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Bo Yang,Yuesong Shen,Yun Su,Peiwen Li,Yan-Wei Zeng,Shubao Shen,Shemin Zhu 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.50 No.-
A novel Mn-Ce-Nb-Ox/P84 catalyticfilter for synergetic removal of particulates and NO was designed andprepared by a new method using functional foaming coating. Removal characteristics of nitrogen oxides(including catalyst loading amount, O2 concentration, NH3/NO molar ratio, H2O and SO2) andparticulates, were systematically studied. Results showed that the NO removal efficiency of catalyticfilter reached 95.3% at 200 C, as the catalyst loading amount,filtration velocity and mole ratio of NH3/NOwere set to be 450 g/m2, 1 m/min and 1, respectively. The removal characteristic of particulates of Mn-Ce-Nb-Ox/P84 catalyticfilter belonged surfacefiltration and the PM2.5 removal efficiency reached 99.98%.
Zhiwei Xue,Shemin Zhu,Yuesong Shen,Shubao Shen,Chengliang Li 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.30 No.-
Promotional effects of Ce4+, La3+ and Nd3+ incorporations on FeCu2O3.5/ATS for decomposing N2O wereinvestigated. Results showed that all the ions especially La3+ can dramatically improve the catalyticperformance. FeCu2La1.5Ox/ATS, the optimal catalyst, can decompose 100% N2O at 550 8C. The formedperovskite-type LaFeO3 and spinel-type CuLa2O4 largely improved catalytic performance. The ionmodification increased N2O adsorption capacity, and La3+-doped catalyst enhanced desorption ability ofsurface oxygen. Both effects can accelerate the rate-determine steps of N2O decomposition reaction,promote catalytic performance. Moreover, the supported catalysts studied were economic efficiency forapplication.
She-Min Zhu,Da-Hai Zheng,Yuesong Shen,Yun-Shun Qiu,Bing Li,Yan-Wei Zeng,Shubao Shen,Shemin Zhu 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.24 No.-
Effects of catalyst loading amount, reaction temperature, O2 concentration, NH3/NO molar ratio and SO2 on low-temperature catalytic performance of the Mn–La–Ce–Ni–Ox (Mn/La/Ce/Ni = 2.5:2.5:1:1 in mol)/ PPS for NH3-SCR of NO were mainly studied. Results showed that the filter with catalyst loading amount of 250 g/m2 obtained more than 95% NO removal efficiency at 200 8C under filtration velocity of 1 m/min. The NO removal efficiency was still above 85% by injecting 300 ppm SO2 at 200 8C. Anyway, the Mn–La– Ce–Ni–Ox/PPS catalytic filter is promising to achieve the expectation of simultaneous removing particulate and NOx from low-sulfur flue gas in cement kiln.
The influence factors on CeSn0.8W0.6Ox/TiO2 for catalytic removals of NO, CO and C3H8
Guorong Sui,Zhiwei Xue,Dan Zhou,Yan Wang,Yuesong Shen,Yuhao Zong,Youlin Liu,Tai Qiu,Shemin Zhu 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.51 No.-
Series of CeSn0.8W0.6Ox/TiO2 catalysts were tested for selective catalytic reduction of NO and forsynergistic catalytic removals of CO and C3H8 from diesel engine exhaust. Results revealed that catalyst12%-CeSn0.8W0.6Ox/TiO2 calcined at 500 C exhibited the optimal catalytic performance for NH3-SCR ofNO. The catalyst obtained more than 90% NO conversion at a wide temperature range of 252–456 C. BothCO and C3H8 could be oxidized into CO2 by the optimized catalyst. Moreover, excellent redox property,rich surface acidity and big specific surface area were the promotional factors for good catalyticperformance in catalytic removals of NO, CO and C3H8.