کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8092872 1522051 2018 32 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of thermal desorption conditions for recovering wood preservative from used railroad ties through response surface methodology
ترجمه فارسی عنوان
بهینه سازی شرایط ترشح حرارتی برای بازیابی نگهدارنده چوب از راه های مورد استفاده در راه آهن از طریق روش سطح پاسخ
کلمات کلیدی
روغن زیتون، اسیدهای نفتنیک، پیرولیز، روش سطح پاسخ، روابط راه آهن استفاده شده،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
A statistical response surface methodology (RSM) using a central composite design (CCD) model was applied to identify the optimum thermal desorption conditions for maximum recovery of preservative from copper naphthenate (CuNap) treated wood and subsequent production of a high quality pyrolytic vapor from the thermally treated wood. From the designed experiment, 94% of the total preservative present in the ties was desorbed at temperatures higher than 250 °C and residence times longer than 30 min. Elevating the temperature from 215 °C to 285 °C for 45 min residence time generated a weight loss of 12-36 wt%, an increase in higher heating value (HHV) from 20.1 to 21.9 MJ/kg, and a reduction of energy yield from 90.4 to 71.5% of the resulting thermally treated biomass. Pyrolysis at 450 °C of this material produced a vapor rich in sugars- and lignin-derived compounds. The predicted optimum conditions in terms of a maximum preservative recovery, minimum energy yield loss of the wood, and production of thermally treated biomass that generates a high proportion of sugars- and lignin-derived compounds during pyrolysis were found to be 265 °C and 51 min. Under these optimum conditions, the predicted maximum preservative recovery was 95% while the predicted thermally treated solid retained 77% of the original energy yield and produced high portions of levoglucosan and lignin-derived compounds during subsequent pyrolysis, similar to torrefied wood.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 201, 10 November 2018, Pages 802-811
نویسندگان
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