کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
679232 | 1459935 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Life cycle assessment of advanced bioethanol production from pulp and paper sludge
ترجمه فارسی عنوان
ارزیابی چرخه زندگی تولید بیودینول پیشرفته از لجن کاغذ و کاغذ
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کلمات کلیدی
ارزیابی چرخه حیات، بیوتکنول، ارزش گذاری زباله، لجن کاغذ و کاغذ،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This work evaluates the environmental performance of using pulp and paper sludge as feedstock for the production of second generation ethanol. An ethanol plant for converting 5400Â tons of dry sludge/year was modelled and evaluated using a cradle-to-gate life cycle assessment approach. The sludge is a burden for pulp and paper mills that is mainly disposed in landfilling. The studied system allows for the valorisation of the waste, which due to its high polysaccharide content is a valuable feedstock for bioethanol production. Eleven impact categories were analysed and the results showed that enzymatic hydrolysis and neutralisation of the CaCO3 are the environmental hotspots of the system contributing up to 85% to the overall impacts. Two optimisation scenarios were evaluated: (1) using a reduced HCl amount in the neutralisation stage and (2) co-fermentation of xylose and glucose, for maximal ethanol yield. Both scenarios displayed significant environmental impact improvements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 208, May 2016, Pages 100-109
Journal: Bioresource Technology - Volume 208, May 2016, Pages 100-109
نویسندگان
Diogo Sebastião, Margarida S. Gonçalves, Susana Marques, César Fonseca, Francisco GÃrio, Ana C. Oliveira, Cristina T. Matos,