کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6476075 1424978 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Attempts to produce blast furnace coke from Victorian brown coal. 4. Low surface area char from alkali treated brown coal
ترجمه فارسی عنوان
تلاش برای تولید کک کوره انفجاری از زغال سنگ قهوه ای ویکتوریا. 4. چگالی سطح پایین از ذغال سنگ قهوه ای با قلیایی
کلمات کلیدی
کک انفجار کوره، زغال سنگ قهوه ای، درمان قلیایی، استحکام و واکنش پذیری کک، سطح و حجم منافذ و ساختار گرافیتی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- Alkali treated coal became plastic during carbonization.
- The treatment could give a low surface area product.
- Product reactivity was relatively low, but higher than for a blast furnace coke.
- Product reactivity decreased with increase in the amount of graphitic structure.
- The product had a small macropore volume and a smooth surface.

A Victorian brown coal (VBC) has been heated with strong aqueous KOH under severe conditions, neutralized with dilute H2SO4 and then hot-briquetted with or without coking coal tar pitch as a binder, optionally air cured and finally carbonized. The final products were evaluated as a blast furnace (BF) coke substitute. The least reactive final product had a much lower reactivity than the product obtained by carbonizing a hot-briquetted VBC-VBC tar mixture. Furthermore, the final product obtained from alkali treated coal had a surface area as low as that of a BF coke. However, the reactivity remained higher and the amount of graphitic structure lower than those of a BF coke. In addition, although the coal/coal-binder mixture, like coking coal, appeared to have fused during carbonization, the final products had virtually no meso + macropore volume, in contrast to a typical BF coke.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 186, 15 December 2016, Pages 320-327
نویسندگان
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