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NTIS 바로가기Korean chemical engineering research = 화학공학, v.55 no.2, 2017년, pp.201 - 213
임영일 (한경대학교 화학공학과 지속가능공정기술연구센터) , (한경대학교 화학공학과 지속가능공정기술연구센터) , 박치균 (전진엔텍) , 이병돈 (전진엔텍) , 김병국 (전진엔텍) , 임동하 (생산기술연구원 동남지역본부)
Water is removed from crude oil containing water by using oil separator. This study aims to develop a three-dimensional (3D) Eulerian computational fluid dynamics (CFD) model to predict the separation efficiency of air-water-oil separator. In the incompressible, isothermal and unsteady-state CFD mod...
핵심어 | 질문 | 논문에서 추출한 답변 |
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O/W emulsion 으로부터 기름을 분리하기 위한 화학적 방법의 단점은 무엇인가? | 화학적 방법은 유수상분리를 증진시키는 물질(demulsifier)를 첨가하는 것이다[6]. 이 방법은 빠르지만, 비용이 많이 들고 첨가물을 제거해야 하는 단점을 갖는다. 물리적 방법은 중력 침강(gravity settler), 원심 침강(centrifugal settler), 공기부상(air floatation), 여과 및 분리막(filtration and membrane), 전기 침강(electrostatic settler), 초음파 침강(ultrasound settler) [4,6] 등이 있다. | |
O/W emulsion 으로부터 기름을 분리하기 위한 물리적 방법으로 무엇이 있는가? | 이 방법은 빠르지만, 비용이 많이 들고 첨가물을 제거해야 하는 단점을 갖는다. 물리적 방법은 중력 침강(gravity settler), 원심 침강(centrifugal settler), 공기부상(air floatation), 여과 및 분리막(filtration and membrane), 전기 침강(electrostatic settler), 초음파 침강(ultrasound settler) [4,6] 등이 있다. 이들 물리적 방법은 분산상 액적의 이동, 충돌, 합체를 도모하여 상분리를 향상시킨다[6]. | |
O/W emulsion의 특징은 무엇인가? | 물이 많이 포함된 원유 혼합물은 water-in-oil (W/O) 혹은 oil-in-water (O/W) emulsion으로 구분될 수 있다[2,3]. 기름은 분산상, 물은 연속상으로 간주되는 O/W emulsion 은 기름 액적 표면에 존재하는 친수성 물질들로 인하여 매우 안정적이며, 20 mm 이하의 미세 유적으로도 존재할 수 있다[2]. 환경오염을 발생시킬 수 있는 기름을 함유하는 산업 폐수도 석유화학, 제철, 제약, 해운, 음식업체에서 많이 발생한다[4,5]. |
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