Clean Technology (청정기술)

The Korean Society of Clean Technology (한국청정기술학회)
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Pyrolysis Characteristics of Oil Shale

Oil shale의 열분해 특성 연구

  • Roh, Seon Ah (Environment System Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Yun, Jin Han (Environment System Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Keel, Sang In (Environment System Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Lee, Jung Kyu (Environment System Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Kim, Han Seok (Environment System Research Division, Korea Institute of Machinery and Materials (KIMM))
  • 노선아 (한국기계연구원 환경시스템연구본부) ;
  • 윤진한 (한국기계연구원 환경시스템연구본부) ;
  • 길상인 (한국기계연구원 환경시스템연구본부) ;
  • 이정규 (한국기계연구원 환경시스템연구본부) ;
  • 김한석 (한국기계연구원 환경시스템연구본부)
  • Received : 2018.10.23
  • Accepted : 2018.12.05
  • Published : 2018.12.31
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Abstract

Oil shale is the sedimentary rock containing kerogen, which is one of the abundant unconventional fuel. In the pyrolysis process, oil, gas and coke are produced from the decomposition of oil shale. In this study, TGA and the continuous pyrolysis of oil shale have been investigated for the clean conversion of oil shale. Effects of reaction temperature and residence time on the pyrolysis conversion and oil production rate have been determined. Conversion of oil shale increases with increasing the reaction temperature and residence time. Optimum conditions for oil production were reaction temperature of $450{\sim}500^{\circ}C$ at the residence time of 30 min.

Oil shale은 kerogen을 함유한 퇴적암으로 대표적인 비재래 에너지자원으로 알려져 있다. 열분해 공정을 통하여 oil shale이 분해되면 oil, gas 및 coke를 생성하게 된다. 본 연구에서는 oil shale의 청정 전환기술을 개발하기 위하여 oil shale의 TGA 및 연속 열분해 연구를 수행하였다. Oil shale의 열분해 전환율에 대한 반응 온도 및 체류시간의 영향을 살펴보고 oil의 생성율을 살펴보았다. Oil shale의 열분해 전환율은 온도와 체류시간에 따라 증가하였으며 $450{\sim}500^{\circ}C$, 체류시간 30 min의 조건에서 최대 oil 생산 수율을 나타내었다.

Keywords

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Figure 1. Green river oil shale. (Enefit American oil Corp., Utah, USA).

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Figure 2. Oil shale sorted by the size.

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Figure 3. Rotary tube furnace.

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Figure 4. Typical TG and DTG curves of oil shale (N2 atmosphere, 300 mL min-1).

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Figure 5. Effect of temperature on pyrolysis conversion.

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Figure 6. Effect of the residence time on pyrolysis conversion.

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Figure 8. Effect of the residence time on oil and gas production rate.

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Figure 7. Oil product rate in oil shale pyrolysis product.

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Figure 9. Effect of oil shale ash addition.

Table 1. Analysis of oil shale

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Table 2. Analysis of produced gas from oil shale

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