کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
300223 512473 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of ionic liquid mixtures on lipid extraction from Chlorella vulgaris
ترجمه فارسی عنوان
اثرات مخلوط مایع یونی بر استخراج لیپید از کلرلا ولگاریس
کلمات کلیدی
استخراج لیپید، کلرلا ولگاریس، روغن میکروالگال، مخلوط مایع یونی، کاتیون 1-اتیل-3-متیلیمیدازولیوم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی


• Effects of ionic liquid mixtures on lipid extraction from Chlorella vulgaris were investigated.
• Lipid extraction yield using single ionic liquids was compared with those by organic solvents and ionic liquid mixtures.
• Lipid extraction yield was improved by the synergistic effects of ionic liquid mixtures with different anions.

In this study, pre-biodiesel-production lipid extraction from microalgae (Chlorella vulgaris) was performed. The yield-enhancing effects of ionic liquid blends on the lipid extraction were investigated. The initial fatty acids content of the C. vulgaris was 292.2 mg/g cell. The lipid extraction yield using single ionic liquids was compared with the yield obtained with organic solvents and ionic liquid mixtures, respectively. The yield by hexane–methanol solvent was 185.4 mg/g cell. Among the 12 ionic liquids, 1-ethyl-3-methyl imidazolium acetate, 1-ethyl-3-methyl imidazolium diethylphosphate, 1-ethyl-3-methyl imidazolium tetrafluoroborate, and 1-ethyl-3-methyl imidazolium chloride showed high (>200.0 mg/g cell) lipid extraction yields. Although the yields of 1-ethyl-3-methyl imidazolium ethyl sulfate and 1-ethyl-3-methyl imidazolium thiocyanate were only 60.5 and 42.7 mg/g cell, respectively, the yield for their mixture (weight ratio of 1:1) was improved to 158.2 mg/g cell. Similarly, whereas the lipid extraction yield of 1-ethyl-3-methyl imidazolium hydrogen sulfate was just 35.2 mg/g cell, that for its mixture with 1-ethyl-3-methyl imidazolium thiocyanate (weight ratio of 1:1) was boosted to 200.6 mg/g cell. Overall, the synergistic effects of the ionic liquid mixtures with different anions improved the lipid extraction yield of C. vulgaris.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 65, May 2014, Pages 169–174
نویسندگان
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