کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6656276 1425368 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Purification of crude glycerol derived from biodiesel production process: Experimental studies and techno-economic analyses
ترجمه فارسی عنوان
خالص سازی گلیسرول خام حاصل از فرایند تولید بیودیزل: مطالعات تجربی و تجزیه و تحلیل های فنی و اقتصادی
کلمات کلیدی
تصفیه گلیسرول، درمان فیزیکی و شیمیایی، فیلتر کردن غشاء، تجزیه و تحلیل تکنولوژیکی و اقتصادی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
In the present work, crude glycerol was purified by a combined strategy of physicochemical treatment and semi-continuous membrane filtration using a 5 kDa ultrafiltration tubular membrane. Three parameters - temperature, pressure, and flow rate were studied to see the effect of membrane filtration on glycerol purity. A maximum glycerol purity of 93.7% was obtained from crude glycerol of 40% purity after the physicochemical treatment and membrane filtration at the temperature, pressure, and flow rate of 50 °C, 700 kPa, and 50 mL/min, respectively. Most of the purification occurred during physicochemical treatment. Techno-economic analysis based on a scenario where all the purified glycerol is converted to value added chemicals - solketal and glycerol carbonate - showed that the glycerol purification process is economically feasible. In this scenario (scenario 3), the required capital investment was $2.1 million and the net present value of the project were $6 million (with 10% discounting rate) or $3.65 million (with 15% discounting rate), respectively, over 10 years of operation after start-up with capital investment in the initial three-year period with no returns. The unit cost and revenue of crude glycerol purification was $50.85/kg and $80.36/kg, respectively, making it a promising undertaking. The results of the present work can also be useful for the purification or recovery of other valuable biodiesel by-products such as free fatty acids, soaps, and solvents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 178, September 2018, Pages 78-87
نویسندگان
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