کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6636722 | 461137 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ash limitation of physical coal beneficiation for medium-high ash coal-A geochemistry perspective
ترجمه فارسی عنوان
محدودیت ذغال سنگ ذغال سنگ فیزیکی برای ذغال سنگ خاکستر متوسط - یک دیدگاه ژئوشیمیایی
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کلمات کلیدی
عملکرد خاکستر زغال سنگ، ذغال سنگ فیزیکی، تجزیه و تحلیل همبستگی، ژئوشیمی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Nowadays the industrial coal beneficiation in China could only reduce the ash yield to about 10%, which could not meet the requirement or standard of environment protection. In this work, the possibility of reducing the ash yield was studied from the aspect of geochemistry. The channel samples were collected from two coal seams in Guizhou and Shanxi province, China and then conducted analysis by combining data from coals worldwide. The result reveals that the same coal seam or the coals deposited in the same peat swamp show a significantly positive correlation between ash yield and Al2O3Â +Â SiO2 content, and the intercept of regression equation on the ash axis is always less than 5% (generally 2-5%). Overall, the coal from China is featured with a higher intercept compared with that in the other countries. The intercept of 2-5% on the ash axis indicates an original inorganic component in coal-forming peat. The research result also presents a theoretical limitation of coal ash by coal cleaning, because 2-5% of inorganic components in medium-high quality ash coal could hardly be separated by traditional physical coal beneficiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 135, 1 November 2014, Pages 83-90
Journal: Fuel - Volume 135, 1 November 2014, Pages 83-90
نویسندگان
Wenfeng Wang, Weiduo Hao, Simon Xu, Fuchang Qian, Shuxun Sang, Yong Qin,