کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8108741 | 1522245 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pore structure development in Xilingol lignite under microwave irradiation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pore structure development in Xilingol lignite under microwave irradiation Pore structure development in Xilingol lignite under microwave irradiation](/preview/png/8108741.png)
چکیده انگلیسی
The pore structure of Xilingol lignite irradiated by microwave was investigated to determine drying time, microwave power level, and mineral composition. Pore structure was also determined using N2 adsorption/desorption as well as scanning electric microscopy. The results show that as microwave power increases from 400Â W to 800Â W, and irradiation time increases from 4 to 16Â min, the specific surface area of lignite samples increases, average pore diameter and total pore volume decreases, and the percentage of mesopores increases. The pore volumes, average pore diameters, and special surface area in the center of the lignite sample were greater than those in the outer layers, while the percentage of mesopores decreased slightly. The cluster structure of the lignite samples is simpler and the surface neater, while flat and fibrous structures remain the same. Evolution mechanisms for pore structures during microwave drying were similar, and include structural collapse caused by shrinkage forces resulting from the removal of moisture, the opening and crosslinking of blind and closed pores, and the thermal decomposition of organic macromolecular structures under high temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Energy Institute - Volume 91, Issue 1, February 2018, Pages 75-86
Journal: Journal of the Energy Institute - Volume 91, Issue 1, February 2018, Pages 75-86
نویسندگان
Weidong Wang, Fanwen Xin, Yanan Tu, Zanguo Wang,