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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۱، شماره ۷، صفحات ۲۲۷۰-۲۲۷۷
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عنوان انگلیسی Regeneration Study on Active Components Supplement of Waste V2O5-WO3/TiO2 SCR Catalyst
چکیده انگلیسی مقاله The waste Selective Catalytic Reduction (SCR) catalysts were regenerated by active components supplement on the basis of alkali/acid washing treatment. Through orthogonal design, the regenerated SCR catalyst restored the denitration activity of 98.36% at optimal regeneration parameters of 6% WO3 loaded after 1.2% V2O5 loaded and then calcined at 500 oC. The catalysts were characterized by XRD and H2-TPR techniques. The XRD patterns and the FT-IR spectrogram showed that the supplemented V2O5 and WO3 were dispersed uniformly in an amorphous state on the surface of TiO2 support which remained as the anatase phase. The H2-TPR characterization reported that V2O5 significantly affected the low-temperature activity while WO3 mainly affected the high-temperature activity, the loading sequence of V2O5 before WO3 not only enhanced the interaction between V2O5 and TiO2 but also facilitated the enrichment of WO3 on TiO2 surface.
کلیدواژه‌های انگلیسی مقاله SCR catalyst,Deactivation,regeneration,the orthogonal design
نویسندگان مقاله Hairui Yin |
School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, P.R. CHINA

Zhenmin Liu |
School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, P.R. CHINA

Yuanyang Wang |
School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, P.R. CHINA

نشانی اینترنتی https://ijcce.ac.ir/article_246768_d2139a8b0e41683842714383fc0f5623.pdf
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