کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10385904 | 882687 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrafiltration of Kraft Black Liquor from Two Swedish Pulp Mills
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ultrafiltration of Kraft Black Liquor from Two Swedish Pulp Mills Ultrafiltration of Kraft Black Liquor from Two Swedish Pulp Mills](/preview/png/10385904.png)
چکیده انگلیسی
Extraction of lignin by ultrafiltration of black liquor from two Swedish pulp mills has been studied. One of the mills employs batch digestion and the other continuous digestion. At both mills softwood was used as raw material. The black liquor was withdrawn before the evaporator unit. A ceramic membrane with a cut-off of 15 000 g molâ1 was used in the experiments. The average flux during concentration to 90% volume reduction was 160 and 110 L mâ2 hâ1 for the liquors from the batch and the continuous digestion processes, respectively, when the temperature was 90°C and the transmembrane pressure 200 kPa. The retention of lignin was about the same for both liquors, 35%. A cost estimate of extraction of lignin fuel from black liquor was made, based on experimental data from ultrafiltration at various operating conditions. The cost was found to be about 20 ⬠per MWh of calorific value of the lignin fuel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Research and Design - Volume 83, Issue 8, August 2005, Pages 994-999
Journal: Chemical Engineering Research and Design - Volume 83, Issue 8, August 2005, Pages 994-999
نویسندگان
A. Holmqvist, O. Wallberg, A.-S. Jönsson,