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바이오매스로부터 급속 열분해를 통한 바이오오일의 생산기술 연구동향
김재곤,박조용,임의순,하종한,Kim, Jae-Kon,Park, Jo Yong,Yim, Eui Soon,Ha, Jong Han 한국응용과학기술학회 2014 한국응용과학기술학회지 Vol.31 No.3
본 논문에서는 바이오매스로부터 급속열분해를 통해 난방용, 발전용 및 수송용 연료로 사용하기 위해 바이오오일을 생산하는 기술개발 현황을 나타내었다. 바이오매스를 작은 규모의 액체연료로 전환하기 위해 가장 효율적인 방법 중 하나는 급속열분해이다. 급속열분해를 통한 바이오오일은 $450^{\circ}C{\sim}600^{\circ}C$ 온도에서 바이오매스가 신속히 열분해 되어 증기 급냉를 위해 외부 산소가 없는 조건에서 생산된다. 이 바이오오일은 최초 건조 바이오매스 기준 최대 75 무게%까지 생산할 수 있지만, 일반적으로 60-75 무게% 수준이 적합하다. 본 연구에서는 바이오매스의 원료특성, 바이오오일 생산원리, 바이오오일의 특성 및 활용분야에 대한 최근의 개발현황을 살펴보았다. The paper provides a review on bio-oil production technology from biomass by using fast pyrolysis to use heating fuel, power fuel and transport fuel. One of the most promising methods for a small scale conversion of biomass into liquid fuels is fast pyrolysis. In fast pyrolysis, bio-oil is produced by rapidly heating biomass to intermediate temperature ($450{\sim}600^{\circ}C$) in the absence of any external oxygen followed by rapid quenching of the resulting vapor. Bio-oil can be produced in weight yield maximum 75 wt% of the original dry biomass and bio-oils typically contain 60-75% of the initial energy of the biomass. In this study, it is described focusing on the characterization of feedstock, production principle of bio-oil, bio-oil's property and it's application sector.
김재곤(Jae-Kon Kim),임의순(Eui Soon Yim),정충섭(Choong-Sub Jung) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The problem of biodiesel is to undergo the oxidative degradation over time, mainly influenced by temperature and oxygen. When it is used by fuel, oxidized products of biodiesel from degradation may cause some problems in engine and injection. The heating of vegetable oils can cause complementary decomposition reactions, in which the results can lead to the formation of ploymeric compounds. The oxidation stability of biodiesel also depends on the fatty acid compositions. Therefore, biodiesels (100 vol. %) were examined to recognize oxidation characteristics rapidly at 180 ℃ for 72 h under accelerated oxidation conditions. From the analysis of biodiesels and after accelerated oxidation, it was considered that density, kinematic viscosity, and acid number should proportionally increase because those showed increased values as oxidation time. Oxidation products after accelerated oxidation were identified by ¹H-NMR, FT-IR, GC, and FT-orbitrap APCI MS. In the degraded biodiesel after accelerated oxidation conditions, the formation of gum occurred, indicating that oxidative polymerization was completed..
김재곤 ( Jae Kon Kim ) 한국공업화학회 2013 공업화학전망 Vol.16 No.2
전 세계적으로 석유자원 고갈에 따른 탈석유 대응 에너지원 다양화와 기후변화 대응을 위한 온실가스 저감을 위한 저탄소 에너지 정책이 중시되고 있는 현실이다. 이러한 저탄소 에너지 정책 중 수송부문에서 바이오연료가 사용되어지고 있으며, 지속가능한 차세대 바이오연료의 개발이 한창 진행 중에 있다. 이러한 석유대체 가능한 바이오연료에는 바이오디젤, 바이오에탄올 등이 현재 전 세계적으로 상용화되어 사용 되 어 지고 있다. 본고에서는 이러한 지속가능한 바이오연료의 혼합의무 보급정책과 기술개발 동향 등을 살펴보고자 한다.
바이오매스 기반 합성가스를 이용한 BTL 휘발유분의 연료적 특성 연구
김재곤(Jae-Kon Kim),전철환(Cheol-Hwan Jeon),임의순(Eui Soon Yim),정충섭(Choong-sub Jung),이상봉(Sangbong Lee),이윤제(YunJe Lee),강명진(Myung-Jin Kang) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Biomas-To-Liqufied(BTL) can be used for conventional diesel engines, pure or blended with conventional diesel due to its similar physical properties to diesel. BTL fuel was first produced by Fischer-Trosch(F-T) process with syngas(H2/CO), Fe based catalyst in low temperature condition(240 ℃) in Korea. This study was focused on quality characteristics of BTL gasoline to use transport fuel in Korea. BTL gasoline showed high content of hydrocarbon between C? and C₁?, compared to automotive gasoline. It also was evaluated more high distillation range than automotive gasoline.
김재곤(Jae-Kon Kim),전철환(Cheol-Hwan Jeon),임의순(Eui Soon Yim),정충섭(Choong-sub Jung),이상봉(Sangbong Lee),이윤제(YunJe Lee),강명진(Myung-Jin Kang) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Biomas-To-Liqufied(BTL) can be used for conventional diesel engines, pure or blended with conventional diesel due to its similar physical properties to diesel. BTL fuel was first produced by Fischer-Trosch(F-T) process with syngas(H₂/CO), Fe based catalyst in low temperature condition(240 ℃) in Korea. BTL with diesel compositions after distillation process is consisted of C12 ~ C23+ mixture as a kerosine, diesel compositions of n-paraffin and iso-paraff in compounds. Especially, it showed higher content n-paraffin in products compared with iso-paraffin products. BTL with diesel compositions showed a very high cetane number(54.6), low aromatic content(4.1 w/w.%) and sulfur free level(1.7 ㎎/㎏). This study was focused on quality characteristics of BTL diesel blends to use transport fuel in Korea. The BTL diesel were blended the different volume ratios (BTL D5(5 vol.% BTL diesel - 95 vol.% diesel), BTL D10, BTL D20, BTL D30, BTL D40, BTL D50 and BTL D100. Seven BTL diesel blends were analyzed by following the Korean standards, a test specification for conventional diesel for automotive fuel compared to base diesel. The specification of six BTL blends was within the limit by the Korean standards except density item.