caa a22 4500 606200320 CHVBK 20210128100943.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s10653-014-9663-y doi (NATIONALLICENCE)springer-10.1007/s10653-014-9663-y A novel method of microwave heating mixed liquid-assisted regeneration of V2O5-WO3/TiO2 commercial SCR catalysts [Elektronische Daten] [Kunzan Qiu, Jin Song, Hao Song, Xiang Gao, Zhongyang Luo, Kefa Cen] An experimental study on the regeneration of deactivated SCR catalysts was carried out using a microwave-assisted method containing three steps of washing with mixed liquid of ethanol and water, impregnating, and drying. After the regeneration treatment, NO conversion at 320°C increased from 39 to 90% and vanadium content increased by 62.2%, which were much higher than those regenerated by the traditional method. The more impregnated vanadium was due to the fact that the rapid evaporation of mixed liquid inside the catalyst channels led to the enlargement of surface areas by creating more pores on the catalysts. Meanwhile, with the increasing concentrations of ethanol, the heating rate of the mixed liquid increased, and the volume after complete evaporation of the mixed liquid was gradually reduced. Since higher heating rate and lager volume after the liquid evaporation could help to create more pores, therefore, when the volume ratio of ethanol/mixed solution was 20%, the catalyst obtained the maximum specific surface area, which significantly increased to ca. 123% compared with the deactivated catalyst. In addition, the catalyst dried by microwave exhibited better catalytic activity than that dried in conventional oven. Therefore, this method showed great potential in industrial applications. Springer Science+Business Media Dordrecht, 2015 Regeneration nationallicence SCR nationallicence Microwave nationallicence Catalyst nationallicence Ethanol nationallicence V2O5-WO3/TiO2 nationallicence Qiu Kunzan State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut Song Jin State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut Song Hao State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut Gao Xiang State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut Luo Zhongyang State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut Cen Kefa State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut Environmental Geochemistry and Health Springer Netherlands 37/5(2015-10-01), 905-914 0269-4042 37:5<905 2015 37 10653 https://doi.org/10.1007/s10653-014-9663-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10653-014-9663-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Qiu Kunzan State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut NATIONALLICENCE 700 1- Song Jin State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut NATIONALLICENCE 700 1- Song Hao State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut NATIONALLICENCE 700 1- Gao Xiang State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut NATIONALLICENCE 700 1- Luo Zhongyang State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut NATIONALLICENCE 700 1- Cen Kefa State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People's Republic of China aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Springer Netherlands 37/5(2015-10-01), 905-914 0269-4042 37:5<905 2015 37 10653