응기에 LPD mixer와 Kenics mixer를 삽입했을 때 체류시간분포, 압력강하, 전화율등에 미치는 영향을 비가역 2차반응에 대해 조사하였다. 가성소오다를 사용한 tracer실험으로부터 연속식 교반조반응모델로 simulation할 수 있었다. 속이 빈 튜브에 대해서는 전화율이 PER로부터 벗어나는 정도가 같은 체류시간에 대해 반응기 직경이 증가함에 따라 증가한다. 반면 Static mixer를 삽입했을 때에는 전화율이 PFR로부터 벗어나는 정도가 반응기 직경에 관계없이 7 %로 일정했다. LPD mixer를 삽입했을 때는 마찰계수가 빈 튜브의 그것보다 20내지 25배 정도 크게 나타났다.
The effect of low pressure drop (LPD) mixer and Kenics mixer inserted in a tubular reactor on the mean resistence time distribution, pressure drop, and conversion for an irreversible, second-order reaction were investigated. From the results of the tracer experiment, it was found that the reactor could be simulated with n-Continuous Stirred Tank Reactors in series model. For empty tube, the deviations in conversion from a plug flow reactor (PFR) increase with the increase in the reactor diameter for the same mean resisdence time, whereas, with static mixers inserted in the tube the discrepancy of the conversion from a PFR was found to be 7 % regardless the magnitude of the reactor diameter. When a LPD mixer was inserted, the friction factor of the empty tube increased by a factor of 20 to 25.

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