Clean Technology (청정기술)

The Korean Society of Clean Technology (한국청정기술학회)
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Effect of the Recycling of Non-condensable Gases on the Process of Fast Pyrolysis for Palm Wastes

미응축가스 재순환에 따른 팜 부산물 급속열분해 반응 공정 특성

  • Received : 2018.03.09
  • Accepted : 2018.03.19
  • Published : 2018.09.28
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Abstract

Bio-oil is produced by the fast quenching of hot vapor produced by fast pyrolysis of biomass in an inert atmosphere. Nitrogen is used as carrier gas to control the concentration of oxygen less than 3%. The consumption of nitrogen should be increased with increasing process size, and leading to increasing of facility and operating costs due to nitrogen charge. The effects of the recycling of non-condensable gases on the fast pyrolysis, bio-oil yield and quality, and nitrogen consumption have systematically investigated to see the possibility of these results in fast pyrolysis process of palm residue.

급속열분해를 통한 바이오-오일 생산 공정은 무산소 조건에서 바이오매스를 급속열분해하여 얻어진 열분해가스를 급속 냉각 시켜 열분해오일을 생산한다. 이에 공정 내부의 산소 농도를 0 ~ 3% 이하로 유지하기 위해 캐리어 가스로 질소를 사용한다. 그러나 공정의 규모가 커질수록 질소의 사용량이 증가하고, 이는 공정 운전비용 증감 및 지속적인 질소 가스 충전을 위한 설비비 증감 할 수밖에 없다. 이에 본 연구에서는 팜 부산물 열분해에서 질소 사용량 감소를 위해 미응축가스 재순환 공정을 적용하여, 가스재순환율에 따른 질소 사용량과 미응축가스의 가연성 성분의 농도 변화를 측정하고 이에 따른 바이오-오일의 품질 수율 변화를 측정하여 가스재순환 공정의 활용 가능성을 연구하였다.

Keywords

References

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