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Combined radiolytic and catalytic oxidizing method to remove toluene in gas phase
Authors:Jo-Chun Kim  Youn-Suk Son  Ki-Joon Kim  Yong-Jae Lim  Sang-Gwi Chung  Young Sunwoo  Mohamad Al-Sheikhly
Institution:1. Department of Advanced Technology Fusion, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 143-701, Republic of Korea;2. Department of Environmental Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 143-701, Republic of Korea;3. Emission Sources Research Division, National Institute of Environmental Research, Incheon 404-708, Republic of Korea;4. Air Quality Research Division, Climate and Air Quality Research Department, National Institute of Environmental Research, Incheon 404-703, Republic of Korea;5. Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742-2115, USA;1. College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;2. Department of Chemistry, Shanxi Datong University, Datong 037009, China;3. State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China;4. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;1. Division of Materials Science, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea;2. Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea;3. Department of Energy Engineering, Dankook University, Cheonan 330-714, Republic of Korea;1. Obstetrics Service, Hospital Italiano de Buenos Aires, JD Peron 4190 (C1199ACI), Buenos Aires, Argentina.;2. Gynecology Service, Hospital Italiano de Buenos Aires, JD Peron 4190 (C1199ACI), Buenos Aires, Argentina.;3. Radiology Service, Hospital Italiano de Buenos Aires, JD Peron 4190 (C1199ACI), Buenos Aires, Argentina.;1. National Institute of Environmental Research, Environmental Research Complex, Gyeongseodong Seogu, Incheon 404-708, Republic of Korea;2. Institute of Environmental and Energy Technology, Pohang University of Science and Technology, Hyojadong, Namgu, Pohang 790-784, Republic of Korea;3. Korea LPG Association, Bangbaedong, Suchogu, Seoul 137-060, Republic of Korea;4. Institute for Technical Chemistry, Karlsruhe Institute of Technology, D-76344 Karlsruhe, Germany;1. Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA;2. Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD 20742, USA
Abstract:We enhanced the decomposition and the removal of toluene in gas phase using a combined method that consists of electron beam (EB) irradiation and catalytic oxidation. The catalytic oxidation system comprises oxidizing particles of 0.1 wt% Pt or 0.1 wt% Pd deposited to supporting materials, which were also used as adsorbents. These adsorbents—supporting materials are Cordierite, Y-zeolite, and γ-alumina. We demonstrated that 100% removal of toluene can be achieved using approximately 9 kGy of dose level in the presence of Pt or Pd deposited to 12 wt%. The G (-toluene) values were determined to be 0.498 and 0.829 μmol/J in the absence and presence of these catalysts with adsorbents, respectively. We have also demonstrated that the presence of the oxidation-catalyst prevents the toluene from undergoing radiolytic polymerization.
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