کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
677298 1459846 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Emergy analysis of oil production from microalgae
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Emergy analysis of oil production from microalgae
چکیده انگلیسی

The use of microalgae and cyanobacteria for the production of biofuels and other raw materials is considered a very promising sustainable technology due to the high areal productivity, potential for CO2 fixation and use of non-arable land. The production of oil by microalgae in a large scale plant was studied using emergy analysis. The joint transformity calculated for the base scenario was 1.32E + 5 sej/J, the oil transformity was 3.51E + 5 sej/J, the emergy yield ratio (EYR) was 1.09 and environmental loading ratio was 11.10 and the emergy sustainability index (ESI) was 0.10, highlighting some of the key challenges for the technology such as high energy consumption during harvesting, raw material consumption and high capital and operation costs. Alternatives scenarios and the sensitivity to process improvements were also assessed, helping prioritize further research based on sustainability impact.


► Emergy analysis of production of biofuels and other raw materials by microalgae.
► Evaluation of a large scale plant.
►  Transformity of 1.32E + 5 sej/J for base scenario, with 0.10 ESI.
► Key challenges are energy and raw material consumption, capital and operation costs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomass and Bioenergy - Volume 47, December 2012, Pages 418–425
نویسندگان
, ,