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CMSMPR 결정화기의 결정화속도에 대한 연구
Kinetics of Sodium Chloride-Ethanol-Water System in CMSMPR Crystallizer
HWAHAK KONGHAK, June 1985, 23(3), 145-151(7), NONE
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Abstract
CMSMPR 결정화기에서 NaCl-에탄올-물 염석계의 결정화속도를 연구하였다.
정상상태에서의 결정입도분포를 population수지식으로부터 계산하여 성장속도와 핵생성속도를 구하였으며 임계교반속도와 RPM의 영향을 알 수 있도록 교반속도를 변화시켰다.
성장속도는 과포화도에 비례하였으며 임계교반속도이상에서 핵생성속도는 RPM의 3.2승에 비례하는 것을 알 수 있었으며, 이차핵생성의 영향이 지배적이었다.
정상상태에서의 결정입도분포를 population수지식으로부터 계산하여 성장속도와 핵생성속도를 구하였으며 임계교반속도와 RPM의 영향을 알 수 있도록 교반속도를 변화시켰다.
성장속도는 과포화도에 비례하였으며 임계교반속도이상에서 핵생성속도는 RPM의 3.2승에 비례하는 것을 알 수 있었으며, 이차핵생성의 영향이 지배적이었다.
The kinetic equations were experimentally studied for a salting out system of NaCl brine and ethanol using CMSMPR（Continuous Mixed Suspension Mixed Product Removal） crystallizer.
Experiment was carried out in the steady state with varying agitator speed to establish the critical agitator speed and RPM dependence on the nucleation rate.
While growth rate was found to be proportional to the supersaturation, beyond the critical agitator speed the nucleation rate was found to be proportional to 0.8 power of supersaturation and to suspension density and to 3.2 power of RPM.
Experiment was carried out in the steady state with varying agitator speed to establish the critical agitator speed and RPM dependence on the nucleation rate.
While growth rate was found to be proportional to the supersaturation, beyond the critical agitator speed the nucleation rate was found to be proportional to 0.8 power of supersaturation and to suspension density and to 3.2 power of RPM.
