کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6473702 1424964 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient renewable fuel production from sewage sludge using a supercritical fluid route
ترجمه فارسی عنوان
تولید سوخت قابل بازیافت از لجن فاضلاب با استفاده از یک مسیر مایع فوق بحرانی
کلمات کلیدی
لجن فاضلاب، تبدیل به مایع، روغن زیتون، مایع فوق بحرانی، لجن خام،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- Non-catalytic, non H2 sewage sludge liquefaction was held in supercritical fluids.
- High bio-oil yields of 87.8 wt% and HHV of 34.6 MJ kg−1 were achieved.
- The presence of water increases the conversion up to 96% and HHV up to 37.3 MJ kg−1.
- Ester and nitrogenated compounds were the major compounds in the bio-oil.

Conversion of sewage sludge into fuel was investigated using a catalyst- and external hydrogen-free supercritical fluid route. When dried sewage sludge was treated in supercritical ethanol, an extremely high bio-oil yield of 87.8 wt% and a remarkable higher heating value (HHV) of 34.6 MJ kg−1 were obtained. The possibility of using non-dried sewage sludge as a fuel source was tested using various alcohol-water mixtures; the presence of water resulted in an almost complete (96%) conversion and high HHVs of 36.8 and 37.3 MJ kg−1 for methanol-water (3:7, v/v) and ethanol-water (3:7, v/v) mixtures, respectively. The main chemical compounds in the bio-oils were found to be esters and nitrogenated species. Plausible reaction mechanisms for sewage sludge conversion in each supercritical fluid are discussed.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 200, 15 July 2017, Pages 146-152
نویسندگان
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