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Catalytic Transformation of Oxygenated Organic Compounds into Pure Hydrogen
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作者 薛鹤 刘俊旭 +1 位作者 夏彤岩 李全新 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2016年第4期481-488,I0002,共9页
The continual growth in transportation fuels and more strict environmental legislations have led to immense interest in developing green biomass energy. In this work, a proposed catalytic transformation of oxygenated ... The continual growth in transportation fuels and more strict environmental legislations have led to immense interest in developing green biomass energy. In this work, a proposed catalytic transformation of oxygenated organic compounds (related to bio-oil) into pure hydrogen was desighed, involving the catalytic reforming of oxygenated organic compounds to hydrogen- rich mixture gas followed by the conversion of CO to CO2 via the water gas reaction and the removal of CO2. The optimization of the different reforming catalyst, the reaction conditions as well as various sources of oxygenated organic compounds were investigated in detail. The production of pure hydrogen, with the H2 content up to 99.96% and the conversion of 97.1%, was achieved by the integrated catalytic transformation. The reaction pathways were addressed based on the investigation of decomposition, catalytic reforming, and the water gas reaction. 展开更多
关键词 oxygenated organic compounds HYDROGEN Catalytic reforming Water gasreaction
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Wall losses of oxygenated volatile organic compounds from oxidation of toluene:Effects of chamber volume and relative humidity
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作者 Shanshan Yu Long Jia +3 位作者 Yongfu Xu Hailiang Zhang Qun Zhang Yuepeng Pan 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2022年第4期475-484,共10页
Vapor wall losses can affect the yields of secondary organic aerosol.The effects of surfaceto-volume(S/V)ratio and relative humidity(RH)on the vapor-wall interactions were investigated in this study.The oxygenated vol... Vapor wall losses can affect the yields of secondary organic aerosol.The effects of surfaceto-volume(S/V)ratio and relative humidity(RH)on the vapor-wall interactions were investigated in this study.The oxygenated volatile organic compounds(OVOCs)were generated from toluene-H_(2)O_(2)irradiations.The average gas to wall loss rate constant(k_(gw))of OVOCs in a 400 L reactor(S/V=7.5 m^(-1))is 2.47(2.41 under humid conditions)times higher than that in a 5000 L reactor(S/V=3.6 m-1)under dry conditions.In contrast,the average desorption rate constant(k_(wg))of OVOCs in 400 L reactor is only 1.37(1.20 under humid conditions)times higher than that in 5000 L reactor under dry conditions.It shows that increasing the S/V ratio can promote the wall losses of OVOCs.By contrast,the RH effect on k_(gw)is not prominent.The average k_(gw)value under humid conditions is almost the same as under dry conditions in the 400 L(5000 L)reactor.However,increasing RH can decrease the desorption rates.The average k_(wg)value under dry conditions is 1.45(1.27)times higher than that under humid conditions in the 400 L(5000 L)reactor.The high RH can increase the partitioning equilibrium timescales and enhance the wall losses of OVOCs. 展开更多
关键词 Vapor wall loss Surface-to-volume ratio Relative humidity TOLUENE Smog chamber oxygenated volatile organic compounds
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