کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
576332 | 1453077 | 2015 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A combination of solvent extraction and freeze thaw for oil recovery from petroleum refinery wastewater treatment pond sludge
ترجمه فارسی عنوان
ترکیبی از استخراج حلال و باز شدن یخچال برای بازیافت نفت از لجن استخر فاضلاب پالایشگاه نفت
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کلمات کلیدی
یخ زدگی بازیافت نفت، لجن روغن هیدروکربنهای نفتی، استخراج حلال،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
A combination of solvent extraction and freeze thaw was examined for recovering oil from the high-moisture petroleum refinery wastewater treatment pond sludge. Five solvents including cyclohexane (CHX), dichloromethane (DCM), methyl ethyl ketone (MEK), ethyl acetate (EA), and 2-propanol (2-Pro) were examined. It was found that these solvents except 2-Pro showed a promising oil recovery rate of about 40%, but the recycling of DCM solvent after oil extraction was quite low. Three solvents (CHX, MEK and EA) were then selected for examining the effect of freeze/thaw treatment on improving the quality of recovered oil. This treatment increased the total petroleum hydrocarbon (TPH) content in recovered oil from about 40% to 60% for both MEK and EA extractions, but little effect was observed for CHX extraction. Although the solid residue after oil recovery had a significantly decreased TPH content, a high concentration of heavy metals was observed, indicating that this residue may require proper management. In general, the combination of solvent extraction with freeze/thaw is effective for high-moisture oily hazardous waste treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 283, 11 February 2015, Pages 832-840
Journal: Journal of Hazardous Materials - Volume 283, 11 February 2015, Pages 832-840
نویسندگان
Guangji Hu, Jianbing Li, Haobo Hou,