• Title/Summary/Keyword: 올레핀

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Spectroscopic Analysis on Hydroquinone Clathrates for an Application to Storage/Recovery of Olefin Compounds (올레핀 저장/회수 기술 응용을 위한 하이드로퀴논 크러스레이트의 분광학적 분석 연구)

  • Lee, Jong-Won;Pratik, Dotel;Kang, Seong-Pil
    • Transactions of the Korean hydrogen and new energy society
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    • v.24 no.5
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    • pp.437-443
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    • 2013
  • Clathrate samples, using hydroquinone as a host and ethylene or propylene as a possible guest, were prepared and analyzed by means of spectroscopic measurements. Obtained results showed that ethylene can form clathrate compounds with hydroquinone at 4.0MPa and room temperature, while propylene cannot form clathrate compounds. Different formation behaviors of these two olefin compounds can be applied to a clathrate-based storage/recovery of ethylene in a selective way, and can provide useful information on the cavity size of the formed clathrate compounds.

The Effect of Olefin Contents on Exhaust Emissions from Gasoline Vehicles (휘발유 차량에서 배출가스에 미치는 올레핀의 영향)

  • Park, Cheonkyu;Jung, Choongsub;Na, Byungki
    • Transactions of the Korean Society of Automotive Engineers
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    • v.22 no.2
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    • pp.37-43
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    • 2014
  • Exhaust emissions were studied as a function of gasoline olefin composition in two vehicles-MPI and GDi engine equipped vehicles. Three different gasolines were tested which varied in olefin contents-12, 16 and 20 vol%. Exhaust emissions in two vehicles were affected by changes in gasoline olefin composition. Responses to changes in olefins were similar in both vehicles : reducing olefins lowered emissions of NOx and CO. Measured exhaust emissions included total hydrocarbons (THC), oxides of nitrogen (NOx), carbon monooxide(CO), carbon dioxide($CO_2$), formaldehyde, benzene, toluene, xylene, 1,3-butadiene and acetylene.