کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5480975 1522098 2017 37 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of different agricultural residues as raw materials for pulp and paper production using a semichemical process
ترجمه فارسی عنوان
ارزیابی بقایای مختلف کشاورزی به عنوان مواد خام برای تولید کاغذ و خمیر کاغذ با استفاده از فرایند شیمیایی نیمه شیمیایی
کلمات کلیدی
مقوا، باقی مانده کشاورزی، پالپ، کاغذ، فرآیند نیمه شیمیایی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This work assesses six different agricultural residues with the aim of finding alternative raw materials for a soda semichemical pulping process: stems of bell and chili pepper (Capsicum annuum), broad bean (Vicia faba), asparagus (Asparagus officinalis), pea (Pisum sativum), and okra (Abelmoschus esculentus). Pulping yields higher than 60% (m/m) were obtained, except for pea stems (43%). The drainability of all the pulps, expressed as the Schopper-Riegler index (ºSR), had values of over 70 ºSR. The Kajaani analyses of the fibers showed acceptable fiber lengths in all cases (0.64-0.92 mm), but on average shorter than the lengths of pulps from a commercial fluting paper (Old corrugated Container, OCC), that was found to be 1.27 mm. Handsheets of paper were produced both with the pulps under study and with mixtures of these pulps with OCC pulp. Several properties were measured to assess the use of the new fibers in a paper for cardboard production. The property showing the greatest differences was the Gurley porosity, ranging from 25 mL/min (asparagus) to 1300 mL/min (broad bean). Of the six residues tested, the okra residue fiber showed better properties than the commercial paper fiber (Concora Medium Test indexes: 1.5 N m2/g and 1.1 N m2/g respectively, Burst Indexes: 2.3 kPa m2/g and 1.7 kPa m2/g, respectively), yielding similar mechanical properties to those of high quality fibers obtained from miscanthus (Miscanthus giganteus). Broad bean residue could also be a promising raw material, though its properties are not as good as okra's.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 156, 10 July 2017, Pages 184-193
نویسندگان
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