کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4453987 1620820 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mercury adsorption characteristics of HBr-modified fly ash in an entrained-flow reactor
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
پیش نمایش صفحه اول مقاله
Mercury adsorption characteristics of HBr-modified fly ash in an entrained-flow reactor
چکیده انگلیسی

In this study, the mercury adsorption characteristics of HBr-modified fly ash in an entrained-flow reactor were investigated through thermal decomposition methods. The results show that the mercury adsorption performance of the HBr-modified fly ash was enhanced significantly. The mercury species adsorbed by unmodified fly ash were HgCl2, HgS and HgO. The mercury adsorbed by HBr-modified fly ash, in the entrained-flow reactor, existed in two forms, HgBr2 and HgO, and the HBr was the dominant factor promoting oxidation of elemental mercury in the entrained-flow reactor. In the current study, the concentration of HgBr2 and HgO in ash from the fine ash vessel was 4.6 times greater than for ash from the coarse ash vessel. The fine ash had better mercury adsorption performance than coarse ash, which is most likely due to the higher specific surface area and longer residence time.

Mercury species adsorbed in the entrained-flow reactor of the HBr modified fly ashFigure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 33, 1 July 2015, Pages 156–162
نویسندگان
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