首页|NiO-Doped Fe2O3/MgO Properties for the Chemical Looping Oxidative Dehydrogenation of Ethane
NiO-Doped Fe2O3/MgO Properties for the Chemical Looping Oxidative Dehydrogenation of Ethane
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Ethane chemical looping oxidative dehydrogenation(CL-ODH)to ethylene is a new technology for ethylene preparation.Fe2O3/MgO oxygen carrier was prepared using the co-precipitation method.The influence of added NiO and its different loadings on Fe2O3/MgO were investigated.Then,a series of oxygen carriers were applied in the CL-ODH of the ethane cycle system.Brunauer-Emmett-Teller(BET),X-ray diffractometry(XRD),X-ray photoelection spectroscopy(XPS),and H2-temperature programmed reduction(TPR)were used to characterize the physicochemical properties of these oxygen carriers.It was confirmed that an interaction between NiO and Fe2O3 occurred based on the XPS and H2-TPR results.Based on the CL-ODH activity performance tests conducted in a fixed-bed reactor,it was revealed that ethylene selectivity was significantly improved after NiO addition.Fe2O3-10％NiO/MgO showed the best activity performance with 93％ethane conversion and 50％ethylene selectivity at a reaction temperature of 650 ℃,atmospheric pressure,and space velocity of 7500 mL/(g·h).
chemical looping oxidative dehydrogenationoxygen carrierFe2O3/MgONiO
Liang Hao、Chen Junjie、Sun Jie、Sun Hui
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Shenyang Ligong University,Shenyang 110159,China
Fushun Ecology Environment Bureau Qingyuan County Branch,Fushun 113399,China
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