کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
209187 461659 2016 6 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
In-situ catalytic upgrading of coal pyrolysis tar on carbon-based catalyst in a fixed-bed reactor
ترجمه فارسی عنوان
ارتقاء کاتالیزوری به صورت داخل کوره زغال سنگ پترولیوم بر روی کاتالیزور بر پایه کربن در یک رآکتور بستر ثابت
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI
فقط 3 هزار تومان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت
کلمات کلیدی
زغال سنگ pyrolysis؛ ارتقاء؛ قطران زغال سنگ؛ کاراکتر؛ کربن فعال
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Coal pyrolysis tar was in-site upgraded over char and activated carbon catalysts.
• Content and yield of light tar was greatly increased by activated carbon catalyst.
• Activated carbon catalyst exhibits better upgrading tar than coal char.
• Carbon catalysts with high surface area are preferable for upgrading coal tar.

Coal pyrolysis tar was in-site upgraded in a fixed-bed reactor over char and activated carbon (AC) catalysts, and the effects of catalysts and temperature on tar upgrading were examined. The content of light tar with boiling point below 360 °C was improved over the catalysts despite the decrease of total tar yield. Compared with char catalyst, AC exhibited better upgrading performances, and the content of light tar increased with the temperature. The light tar yield over AC catalyst increased by 18% compared with that without catalysts at 650 °C. The variation in coal tar fractions suggested that upgrading is mainly from the conversion of the heavy components (pitch) in tar into light tar and gases. The role of carbon-based catalyst in upgrading process was also explored through the characterization by TG-DTG, FT-IR, N2 adsorption and Raman spectroscopy. Compared with thermal cracking, adsorption on the catalysts and the minerals in char, high specific surface areas and relative more defects in the carbon catalysts seem to be the primary factor for upgrading tar.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 147, 15 June 2016, Pages 41–46
نویسندگان
, , , , , ,
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI
فقط 3 هزار تومان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت