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RISS 인기검색어
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- 저자 : 임영관(Lim, Young-Kwan) (검색결과 78 건)
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임영관,김정민,김종렬,하종한,Lim, Young-Kwan,Kim, Jeong-Min,Kim, Jong-Ryeol,Ha, Jong-Han 한국지하수토양환경학회 2017 지하수토양환경 Vol.22 No.1
Over 30% of domestic soil contamination has occurred via petroleum products and complex oil. Moreover, contamination by complex oil is more intense than it is by a single petroleum product species. In this study, we analyzed sectional TPH (total petroleum hydrocarbon) pattern and sectional ratio of current domestically distributed petroleum products, such as kerosene, diesel, bunker C, and lubricant and complex oils, to determine pollution characteristics of the soil. In the TPH pattern, kerosene, which is a light distillate, had an early retention time, and lubricant oil, which is a heavy distillate, had a late retention time in the gas chromatogram. In addition, we obtained a complexly contaminated soil via diesel and lubricant oil from the Navy and inspected it for its ratio of complex oil species. The inspection results showed that this soil was contaminated with 85% diesel and 15% lubricant oil. The method developed in this study could be used to determine complex petroleum sources and ratios at sites with accidentally contaminated soil.
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임영관 ( Young-kwan Lim ),이은율 ( Eun-yul Lee ),성상래 ( Sang-rae Seong ),김종렬 ( Jong-ryeol Kim ) 한국공업화학회 2016 공업화학 Vol.27 No.6
무단 폐기물 투기로 인해 토양, 지하수, 하천 등 환경오염이 심각해지고 있다. 본 연구에서는 J시에서 발생된 무단투기 유류를 분석함으로써 어떤 유종인지를 분석하였다. 물, 고형불순물, 유류 혼합물 형태를 전처리하여 균질한 유류성분을 얻은 뒤, 물성분석, 원소분석, 및 가스크로마토그래피를 이용해 분석한 결과, 11.8%의 산소함량, -6 ℃의 유동점, 크로마토그램의 패턴 결과 식물성기름으로 판단하였다. 또한 어떤 식물성 기름인지 알기 위해 HPLC를 이용해 구성성분을 분석한 결과, LLO, OOL, POL이 높은 비율로 분석되어졌으며, 이는 대두유가 주성분이면서 다른 식물성기름의 혼합형태인 폐유로 최종 판단하였다. 본 연구를 통해 향후, 불법 투기되는 유류에 대한 유종 구분 및 오염원인자 판단을 위해 활용 가능할 것으로 판단된다. The contamination in soil, underground water and river environment became serious due to illegal waste dumping. In this study, our research group analyzed the oil species of illegally disposed oils from J City. After pretreating the mixture of oil, water and solid phases to obtain homogeneous phase components, the physical property analysis, atom analysis, and gas chromatography were performed. From the results showing 11.8% of oxygen content, -6 ℃ of pour point and chromatogram pattern. the contaminated oil was identified as a vegetable one. High performance liquid chromatography (HPLC) analysis was also performed in order to know what kind of vegetable oil was, and the ratio of LLO, OOL and POL was found to be high indicating that the disposed oil is majorly the used soybean oil with some vegetable oil mixtures. This study can be used for identifying contaminators for oils from the illegal waste dumping.
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국내 유통 중인 석유제품 내 석유계 총 탄화수소화합물(TPH) 분석
임영관 ( Young-kwan Lim ),김정민 ( Jeong-min Kim ),김종렬 ( Jong-ryeol Kim ),권민정 ( Min-jeong Kwon ),이경흠 ( Kyoung-heum Lee ),류승현 ( Seong-hyun Ryu ) 한국공업화학회 2016 공업화학 Vol.27 No.5
국내 토양오염의 60~70% 이상이 석유제품에 의한 오염이며, 석유제품에 의해 토양오염이 발생될 경우, 토양환경보전 법 상 B·T·E·X와 total petroleum hydrocarbon (TPH)를 분석하도록 명시하고 있다. 본 연구에서는 국내 유통 중인 석유제품에 대한 구간별 TPH 패턴을 분석하였다. 또한 C<sub>8</sub>~C<sub>40</sub> 구간만을 분석하는 현행 토양오염공정시험기준의 문제 점을 보완하여 석유제품 내 TPH를 정량분석 하였다. 분석결과, 토양오염공정시험기준 분석조건으로 분석한 결과값과 보완된 분석방법을 이용했을시, 휘발유와 용제 1호 같은 저비점 유류의 경우, 최대 85%의 차이가 발생하는 것을 확인 하였다. Over 60~70% of the domestic soil contamination have occurred by petroleum products. B·T·E·X including benzene, toluene, ethylbenzene, xylene and total petroleum hydrocarbon (TPH) have to be inspected for the contaminated soil by petroleum products. An accurate contamination analysis is necessary to estimate the are of contaminated soil and also establish an appropriate purification scheme. In this study, we analyzed a sectional TPH pattern for current domestic distributed petroleum products. Also, the TPH content was analyzed by compensating the defect of current Korea standard analytic methods for soil where the analytic range is just for C<sub>8</sub>~C<sub>40</sub>. The light distillate petroleum products such as gasoline and solvent 1 showed the maximum of 85% difference in the TPH content between the standard analytic and improved methods.
