کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7074943 | 1459956 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Environmental sustainability of bioethanol produced from sweet sorghum stem on saline-alkali land
ترجمه فارسی عنوان
پایداری زیست محیطی بیوتکنول تولید شده از ساقه شیرین در زمین شور
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Life cycle assessment was conducted to evaluate the energy efficiency and environmental impacts of a bioethanol production system that uses sweet sorghum stem on saline-alkali land as feedstock. The system comprises a plant cultivation unit, a feedstock transport unit, and a bioethanol conversion unit, with 1000Â L of bioethanol as a functional unit. The net energy ratio is 3.84, and the net energy gain is 17.21Â MJ/L. Agrochemical production consumes 76.58% of the life cycle fossil energy. The category with the most significant impact on the environment is eutrophication, followed by acidification, fresh water aquatic ecotoxicity, human toxicity, and global warming. Allocation method, waste recycling approach, and soil salinity significantly influence the results. Using vinasse to produce pellet fuel for steam generation significantly improves energy efficiency and decreases negative environmental impacts. Promoting reasonable management practices to alleviate saline stress and increasing agrochemical utilization efficiency can further improve environmental sustainability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 187, July 2015, Pages 113-119
Journal: Bioresource Technology - Volume 187, July 2015, Pages 113-119
نویسندگان
Mingxin Wang, Xinxing Pan, Xunfeng Xia, Beidou Xi, Lijun Wang,