کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
206595 | 461195 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced catalysis of K2CO3 for steam gasification of coal char by using Ca(OH)2 in char preparation
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel approach has been proposed for mitigating the potassium deactivation in the K2CO3-catalyzed steam gasification of coal char by addition of Ca(OH)2 in the char preparation. It was experimentally found that the Ca(OH)2-added char had higher reactivity for the catalytic gasification than the raw char. Ca(OH)2 played a role in suppressing the interactions of K2CO3 with acidic minerals in coal during the gasification and also probably in forming more active oxygenated intermediate on the char surface. The distribution of gaseous products was examined during the catalytic gasification. An oxygen transfer and intermediate hybrid mechanism is applied for understanding of the rate and selectivity of the catalytic gasification.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 89, Issue 2, February 2010, Pages 310–317
Journal: Fuel - Volume 89, Issue 2, February 2010, Pages 310–317
نویسندگان
Jie Wang, Yihong Yao, Jianqin Cao, Mingquan Jiang,