화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터)
권호 25권 2호, p.1404
발표분야 분리기술 (Separation Technology)
제목 Comparison of adsorption mechanism of N2O on silica, activated carbon, and carbon molecular sieve
초록 Nitrous oxide (N2O) is one of the representative non-CO2 greenhouse gases and the 100-year time horizon global warming potentials of N2O was as defined by the IPCC fifth assessment report. A large amount of N2O is emitted from the adipic acid process. It should be removed from the effluent gases for the mitigation of global climate change. In industrial fields, nitrous oxide generally decomposes in the thermal reduction unit to nitrogen and oxygen. It is a huge benefit from environmental and industrial views to develop a process of N2O recovery.
In this study, adsorption isotherms of N2O are measured by a volumetric method to evaluate the appropriate adsorbents for equilibrium separation and kinetic separation on silica type and carbon type adsorbents.  The adsorbents are evaluated considering the difference in adsorption rate because of the different dominant diffusion mechanisms. The theoretical adsorption uptake curves fitted from the experimental uptake curves are derived from the non-isothermal model and the isothermal dual resistance model.
저자 박두용, 이창하
소속 연세대
키워드 Non-CO2 분리; 가스분리; 흡착
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