کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
209276 461664 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kinetics of fast alkali reactive extraction/in situ transesterification of Chlorella vulgaris that identifies process conditions for a significant enhanced rate and water tolerance
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Kinetics of fast alkali reactive extraction/in situ transesterification of Chlorella vulgaris that identifies process conditions for a significant enhanced rate and water tolerance
چکیده انگلیسی


• Kinetics of “fast” alkali-catalysed in situ transesterification was studied.
• Obtained 96% biodiesel yield in 10 min
• The process was not adversely affected by moisture in the algae up to 20%.
• Determined side reactions not captured by previous in situ transesterification model
• Determined conditions not affected by 6% FFA content in the algal lipids

The kinetics of alkali-catalysed reactive extraction (“in situ transesterification”) of Chlorella vulgaris with methanol to produce biodiesel were investigated. Both the experiment and the model showed that a maximum 96% biodiesel yield can be obtained in 10 min before saponification FAME losses become significant. This high FAME yield was achieved despite high levels of free fatty acid (6% lipid) in C. vulgaris. The process shows higher level of water tolerance than a two-step transesterification. At 600:1 methanol to oil molar ratio, the process was not adversely affected by up to 20% moisture in the microalgae. A derived numerical model fitted with experimental data from this study showed that other side reactions including FAME and triglyceride saponification; free fatty acid neutralisation occur alongside the desired biodiesel synthesis in a NaOH-catalysed reactive extraction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 144, April 2016, Pages 212–219
نویسندگان
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