کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
679392 1459942 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalytic supercritical water gasification of primary paper sludge using a homogeneous and heterogeneous catalyst: Experimental vs thermodynamic equilibrium results
ترجمه فارسی عنوان
گازاژسی کاتالیستی فوق بحرانی گاز لجن کاغذ اولیه با استفاده از یک کاتالیزور همگن و ناهمگن: نتایج آزمایش تجربی نسبت به ترمودینامیک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
H2, CH4, CO and CO2 yields were measured during supercritical water gasification (SCWG) of primary paper waste sludge (PWS) at 450 °C. Comparing these yields with calculated thermodynamic equilibrium values offer an improved understanding of conditions required to produce near-equilibrium yields. Experiments were conducted at different catalyst loads (0-1 g/gPWS) and different reaction times (15-120 min) in a batch reactor, using either K2CO3 or Ni/Al2O3-SiO2 as catalyst. K2CO3 up to 1 g/gPWS increased the H2 yield significantly to 7.5 mol/kgPWS. However, these yields and composition were far from equilibrium values, with carbon efficiency (CE) and energy recovery (ER) of only 29% and 20%, respectively. Addition of 0.5-1 g/gPWS Ni/Al2O3-SiO2 resulted in high H2 and CH4 yields (6.8 and 14.8 mol/kgPWS), CE of 84-90%, ER of 83% and a gas composition relatively close to the equilibrium values (at hold times of 60-120 min).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 201, February 2016, Pages 111-120
نویسندگان
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