کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
684987 889031 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biodiesel surrogates: Achieving performance demands
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Biodiesel surrogates: Achieving performance demands
چکیده انگلیسی

Synthesis of surrogate molecules is particularly useful for generating in sight of structural-activity relationships, understanding processes and improving the performance. In order to improve upon the physico-chemical properties of biodiesel, methyl, ethyl, isopropyl and n-butyl esters of β-branched fatty acid have been synthesized, initiating from β-branched alcohols. β-Branched alcohols upon oxidation gave corresponding acids, which were converted to their esters. The synthesized esters have substantially better oxidative stability, exhibited by Rancimat oxidation induction period of more than 24 h. The cloud point of synthesized esters is <−36 °C, pour point is <−42 °C and CFPP is <−21 °C, which is substantially better than fatty acid methyl esters. Besides achieving the objective of better oxidative stability and improved low temperature properties, the synthesized surrogate esters have viscosity in the range of 4.2–4.6 cSt at 40 °C, meeting the international diesel and biodiesel standards. The cetane number of synthesized esters is 62–69, which is much better than diesel and biodiesel. The blends of the synthesized esters in diesel at 5% and 10% meet Indian standards of diesel.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 100, Issue 12, June 2009, Pages 3022–3028
نویسندگان
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