کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
207761 461225 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of utilization of corn stalks for energy and carbon material production by using rapid pyrolysis at high temperature
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Evaluation of utilization of corn stalks for energy and carbon material production by using rapid pyrolysis at high temperature
چکیده انگلیسی

Pyrolysis of agricultural residues (corn stalks) took place batch wise in a laboratory captive sample reactor (wire mesh) at atmospheric pressure. The process was studied by varying the temperature (470–710 °C) with an average heating rate of 60 °C s−1 and a reaction time of 0.2 s. The carrier gas used for both pyrolysis and GC analysis was He. The nature and quantity of gases produced and the main characteristics of the charcoals formed have been determined. From the GC analysis, CO showed the higher yield, followed by H2, CH4 and CO2. The increase in temperature is especially important to increase the production of gas, mainly hydrogen. From gas composition and proximate analysis, the heating value of gas and solid phases has been determined. A kinetic model of pyrolysis based on first order kinetics and on total devolatilization has been developed. According to this model, kinetic constants, pre-exponential factors and activation energies have also been determined for low and high temperatures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 87, Issue 6, May 2008, Pages 834–843
نویسندگان
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