کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5147153 | 1497383 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The steam gasification of coal with molten blast furnace slag as heat carrier and catalyst: Kinetic study
ترجمه فارسی عنوان
گازسوز سازی بخار زغال سنگ با سرباره کوره انفجاری مایع به عنوان گرما و کاتالیزور: مطالعه جنبشی
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کلمات کلیدی
زغال سنگ، گازی کردن بخار، سرباره کوره ذوب ریخته گری، مدل جنبشی، تبدیل کربن،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
In this study, we carried out a kinetic investigation to analyze the steam gasification of FS (Fu Shun) coal. The effect of reaction temperature (1573 K-1673 K) was studied, and the coal/slag ratios were in the range of 1:0-1:2. The reaction temperature and coal/slag ratio affected the carbon conversion and reactivity index of FS coal gasification. With reaction temperature increasing, the time for carbon conversion completing decreased. But the effect of temperature was non-significant, when it was above 1623 K. The reactivity index of coal at 1673 K was about 1.6 times faster than that at 1573 K, when the coal/slag ratio was 1:0. The BFS (blast furnace slag) acted as not only a heat carrier but also an effective catalyst in steam gasification. Compared with the steam gasification of “pure” FS coal, both carbon conversion and reactivity index of gasification were enhanced by BFS. Meanwhile, the Diffusion model (D1 model) and Shrinking core model (R2 model) were proved as the most appropriate model to describe the steam gasification without and with BFS as heat carrier, respectively. The kinetic parameters applicable to the established model with different coal/slag ratios were obtained. Under these conditions, the valid range of activation energy for gasification reaction was 20 kJ·molâ1-64 kJ·molâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 42, 9 November 2016, Pages 18995-19004
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 42, 9 November 2016, Pages 18995-19004
نویسندگان
Wenjun Duan, Qingbo Yu, Tianwei Wu, Fan Yang, Qin Qin,