Dr. Sheeba Jilani

ZHCET AMU ALIGARH, India

Title: SIMULATION OF DRY REFORMING REACTION FOR VARIOUS CATALYSTS

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Biography

She did her B.Sc. Engg. and M.Sc. Engg, from AMU Aligarh, and PhD from IIT Roorkee. With an experience of more than 32 years, she is actively engaged in teaching and research in the areas of modeling and simulation of chemical engineering systems, separation processes, waste to energy conversion, and environmental pollution abatement.

Abstract

Conversion of greenhouse gases into valuable products such as syngas results in the reduction of atmospheric emissions of CO₂ and CH₄. Methane reforming with CO₂ (dry reforming) is an effective and economically attractive way of utilizing the two greenhouse gases for the production of syngas. Methane dry reforming being an endothermic reaction is favoured by high temperature and low pressure. Due to presence of steam, which is by product of reverse water gas shift reaction (RWGS), coke formation and sintering of active catalysts result into deactivation of catalysts. This in turn can result into choking of reactor. In this paper simulation studies on five catalysts were carried out for the methane dry reforming with respect to the carbon deposition. Selected catalysts were: Ni/?Al₂O₃ with 5 wt % Ni, Ni/La/?Al₂O₃, Ni/La₂O₃, Ni/?Al₂O₃ with 10.6 wt % Ni, Rh/ ?Al₂O₃. Comprehensive steady state, one dimensional, isothermal mathematical model for dry reforming reaction carried out in fixed bed reactor was developed and it was concluded that Ni/La/?Al₂O₃ was the best catalyst in terms of the coke formation and CH₄/CO₂ ratio.

Keywords: Dry reforming; syngas; greenhouse gases; Ni catalysts; coke deposition