کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
230097 1427366 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermochemical liquefaction of algae for bio-oil production in supercritical acetone/ethanol/isopropanol
ترجمه فارسی عنوان
مایع سازی حرارتی جلبک برای تولید زیستی روغن در استون / اتانول / ایزوپروپانول فوق بحرانی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Algae were converted to liquid and gas products by supercritical fluid liquefaction process.
• 160, 122 and 108 different types of compounds were obtained in acetone, ethanol and isopropanol.

Thermochemical conversion processes such as supercritical fluid extraction are used for producing biofuels from biomass. Supercritical fluid extraction process is decomposition process of lignocellulose or other organic materials thermally under supercritical conditions at 250–400 °C temperature range under high pressure (4–5 MPa). In this study, the supercritical fluid extraction was used to produce bio-oils from algae. Supercritical fluid extraction trials were performed in a cylindrical reactor (75 mL) in organic solvents (acetone, ethanol and isopropanol) under supercritical conditions with (ferric chloride, potassium hydroxide) and without catalyst at the temperatures of 255, 275 and 295 °C. The effects of process variables including temperature and catalyst on product yields were investigated. The produced liquids at 295 °C in supercritical liquefaction were analyzed and characterized by elemental, GC–MS and FT-IR. 160, 122 and 108 different types of compounds were identified by GC–MS obtained in acetone, ethanol and isopropanol respectively. Bio-oils from supercritical liquefaction were composed of various organics including aromatics, nitrogenated and oxygenated compounds. Bio-oils obtained from supercritical liquefaction were found to have higher calorific values and superior fuel properties compared to feedstock.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 111, May 2016, Pages 179–198
نویسندگان
, ,