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충전물의 혼합점 사이의 거리에 관한 연구
A Study on the Distance between Two Adjacent Mixing Points of Packing Materials
HWAHAK KONGHAK, June 1990, 28(3), 334-341(8), NONE
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Abstract
물질전달계수의 충전물의 크기에 대한 의존도를 명확히 하기 위한 기초자료를 수집하고 아룰러 기와에 고안한 바 있는 충전탑 내 유동현상 모사장치의 모사성능을 확인하기 위하여 내경 15cm 및 높이 135cm인 충전탑을 사용하여 ethylformate-acetone용액을 전환류 조건하에 증류하였다. 정상상태에서 실측된 액상 조성의 profile은 이론적인 profile과 잘 부합하였으며 이로부터 크기가 10.1, 15.18 및 19.40mm인 ceramic Rasching ring의 인접한 두 혼합점 사이의 거리를 결정하였고 물질전달에 대한 현상론적 연구에 본 모사장치가 유용함을 확인하였다. 혼합점 사이의 거리를 충저물의 크기에 따라 증가하였으며 이들 사이의 정량적인 관계식을 도출하였다.
Distillation experiments for binary system ethylformate-acetone were carried out using a 15cm I.D. and 135cm height packed column under total reflux condition. Comparing experimental and calculated concentrations profiles of liquid phase, distances between two adjacent mixing points of 10.1, 15.18 and 19.40mm ceramic Rasching rings were determined. The distance was increased according to the increasing dimension of packings and an empiri-cal correlation between them was proposed. The experimental results also convinced of the utility of the model column which simulates the flow phenomena in an industrial parcked column, proposed in previous article, for phenom-enological study of mass transfer.
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