کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6656469 1425374 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study on combustion characteristics of pulverized coal preheated in a circulating fluidized bed
ترجمه فارسی عنوان
مطالعه تجربی بر روی ویژگی های احتراق ذغال سنگ پالستیک پیش گرم شده در بستر سیال در گردش است
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
A new technique to preheat pulverized coal in a circulating fluidized bed was adopted. This technique consists of two stages: the pulverized coal is first self-preheated in a circulating fluidized bed, and then the preheated fuel gas and char particles are burned out in a down-fired combustor under air-staging conditions. Experiments were conducted with two types of coals, two air ratios in the circulating fluidized bed and different air distributions in the combustor. The preheating and combustion processes ran stably under all experimental conditions. For both types of coals, the preheating temperatures in the circulating fluidized bed could be adjusted broadly within 800-950 °C, and the ratios of primary air could be lowered to 0.15. The combustion efficiency and nitrogen conversion were remarkably influenced by the air distribution, and were controlled above 98% and below 10% respectively, although the two targets could not be simultaneously achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 172, April 2018, Pages 72-78
نویسندگان
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