کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
208346 461248 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
How can we improve the energy balance of ethanol production from wheat?
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
How can we improve the energy balance of ethanol production from wheat?
چکیده انگلیسی

The gross energy in ethanol using wheat as a feedstock in Ireland is 66 GJ/ha/a. The net energy production is 25 GJ/ha/a. A model is proposed, whereby the ethanol production process is combined with combustion of straw, and digestion of stillage, resulting in two transport fuels; ethanol and biomethane. In the proposed system stillage is not dried, reducing the thermal demand by 35%. A quarter of the straw associated with the wheat grain is sufficient, when combusted, to satisfy the reduced thermal demands. Stillage is digested wet; the biogas is scrubbed, compressed and utilised as a transport fuel. The net energy now is 72 GJ/ha/a. The production cost of biomethane is two thirds that of ethanol.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 87, Issues 10–11, August 2008, Pages 1799–1806
نویسندگان
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