کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
207412 461216 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Additive effect of cobalt-exchanged coal on the liquefaction of subbituminous coal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Additive effect of cobalt-exchanged coal on the liquefaction of subbituminous coal
چکیده انگلیسی

In comparison with the liquefaction (420 °C, with tetralin and elemental sulfur) of the proton-exchanged Adaro subbituminous coal with complex (metallocene or metal carbonyl) of cobalt, nickel or iron, the coal liquefaction was enhanced significantly on the liquefaction of cation (Co2+, Ni2+ or Fe2+) exchanged Adaro coal. However, for several kinds of subbituminous coal, metal cations hardly exchange due to the small content of carboxyl group in coal. Therefore, the simultaneous liquefaction of subbituminous coal and cobalt-exchanged coal were carried out in this study. Further, the simultaneous liquefaction of lower rank and subbituminous coals with Co2(CO)8 was carried out to compare the catalytic effect of cobalt derived from either the exchanged coal or Co2(CO)8. The catalytic effect of cobalt in the exchanged Morwell brown coal was appeared as the decrease of residue yield on the liquefaction with Yilan subbituminous coal. On the other hand, there was little enhancement on the simultaneous liquefaction of cobalt-exchanged Adaro and Yilan subbituminous coals. Accordingly, it is clarified that the hydroliquefaction of subbituminous coal, which was exchanged cation hardly, was enhanced by the addition of cobalt-exchanged brown coal.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 86, Issue 14, September 2007, Pages 2071–2075
نویسندگان
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