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촉매열분해를 이용한 백합나무 바이오오일의 연료 특성 KCI 등재

Fuel characteristics of Yellow Poplar bio-oil by catalytic pyrolysis

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  • URLhttps://db.koreascholar.com/Article/Detail/334661
구독 기관 인증 시 무료 이용이 가능합니다. 4,200원
한국응용과학기술학회지 (The Korean Society of Applied Science and Technology)
한국응용과학기술학회(구 한국유화학회) (The Korean Society of Applied Science and Technology (KSAST))
초록

바이오오일은 고품질 화학물질로 이용이 가능하며 차세대 탄화수소 연료와 석유정제업 공급 원료로 사용할 수 있기 때문에 촉망받는 신재생에너지의 하나로 상당한 관심을 받고 있다. 또한 제올라이트는 급속열분해 과정에서 크래킹 반응을 효과적으로 촉진시켜 탈산소 반응을 증가 시키고 탄화수소가 많은 안정된 바이오오일을 만든다. 그래서 본 연구에서는 백합나무 바이오오일 품질개선을 위해 촉매열분해(Control, Blackcoal, Whitecoal, ZeoliteY 및 ZSM-5)를 적용하여 특성을 조사하였다. 바이오오일의 특성 변화를 알아보기 위하여 0.3~1.4 mm 크기의 백합나무 시료 500 g을 465℃에서 1.6초 동안 촉매열분해하여 바이오오일을 제조하였다. 촉매 조건 상태에서 바이오오일의 수율은 Control(54.0%)과 비교하여 Blackcoal(56.2%)를 제외하면, Whitecoal(53.5%), ZeoliteY (51.4%), 및 ZSM-5(52.0%)로 모두 감소했다. 수분 함량이 Control(37.4%)에서 촉매 처리후 37.4~45.2%로 증가함에 따라 발열량((High heating value)은 감소했다. 그러나 다른 다른 바이오오일 특성은 개선되었다. 촉매 적용 결과 바이오오일의 회분과 전산가(TAN)가 감소했고, 특히 수송연료로 중요한 특성인 점도는 Control cP(6,933) 에서 2,578 ~ 4,627 cP로 감소했다. 또한 ZeoliteY는 방향족탄화수소를 생산하고 점도를 개선시키는데 가장 효과적이였다.

Bio-oil has attracted considerable interest as one of the promising renewable energy resources because it can be used as a feedstock in conventional petroleum refineries for the production of high value chemicals or next-generation hydrocarbon fuels. Zeolites have been shown to effectively promote cracking reactions during pyrolysis resulting in highly deoxygenated and hydrocarbon-rich compounds and stable pyrolysis oil products. In this study, catalytic pyrolysis was applied to upgrade bio-oil from yellow poplar and then fuel characteristics of upgraded bio-oil was investigated. Yellow Poplar(500 g) which ground 0.3∼1.4 mm was processed into bio-oil by catalytic pyrolysis for 1.64 seconds at 465℃ with Control, Blaccoal, Whitecoal, ZeoliteY and ZSM-5. Under the catalyst conditions, bio-oil productions decreased from 54.0%(Control) to 51.4 ~ 53.5%, except 56.2%(Blackcoal). HHV(High heating value) of upgraded bio-oil was more lower than crude bio-oil while the water content increased from 37.4% to 37.4 ~ 45.2%. But the other properties were improved significantly. Under the upgrading conditions, ash and TAN(Total Acid Number) is decrease and particularly important as transportation fuel, the viscosity of bio-oil decreased from 6,933 cP(Control) to 2,578 ~ 4,627 cP. In addition, ZeoliteY was most effective on producing aromatic hydrocarbons and decreasing of from the catalytic pyrolysis.

저자
  • 채광석(국립산림과학원 화학미생물과) | Kwang-Seok Chea (Department of wood chemistry & microbiology, National Institute of Forest Science, Seoul, Korea)
  • 정한섭(국립산림과학원 화학미생물과) | Han-Seob Jeong (Department of wood chemistry & microbiology, National Institute of Forest Science, Seoul, Korea)
  • 안병준(국립산림과학원 화학미생물과) | Byoung-Jun Ahn (Department of wood chemistry & microbiology, National Institute of Forest Science, Seoul, Korea)
  • 이재정(국립산림과학원 화학미생물과) | Jae-Jung Lee (Department of wood chemistry & microbiology, National Institute of Forest Science, Seoul, Korea)
  • 주영민(국립산림과학원 화학미생물과) | Young-Min Ju (Department of wood chemistry & microbiology, National Institute of Forest Science, Seoul, Korea)
  • 이수민(국립산림과학원 화학미생물과) | Soo-Min Lee (Department of wood chemistry & microbiology, National Institute of Forest Science, Seoul, Korea) Corresponding author