کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6475170 1424967 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of an alternative cell disruption approach for improving hydrothermal liquefaction of microalgae
ترجمه فارسی عنوان
بررسی یک روش اختلال جایگزین سلولی برای بهبود روانکاری هیدروترمال مایکروویو
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- An alternative cell disruption approach of microalgae was developed.
- The approach uses low-temperature NaOH/urea solvent.
- Hydrothermal liquefaction of crude and pre-treated microalgae was carried out.
- A maximum bio-crude oil yield (26 wt.%) was obtained using the pre-treated microalgae.
- The bio-crude oil from the pre-treated microalgae has a better flow property.

High-energy and cost-intensive cell disruption processes represent one of the major techno-economic bottlenecks in the microalgae-based bio-refineries. Therefore, a feasible disruption method is required to ensure low energy input and operating cost, as well as high target-product (e.g., lipid) recovery. In this study, several different pre-treatment strategies for the disruption of Chlorella vulgaris were investigated, including NaOH/urea, sulfuric acid and ultra-sonication. Experimental results showed that the pre-treatment by NaOH/urea solution resulted in an average mass loss of 33.7 wt.%, and resulted in the removal of 77.2% of carbohydrates and 46.3% of protein (as N) from the original biomass. While these results were comparable to those obtained from the other cell disruption methods, the NaOH/urea method is believed to be more advantageous in terms of energy-efficiency and cost. Afterwards, all pre-treated microalgae samples were subjected to the liquefaction process towards bio-crude oil production. The bio-crude oils obtained from NaOH/urea solvent pre-treated microalgae resulted in higher yields and demonstrated better flow properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 197, 1 June 2017, Pages 138-144
نویسندگان
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