서지주요정보
저농도 에멀젼 오일 분리를 위한 합체탑의 효율 평가모델 개발 = A study on an efficiency estimation model of coalescence column for separation of oil from low-concentration emulsion solution
서명 / 저자 저농도 에멀젼 오일 분리를 위한 합체탑의 효율 평가모델 개발 = A study on an efficiency estimation model of coalescence column for separation of oil from low-concentration emulsion solution / 유정우.
저자명 유정우 ; Yoo, Jeong-Woo
발행사항 [대전 : 한국과학기술원, 1992].
Online Access 제한공개(로그인 후 원문보기 가능)원문

등록번호

8002996

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 92002

도서상태

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#### 초록정보

Dispersed oil droplets from the low-concentration emulsion solution of dodecane-water system were separated using a coalescence column packed with polystyrene bead of 0.5 mm diameter. The separation efficiency defined by the fraction of removed oil droplets were determined by counting the droplet numbers and by varying the column length, the droplet sizes, the feed concentrations. At fixed feed concentrations and solution velocity, the efficiency increases as the column length and particle size increase, but it decreases as the velocity increases. A mathematical model for the estimation of separation efficiency was proposed under the assumption of two step reactions, coagulation and coalescence. From the model, the efficiency($E_f$) can be related to the initial concentration and residence time (τ =εL/v) by $In (1-E_f) - KC_{so}E_f = -KK_c^\tau$ where K and $K_c$ are the rate constants of coagulation and coalescence respectively. From the data reduction, the parameter model showed the good fittability with the experimental data. Further, coagulation rate constant increases exponentially with the increase of emulsion size, while it decreases with the increase of solution velocity. On the other hand, the coalesence rate constant slightly decreases with emulsion size, but nearly constant within solution velocity examined (0.2 ~ 2 cm/s).

#### 서지기타정보

청구기호 {MCE 92002 vii, 76 p. : 삽도 ; 26 cm 한국어 부록 수록 저자명의 영문표기 : Jeong-Woo Yoo 지도교수의 한글표기 : 김종덕 지도교수의 영문표기 : Jong-Duk Kim 학위논문(석사) - 한국과학기술원 : 화학공학과, 참고문헌 : p. 68-71 Enulsions. 분리. --과학기술용어시소러스 유화. --과학기술용어시소러스 Separation (Technology)
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