期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 55, 期 -, 页码 119-127出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2017.06.035
关键词
Hg-0 removal; CrOx; MnOx; Adsorbent; SO2 resistance
资金
- National Natural Science Foundation of China [51306046, 51676064]
- Chinese Ministry of Education [113045A]
- Young Core Instructor Project in the Higher Education Institutions of Henan Province [2016GGJS-038]
- Outstanding Youth Science Foundation of Henan Polytechnic University
Chromium modified MnOx-TiO2 (CMT), MnOx-TiO2 (MT) and CrOx-TiO2 (CT) adsorbents were prepared by a sol-gel method and were investigated for Hg-0 removal in the absence and presence of SO2. The fresh and used adsorbents were characterized by N-2 physisorption, XRD, FTIR, H-2-TPR, XPS and TG. The results showed that the addition of Cr into MT can not only increase the activity of Hg-0 removal, but also improve its SO2 resistance performance. The amount of manganese sulfate formed onto spent CMT was much higher than that of chromium sulfate, meaning that sulfate species were formed preferentially on Mn rather than Cr. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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