마이크로파 조사 가열에 의한 Oil-Water 에멀젼의 분리

홍주희; 김병식; 김덕찬; Joo-Hee Hong; Byoung-Sik Kim; Dok-Chan Kim

Korean Chemical Engineering Research, Vol.42, No.6, 662-668, December, 2004

Export Citation

마이크로파 조사 가열에 의한 Oil-Water 에멀젼의 분리

Demulsification of Oil-Water Emulsions by Microwave Irradiation

홍주희 ^†, 김병식 ¹, 김덕찬

서울시립대학교 화학공학과, 130-743 서울시 동대문구 전농동 90
¹동국대학교 생명·화공학과, 100-715 서울시 중구 필동 3가 26

Joo-Hee Hong^†, Byoung-Sik Kim¹, and Dok-Chan Kim

Department of Chemical Engineering, The University of Seoul, 90, Cheonnong-dong, Dongdaemun-gu, Seoul 136-743, Korea
¹Department of Chemical & Biochemical Engineering, Dongguk University, 26, 3-ga, Pil-dong, Chung-gu, Seoul 100-715, Korea

E-mail:

초록

본 연구에서는 마이크로파 가열에 의한 O/W형 에멀젼의 분리 특성(오일 회수율, 승온 특성, 분산 입자의 변화)을 실험에 의하여 검토하였다. 720 W의 마그네트론 출력을 갖는 마이크로파 오븐에 의하여 20, 30 그리고 50%(v/v)O/W형 에멀젼을 120초 동안 연속적으로 조사 후, 1시간 중력 침강시켜 각각 75, 84 그리고 95%의 오일 회수율을 얻었으며, 승온 속도는 0.478, 0.505 그리고 0.602(℃/s)로 오일 함량이 많은 50%(v/v)O/W형 에멀젼에서 크게 나타났다. 또한, 온도 상승에 의한 점도 감소가 일어나 오일 입자간 합체가 촉진되고 분산 입자의 직경이 증가하였다.

The studies of oil recovery, size of dispersed droplets and temperature profile during microwave demulsification were carried out. Microwave demulsification has no secondary pollution problems, because no chemical additives are required. Also, because microwave selectively heats emulsion, faster separation rate and less energy consumption than conventional heating are possible. As the 20, 30, and 50%(v/v)O/W emulsions were continuously irradiated by microwave for 120 seconds, percentages of oil recovery after 1hr settlement were 75, 84, and 95% respectively. Also, the rates of temperature rise were 0.478, 0.505, and 0.602(oC/s) respectively. Likewise, because the viscosity of emulsion was decreased with temperature rise, the diameter of dispersed oil droplet was increased and the coalescence of it was accelerated. Therefore, demulsification was quickly accomplished.

Keywords:Demulsification;Microwave;Separation;Heating;Emulsion

[References]

Lai MP, Demulsification and Activated Carbon Regeneration using Microwave Radiation," Ph.D. Dissertation, Louisiana Tech. Univ (1990)
Little RC, Patterson RL, Environ. Sci. Technol., 12(5), 584 (1978)
Arnold K, Stewart M, Surface Production Operation, 1, Gulg Pub. Co., Huston (1986)
Petrowski GE, J. Am. Oil Chem. Soc., 51(5), 110 (1974)
Klaila WJ, Method and Apparatus for Controlling Fluency of High Viscosity hydrocarbon Fluids," U.S.Patent No. 4,067,683 (1978)
Wolf NO, Use of Microwave Radiation in Separating Emulsions and Dispersions of Dispersions of Hydrocarbons and Water," U.S.Patent No. 4,582,629 (1986)
Fang CS, Chang BKL, Lai PMC, Klaila WJ, Chem. Eng. Commun., 73(1), 227 (1988)
Fang CS, Lai PMC, Chang BKL, Environ. Prog., 8(4), 235 (1989)
Fang CS, Lai PMC, J. Microwave Power & Electromagnetic Energy, 30(1), 46 (1995)
Samardzija N, Microwave Heater-treater for Separation Applications," Presented at AIChE 1991 Annual Meeting, Electric Driven Separation Symposium, Tech. (1991)
Redforad KW, Continuous Demulsification of Emulsions using Microwaves," M.S. Dissertation, University of Alberta (1993)
Lenore SE, Arnold EG, Andrew DE, Standard Method for the Examination of Water and Wastewater, 20th ed., Am. Pub. Health Assoc., Washington (1998)
Peterson ER, Microwave; Theory and Application in Materials Process IV, ACS(American Ceramic Society), OH (2001)

[Referenced By]

[Related Articles]

[1] Lai MP, Demulsification and Activated Carbon Regeneration using Microwave Radiation," Ph.D. Dissertation, Louisiana Tech. Univ (1990)

[2] Little RC, Patterson RL, Environ. Sci. Technol., 12(5), 584 (1978)

[3] Arnold K, Stewart M, Surface Production Operation, 1, Gulg Pub. Co., Huston (1986)

[4] Petrowski GE, J. Am. Oil Chem. Soc., 51(5), 110 (1974)

[5] Klaila WJ, Method and Apparatus for Controlling Fluency of High Viscosity hydrocarbon Fluids," U.S.Patent No. 4,067,683 (1978)

[6] Wolf NO, Use of Microwave Radiation in Separating Emulsions and Dispersions of Dispersions of Hydrocarbons and Water," U.S.Patent No. 4,582,629 (1986)

[7] Fang CS, Chang BKL, Lai PMC, Klaila WJ, Chem. Eng. Commun., 73(1), 227 (1988)

[8] Fang CS, Lai PMC, Chang BKL, Environ. Prog., 8(4), 235 (1989)

[9] Fang CS, Lai PMC, J. Microwave Power & Electromagnetic Energy, 30(1), 46 (1995)

[10] Samardzija N, Microwave Heater-treater for Separation Applications," Presented at AIChE 1991 Annual Meeting, Electric Driven Separation Symposium, Tech. (1991)

[11] Redforad KW, Continuous Demulsification of Emulsions using Microwaves," M.S. Dissertation, University of Alberta (1993)

[12] Lenore SE, Arnold EG, Andrew DE, Standard Method for the Examination of Water and Wastewater, 20th ed., Am. Pub. Health Assoc., Washington (1998)

[13] Peterson ER, Microwave; Theory and Application in Materials Process IV, ACS(American Ceramic Society), OH (2001)