کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6656314 1425369 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Re-additization of commercial biodiesel blends during long-term storage
ترجمه فارسی عنوان
دوباره افزودن ترکیبات بیودیزل تجاری در طول ذخیره سازی طولانی مدت
کلمات کلیدی
سوخت قابل بازیافت، بیودیزل، پایداری اکسیداسیون، پایداری ذخیره سازی، آنتی اکسیدان،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Commercial biodiesel blends were aged at 43 °C while monitoring stability. The oxidation stability-or oxidation reserve expressed as Rancimat induction period (IP)-gradually decreased from its initial value. At a predetermined IP threshold, an antioxidant was used to restore IP to the ASTM D7467 specification minimum of 6 h, referred to as re-additization. At lower IP values, the amount of antioxidant required increased significantly, and the effectiveness tended to be reduced. Once IP fell to essentially zero, the acid content increased to above the allowable limit and insoluble material was also detected. Storage life was increased relative to the as-received fuels as evidenced by longer time to produce acids. Experience in the field may vary based on storage conditions; however, these results indicate re-additization can significantly increase storage life of biodiesel blends when used with regular monitoring of IP and acid number. An assessment of the storage stability of the as-received fuels showed that the initial IP did not predict storage behavior, although fuels above the specification minimum remained stable for >12 weeks accelerated aging (1 year simulated).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 177, August 2018, Pages 56-65
نویسندگان
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