Clean Technology (청정기술)

The Korean Society of Clean Technology (한국청정기술학회)
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Preparation and Characterization of Domestic Alkali-Surfactant-Polymer Solution for Enhanced Oil Recovery

국내산 계면활성제를 이용한 오일회수증진용 알칼리-계면활성제-폴리머용액의 제조 및 특성평가

  • Lee, Sang Heon (Department of Applied Chemistry and Biological Engineering, Chungnam National) ;
  • Kim, Sang Kyum (Graduate School of Green Energy Technology, Chungnam National University) ;
  • Park, Ji Yun (Department of Applied Chemistry and Biological Engineering, Chungnam National) ;
  • Lee, Do Kyun (Department of Applied Chemistry and Biological Engineering, Chungnam National) ;
  • Hwang, Soon Choel (Graduate School of Green Energy Technology, Chungnam National University) ;
  • Bae, Wisup (Department of Energy and Mineral Resources Engineering, Sejong University) ;
  • Kim, In Won (Department of Applied Chemical Engineering, Konkuk University) ;
  • Rhee, Young Woo (Graduate School of Green Energy Technology, Chungnam National University)
  • 이상헌 (충남대학교 바이오응용화학과) ;
  • 김상겸 (충남대학교 녹색에너지기술전문대학원) ;
  • 박지윤 (충남대학교 바이오응용화학과) ;
  • 이도균 (충남대학교 바이오응용화학과) ;
  • 황순철 (충남대학교 녹색에너지기술전문대학원) ;
  • 배위섭 (세종대학교 에너지자원공학과) ;
  • 김인원 (건국대학교 화학공학과) ;
  • 이영우 (충남대학교 녹색에너지기술전문대학원)
  • Received : 2013.09.17
  • Accepted : 2013.10.23
  • Published : 2013.12.31
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Abstract

Alkali-surfactant-polymer (ASP) solution was manufactured by using the domestic surfactants for enhanced oil recovery. Domestic surfactants such as linear alkylbenzene sulfonic acid (LAS) and dioctyl sulfosiuccinate (DOSS) were used. This surfactants were purchased from AK chemtech Co., Ltd. (Korea). LAS and DOSS were blended and the ratio of LAS to DOSS are 1:1 and 2:1. Decane was used as a model compound of the crude oil. Surfactant solution and decane were blended to analyze microemulsion. Brine-oil-surfactant are mixed at varying concentration of brine from 0.8 to 3.6 wt.%. Increasing salinity causes the phase transition of microemulsion from water to middle to oil. Also, by measuring the surface tension and interfacial tension using pendent drop tensiometer and Huh's equation optimal ratio of the ASP solution was determined.

국내산 계면활성제를 이용하여 오일회수증진용 알칼리-계면활성제-폴리머(alkali-surfactant-polymer, ASP)용액을 제조하였다. 계면활성제는 현재 애경에서 사용되고 판매되어지는 리니어알킬벤젠술폰산(linear alkylbenzene sulfonic acid, LAS)과 디옥틸설포석신나트륨(dioctyl sulfosiuccinate, DOSS)을 사용하였으며 LAS와 DOSS를 1:1, 2:1의 비율로 섞어 합성계면활성제를 제조하였다. 염도는 0.8 wt.%에서 3.6 wt.%까지 변화시킨 뒤 계면활성제 용액과 오일모사로 쓰인 데칸(decane)을 섞어서 마이크로에멀젼 형성을 알아보았다. 염도가 변하면서 마이크로에멀젼 층은 증류수에서 오일로 이동하였으며 최적의 염도일 때 가용화 값을 측정하였다. 또한 표면장력 측정기를 이용하여 표면장력을 측정하였으며 Huh 방정식을 이용하여 계면장력을 측정하였다. 이후에 각각의 계면활성제 비율에 대한 마이크로에멀젼의 특성을 비교하였다.

Keywords

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