کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10274920 | 461777 | 2005 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of NOx, α-Fe2O3, γ-Fe2O3, and HCl on mercury transformations in a 7-kW coal combustion system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of NOx, α-Fe2O3, γ-Fe2O3, and HCl on mercury transformations in a 7-kW coal combustion system Effects of NOx, α-Fe2O3, γ-Fe2O3, and HCl on mercury transformations in a 7-kW coal combustion system](/preview/png/10274920.png)
چکیده انگلیسی
An abundance of Hg2+, HCl, and γ-Fe2O3 in Blacksville flue gas and the inertness of injected α-Fe2O3 with respect to heterogeneous Hg0 oxidation in Absaloka and Falkirk flue gases suggested that γ-Fe2O3 catalyzes Hg2+ formation and that HCl is an important Hg0 reactant. The filtration of Absaloka and Falkirk combustion flue gases at 150 °C through fabric filters with â60 g/m2 γ-Fe2O3 indicated that about 30% of the Hg0 in Absaloka and Falkirk flue gases was converted to Hg2+ and/or Hg(p). HCl injection (100 ppmv) into the Absaloka combustion flue gas converted most of the Hg0 to Hg2+, whereas HCl injection into the Falkirk flue gas converted most of the Hg0 and Hg2+ to Hg(p). Additions of γ-Fe2O3 and HCl did not have a synergistic effect on Hg0 oxidation. The filtration of Absaloka and Falkirk flue gases through much greater fabric filter loadings of 475 g/m2 γ-Fe2O3 essentially doubled the baghouse Hg[tot] removal efficiency to about 50%. Results from this investigation demonstrate the importance of evaluating potential Hg0 reactants and oxidation catalysts in actual coal combustion flue gases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 86, Issue 4, 25 January 2005, Pages 429-448
Journal: Fuel Processing Technology - Volume 86, Issue 4, 25 January 2005, Pages 429-448
نویسندگان
Kevin C. Galbreath, Christopher J. Zygarlicke, James E. Tibbetts, Richard L. Schulz, Grant E. Dunham,