کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6683088 501853 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combined steam and carbon dioxide reforming of methane and side reactions: Thermodynamic equilibrium analysis and experimental application
ترجمه فارسی عنوان
تجزیه و تحلیل بخار و دی اکسید کربن متان و واکنش های جانبی: تجزیه و تحلیل تعادلی ترمودینامیکی و کاربرد تجربی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
Thermodynamic equilibrium analysis of the combined steam and carbon dioxide reforming of methane (CSCRM) and side reactions was performed using total Gibbs free energy minimization. The effects of (CO2 + H2O)/CH4 ratio (0.9-2.9), CO2:H2O ratio (3:1-1:3), and temperature (500-1000 °C) on the equilibrium conversions, yields, coke yield, and H2/CO ratio were investigated. A (CO2 + H2O)/CH4 ratio greater than 1.2, a CO2:H2O ratio of 1:2.1, and a temperature of at least 850 °C are preferable reaction conditions for the synthesis gas preparation in the gas to liquid process. Simulated conditions were applied to the CSCRM reaction and the experimental data were compared with the thermodynamic equilibrium results. The thermodynamic equilibrium results were mostly consistent with the experimental data, but the reverse water gas shift reaction rapidly occurred in the real chemical reaction and under excess oxidizing agent conditions. In addition, a long-term stability test (under simulated conditions) showed that the equilibrium conversion was maintained for 500 h and that the coke formation on the used catalyst was not observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 173, 1 July 2016, Pages 80-91
نویسندگان
, , , , , , ,