کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10372717 | 877824 | 2011 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ash deposit characterisation in a large-scale municipal waste-to-energy incineration plant
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کلمات کلیدی
EDSWTEMSWWaste-to-energy - (تبدیل) زباله به انرژیEnergy dispersive X-ray spectrometer - اشعه ماوراء بنفش اشعه ماوراء بنفشBottom ash - خاکستر پایینMunicipal solid waste - زباله جامد شهریMunicipal solid waste incineration - سوزاندن زباله های شهریSEM - مدل معادلات ساختاری / میکروسکوپ الکترونی روبشیScanning electron microscopy - میکروسکوپ الکترونی روبشی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The deposition of ash - combustion residues - on superheaters and heat exchanger surfaces reduce their efficiency; this phenomenon was investigated for a large-scale waste-to-energy incineration facility. Over a period of six months, ash samples were collected from the plant, which included the bottom ash and deposits from the superheater, as well as flyash from the convective heat exchanger, the economiser and fabric filters. These were analysed for particle size, unburned carbon, elemental composition and surface morphology. Element partitioning was evident in the different combustion residues, as volatile metals, such as cadmium, antimony and arsenic, were found to be depleted in the bottom ash by the high combustion temperatures (1000+°C) and concentrated/enriched in the fabric filter ash (transferred by evaporation). Non-volatile elements by contrast were distributed equally in all locations (transported by particle entrainment). The heat exchanger deposits and fabric filter ash had elevated levels of alkali metals. 82% of flyash particles from the fabric filter were in the submicron range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 186, Issue 1, 15 February 2011, Pages 218-226
Journal: Journal of Hazardous Materials - Volume 186, Issue 1, 15 February 2011, Pages 218-226
نویسندگان
Awassada Phongphiphat, Changkook Ryu, Karen N. Finney, Vida N. Sharifi, Jim Swithenbank,