کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
149843 456439 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance of Fe/AC catalyst prepared from demineralized pine bark particles in a microwave reactor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Performance of Fe/AC catalyst prepared from demineralized pine bark particles in a microwave reactor
چکیده انگلیسی

Activated carbon supported iron catalysts derived from pine bark were prepared by different methods using a microwave reactor. The catalyst samples were characterized by physical adsorption of N2, Fourier Transform Infrared (FTIR) spectroscopy, and Transmission Electron Microscopy (TEM). The catalyst activity was evaluated for catalytic wet peroxide oxidation of phenol at 50 °C. The results showed that the catalyst prepared by preloading the metal precursor to deashed biomass before carbonization and activation in a microwave reactor possessed much higher reactivity than catalyst prepared from other methods. The acid washing to remove ash from biomass eliminated the adverse effect of metals contained in the ash on catalyst, modified the biomass tissue which favored the catalyst dispersion on the biomass. The metal pre-loading to biomass led to a more uniform dispersion of catalyst on activated carbon. The microwave treatment saved energy, shortened preparation time. High catalytic activity for the catalytic wet peroxide oxidation of phenol was observed for catalyst samples prepared from pre-loading the active metal to pre-deashed bark samples.


► Ash was removed from bark samples by dilute acid washing.
► Iron precursors were preloaded to de-ashed biomass.
► Carbonization and activation were carried out in a microwave reactor.
► High reactivity for phenol wet oxidation was achieved for prepared catalysts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volumes 193–194, 15 June 2012, Pages 187–195
نویسندگان
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