• Title/Summary/Keyword: 이종연료유

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A Study of physicochemical changes for refined fuel using activated carbon (활성탄을 활용한 정제연료유의 물리화학적 변화 연구)

  • Kim, Shin;Kang, Hyungkyu;Lim, Taeyoon;Lee, Jongeun;Kim, Jihyun;Choi, Daesung;Jung, Choongsub
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.11a
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    • pp.159.1-159.1
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    • 2010
  • 활성탄은 입자내 공극이 잘 발달된 무정형 탄소로써 흡착성 및 촉매성이 뛰어나 폐유를 연료로 전환하는 과정에 회분, 중금속 및 기타 이물질 제거에 우수한 효과를 나타내며 이러한 연구가 간헐적으로 진행되고 있다. 본 연구에서는 활성탄을 활용하여 이온정제유, 감압정제유, 재생연료유를 대상으로 흡착성 실험을 진행하였으며 물리적 및 화학적 성분 변화를 통해 활성탄이 정제연료유에 미치는 영향 및 분자체 작용에 대한 연구를 진행하였다.

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Effect of Ultrasonic Irradiation on On-board Fuel Analyzed Using Gas Chromatography/Mass Spectrometry (GC/MS를 이용한 선박연료유에 대한 초음파조사 효과 분석)

  • Choi, Jung-Sik
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.27 no.6
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    • pp.890-897
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    • 2021
  • Since the enforcement of strict regulations on marine fuel oil sulfur content, demand for Low Sulfur Fuel Oil (LSFO) has been increasing. However, as LSFO properties vary greatly depending on the supply timing, region, and supplier, LSFOs can experience problems with sludge formation, blending compatibility, and stability once mixed into storage tanks. This study investigates using ultrasound cavitation effects to improve the quality of LSFOs in storage tanks. For marine gas oil (MGO), the results showed that the relative ratio of high molecular weight compounds to those of low molecular weight decreased after ultrasonic irradiation, due to cavitation-induced cracking of chemical bonds. For marine diesel oil (MDO) and blended oil, a small increase in the relative abundance of low weight molecular compounds was observed after treatment. However, no correlation between time and relative abundance was observed.

A study on the testing method for storage stability of emulsions used recycling waste oil (유화정제연료유의 안정성 시험방법에 관한 연구)

  • Kang, Hyungkyu;Kim, Shin;Lee, Jongeun;Lim, Taeyoon;Choi, Daesung;Jung, Choongsub
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.11a
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    • pp.158.2-158.2
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    • 2010
  • 본 논문은 정부의 연구 지원에 의해 폐유를 유화 방법으로 재활용한 유화정제연료유의 저장안정성 측정방법을 마련하고자 실시하였다. 국내외 유화정제연료유 저장안정성 시험방법이 마련되지 않아 ASTM D 3707, 지식경제부 '석유대체연료의 성능평가기준과 품질시험방법 등에 관한 고시' 별표4 유화연료유 저장안정성 평가방법(습식법) 등 유화연료유의 저장안정성 시험방법을 근간으로 하여 $40^{\circ}C$에서 30일 동안 저장용기에 저장하면서 매 10일 마다 상 하층 수분함량을 측정하는 방법을 제시하였고, 이에 대한 전반적인 연구 내용을 언급하였다.

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Measurements on Transient Mixing Concentrations of Two Fuel Oils using a Quantitative Flow Visualization Technique (정량적 유동가시화 기술을 이용한 이종연료유 과도 혼합 농도분포 측정)

  • Yum, Joo-Ho;Doh, Deog-Hee;Cho, Gyeong-Rae;Min, Seong-Ki;Kim, Myung-Ho;Ryu, Gyong-Won
    • Transactions of the Korean hydrogen and new energy society
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    • v.23 no.4
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    • pp.364-372
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    • 2012
  • Transient mixing states of two different fuel oils, dimethylformamide (DMF) oil and JetA1 oil, were investigated by using a color image processing and a neural network. A tank ($D{\times}H$, $310{\times}370mm$) was filled with JetA1 oil. The DMF oil was filled at a top tank, and was mixed with the JetA1 oil in the tank mixing tank via a sudden opening which was performed by nitrogen gas with 1.9 bar. An impeller was rotated with 700 rpm for mixing enhancements of the two fuel oils. To visualize the mixing state of the DMF oil with the JetA1 oil, the DMF oil was coated with Rhodamine B whose color was red. A LCD monitor was used for uniform illumination. The color changes of the DMF oil were captured by a camcoder and the images were transferred to a host computer for quantifying the information of color changes. The color images of two mixed oils were captured with the camcoder. The R, G, B color information of the captured images was used to quantify the concentration of the DMF oil. To quantify the concentration of the DMF oil in the JetA1 oil, a calibration of color-to-concentration was carried out before the main experiment was done. Transient mixing states of DMF oil with the JetA1 oil since after the sudden infiltration were quantified and characterized with the constructed visualization technique.

A Study for Fuel Characteristic by the Recycling of Waste Oil (폐유를 재활용한 연료특성 연구)

  • Lee, Jong Eun;Kang, Hyung Kyu;Lee, Jung Min;Jung, Choong Sub
    • 한국신재생에너지학회:학술대회논문집
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    • 2011.11a
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    • pp.139.2-139.2
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    • 2011
  • 산업혁명 이후 계속된 산업화로 이산화탄소, 메탄, 이산화질소와 같은 온실가스의 대기 중 농도가 지속적으로 증가하고 있다. 세계 각국은 화석연료 고갈 및 기후변화에 대처하기 위해 대체연료에 대한 연구가 활성화되고 있는데 특히, 폐유 재생과 폐기물의 발생 및 처리 문제를 극복하기 위해 많은 노력을 기울이고 있다. 본 시험은 폐유를 정제한 정제연료유와 유화정제연료유의 물성을 석유제품인 중유와 비교 분석하였다. 유화정제연료유는 폐유 중 중금속, 회분 및 슬러지 등을 제거한 후 유화제 등을 넣어 생산된 제품으로 연구를 수행하였다. 본 논문은 이에 대한 전반적인 내용을 언급하였다.

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