کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5483768 1522532 2017 6 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Speciation and capture performance of mercury by a hybrid filter in a coal-fired power plant
ترجمه فارسی عنوان
تشخیص و ضبط عملکرد جیوه توسط یک فیلتر هیبریدی در یک نیروگاه با سوخت زغال سنگ
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موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی
Mercury speciation and removal were investigated for a newly developed hybrid filter (HF) originally designed to remove fine particulates and retrofitted to the exhaust cleaning system in a coal-fired power plant. The test plant used a blend of anthracite and semi-anthracite coals for combustion. At the boiler outlet, Hg0 was the dominant mercury species in the flue gas at 89% of total Hg. After passing through the electrostatic precipitator (ESP) and HF, Hg2 + became the dominant species owing to oxidation of Hg at the lower temperature and interaction with other air pollutants in the flue gas. The Hg2 + subsequently accumulated as Hgp by bonding with fly ash. Due to higher oxidation of Hg in the HF than in the ESP, more Hg2 + could be removed by the flue gas desulfurization (FGD) system through dissolution of Hg2 + when an HF was included. By installing hybrid filters alongside the existing devices, removal efficiencies of 86.7% and 99.3% for Hg and fine particulates, respectively, could be achieved, as opposed to 62.4% and 95.2% without the installation. Applying HFs in the existing air pollution control device (APCD) configuration was therefore recommended as the best simultaneous control technology for Hg and fine particulate matter (PM) at the test plant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Coal Geology - Volume 170, 1 February 2017, Pages 35-40
نویسندگان
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