کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6656323 1425369 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Behavior of trace elements and mineral transformations in the super-high organic sulfur Ganhe coal during gasification
ترجمه فارسی عنوان
رفتار عناصر کمیاب و تبدیل مواد معدنی در زغال سنگ فوق العاده بالا گوگرد زغال سنگ در طول گازسیون
کلمات کلیدی
زغال سنگ گوگردی آلی فوق العاده بالا، گازسیون، عناصر کمیاب خطرناک، نوسان، تبدیل پیره،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
A coal containing high concentrations of hazardous trace elements F, V, Cr, Se, Mo, Cd, and U was selected for the gasification experiment based on the Lurgi fixed-bed pressurized gasifier. The feed coal was a super-high organic sulfur coal sampled from the Ganhe Mine, Yanshan Coalfield, Yunnan Province, China. Fluorine, Ga, Se, Cd, In, Tl, Pb, and Bi were volatilized during gasification, whereas V, Mo, and U were significantly enriched in the residue. The erosion of the gasifier internals resulted in the abnormal enrichment of Cr and Ni in the residue, with the maximum concentrations of Cr and Ni of 26,073 μg/g and 23,982 μg/g, respectively. Except for quartz, other minerals in the feed coals were transformed. The newly formed phases such as mullite, hercynite, magnetite, Fe aluminosilicate, and Al-Si-O-glass containing Fe-Ca-Mg-V-K-Ti were identified in the gasification residue. Pyrite was transformed to elemental iron in some cases. Pyrrhotite with a magnetite rim, representing the high temperature transformation product of pyrite, was observed in the gasification residue by scanning electron microscopy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 177, August 2018, Pages 140-151
نویسندگان
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