Recycling CO2 as a sustainable source of energy for power plants

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Mohammad Ali Takassi

Petroleum University of Technology, Iran

: Expert Opin Environ Biol

Abstract

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Environment friendly energy and alternative energy are major area of research for sustainable energy development. CO2 can convert into synthesis gas which it may be used as fuel in power plants. CO2 reforming of methane and CO2 hydrogenation reactions are shown in Equations: CH4+CO2 → 2CO+2H2 (1); and CO2+H2 ↔ CO+H2O (2). Most power plants are operated by fossil fuel; they produce millions of tons CO2 annually. Combustion of fossil fuel is shown in as: Fuel+nO2 → mCO2+pH2O+energy (3). In present study iron-molybdenum/zirconia and cobalt-molybdenum/γ-alumina catalysts were prepared. The activity of Fe-Mo/ZrO2 nano catalyst was studied for CO2 reforming of methane in a fixed bed reactor. The effect of reaction temperatures on CH4 conversion was investigated with CH4:CO2 ratio of 1:1 and total feed rate 30000 mL.h-1(g cat)-1. The stability experiment for Fe-Mo/ZrO2 catalyst was conducted at 873 ºK for 30 hours. 82% conversion of methane was recorded at 1073 ºK. The activity of Co-Mo/γ-Al2O3 catalyst was studied for hydrogenation of carbon dioxide. Kinetic property of this catalyst was studied in a batch reactor at a temperature of 823 ºK and at a pressure of 12 bar, with CO2: H2 in 1:3 ratio. The stability experiments were carried out in a fixed bed reactor. Using this catalyst, CO2 was converted into CO (63%) and CH4 less than 1% in twenty minutes of reaction time. These two reactions of CO2 could recycle CO2 as fuel for power plants.

Biography

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Mohammad Ali Takassi has obtained his PhD in Physical Chemistry from the University of Mississippi, Oxford, Mississippi. He has worked as a Post-doctoral Research Associate for a year at Sothern Methodist University, Dallas, Texas. He is currently a Professor of Chemistry and Chair of the Department of Science, Petroleum University of Technology, Iran. His research interests include: CO2 conversion to fuel and other useful chemicals; and synthesis and evaluation of surfactants and especially environmentally friendly surfactants for petroleum industry.

Email: takassi@put.ac.ir