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임영관(Young-Kwan Lim),정충섭(Choong-Sub Jeong),한관욱(Kwan-Wook Han),도진우(Jin-Woo Do) 한국트라이볼로지학회 2014 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.30 No.1
Because food crops serve as the raw materials for biodiesel, the increasing use of biodiesel as an alternative fuel can lead to adverse effects such as food price inflation and may contribute to global starvation. To solve these problems, efforts are being made to explore various nonedible raw materials for producing biodiesel. Different raw materials impart different fuel characteristics to biodiesel. In this study, we synthesized pure fatty acid methyl ester (FAME), which is a biodiesel component, and then analyzed its fuel properties. The fuel properties of pure FAME would be useful in producing biodiesel from various new raw materials.
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임영관(Young-Kwan Lim),정충섭(Choong-Sub Jung),김종렬(Jong-Ryeol Kim),임의순(EuiSoon Yim) 한국트라이볼로지학회 2010 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.26 No.3
GTL(gas-to-liquid) fuel produced by the Fischer-Tropsch process using carbon monoxide(CO) and hydrogen(H₂) is expected to be one of the environmental friendly fuel for alternative and blended to petrodiesel. But GTL have poor lubricity due to paraffin as main component of GTL which is not involve polar materials. In this paper, we had investigated the lubricity improvement of GTL fuels with various lubricants using HFRR(high frequency reciprocating rig).
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임영관(Young-Kwan Lim),김동길(Dongkil Kim),임의순(EuiSoon Yim) 한국트라이볼로지학회 2009 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.25 No.2
Biodiesel produced from triglyceride which is main component of animal fats and vegetable oils by methanolysis was known for excellent lubricity. In this study, the lubricity of 12 kinds of biodiesel come from vegetable oils were analyzed using HFRR (High frequency reciprocating rig). The biodiesel synthesized from soybean oil has best lubricity by 153 ㎛ of wear scar in HFRR and used fried oil's biodiesel has slightly low lubricity by 299 ㎛. Also we have found that the lubricity of diesel was improved when mixing ratio of soybean biodiesel was increased in base diesel.
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임영관(Young-Kwan Lim),함송이(Song-Yi Ham),이정민(Joung-Min Lee),정충섭(Choong-Sub Jeong) 한국트라이볼로지학회 2012 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.28 No.2
The engine oil is an oil used for lubrication of various internal combustion engines. Recently, the vehicle and engine oil manufacture usually guarantee for oil change over 15000~20000 km mileage, but the most of driver usually change engine oil every 5000 km driving in Korea. In this case, it is possible to cause environmental contamination by used engine oil and increase the cost of driving by frequently oil change. In this study, we investigate the various physical properties such as flash point, pour point, kinematic viscosity, cold cranking simulator, total acid number, and four-ball test for fresh engine oil and used engine oil after vehicle driving (5000 km, 10000 km). The test result showed that the total acid number and wear scar by four-ball lest of used engine oil had increased than fresh engine oil, but 2 kind of used oil (5000 km and 10000 km) had similar physical properties.
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임영관 ( Young Kwan Lim ),박소라 ( So Ra Park ),김종렬 ( Jong Ryeol Kim ),임의순 ( Eui Soon Yim ),정충섭 ( Choong Sub Jung ) 한국공업화학회 2010 공업화학 Vol.21 No.6
동식물 유지의 주성분인 트리글리세라이드를 메탄올과 반응시켜 생산된 바이오디젤은 기존 석유디젤에 비해 윤활성이 뛰어난 것으로 알려져 있다. 본 연구에서는 대두유, 팜유, 들기름으로부터 합성된 식물성 바이오디젤과 우지, 돈지로부터 생산된 동물성 바이오디젤의 윤활성을 측정한 결과 대두유와 들기름으로부터 합성된 바이오디젤은 다른 바이오디젤보다 윤활성이 높게 측정되었다. 순수한 바이오디젤의 윤활성과 이들 바이오디젤의 구성분자 조성을 가스크로마토그래피-질량분석기를 이용해 분석한 결과, 올레핀 함량이 높고 분자길이가 긴 바이오디젤일수록 윤활성 향상효과가 뛰어난 것을 확인할 수 있었다. Biodiesel produced from the reaction of methanol and triglyceride which is the main component of animal fats and vegetable oils is known for remarkable lubricity. In this study, the lubricity of 3 kinds of biodiesel came from vegetable oils such as soybean oil, palm oil, and perilla oil and 2 kind of biodiesel which were produced from beef tallow and pork lard were analyzed using HFRR (High frequency reciprocating rig). In HFRR test result, the lubricity of perilla and soybean`s biodiesel was higher than other biodiesels. After analysis of biodiesel components by GC-MS and determination of the lubricity of pure biodiesel components using HFRR, it was found that a higher olefin content and long alkyl chaining biodiesel had an excellent lubricity property.
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