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Investigation of Inert Gas Injection in Steam Reforming of Methane: Energy

Authors: GHOLAMREZA ZAHEDI, Amjad Riaz, Ali Farsi, Zainuddin Abdul Manan


Synthesis gas manufacturing by steam reforming of hydrocarbons is an important industrial process. High endothermic nature of the process makes it one of the most cost and heat intensive processes. In the present work, composite effect of different inert gases on synthesis gas yield, feed gas conversion and temperature distribution along the reactor length has been studied using a heterogeneous model. Mathematical model was developed as a first stage and validated against the existing process models. With the addition of inert gases, a higher yield of synthesis gas is observed. Simultaneously the rector outlet temperature drops to as low as 810 K. It was found that Xenon gives the highest yield and conversion while Helium gives the lowest temperature. Using Xenon inert gas 20 percent reduction in outlet temperature was observed compared to traditional case.

Keywords: Modeling, methane, Steam reforming, Energy Savings, Inert gas

Digital Object Identifier (DOI):

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[1] A. M. Adris, S.S.E.H.E., R. Hughes, A Fluidized Bed Membrane Reactor for the Steam Reforming of Methane. The Canadian Journal of Chemical Engineering, 1991 69: p. 1061-1070.
[2] S.S. Bharadwaj, L.D.S., Catalytic partial oxidation of natural gas to syngas.Fuel Process. Technol., 1995. 42: p. 109-127.
[3] Song, X.P. and Z.C. Guo, Technologies for direct production of flexible H-2/CO synthesis gas.Energy Conyers. Manage., 2006. 47(5): p. 560¬569.
[4]York, A.P.E., T.C. Xiao, M.L.H. Green, and J.B. Claridge, Methane oxyforming for synthesis gas production. Catalysis Reviews-Science and Engineering, 2007. 49(4): p. 511-560.
[5] Aasberg-Petersen, K., J.H.B. Hansen, T.S. Christensen, I. Dybkjaer, P.S. Christensen, C.S. Nielsen, et al., Technologies for large-scale gas conversion.Applied Catalysis A: General, 2001. 221(1-2): p. 379-387.
[6] Hu, Y.H. and E. Ruckenstein, Binary MgO-based solid solution catalysts for methane conversion to syngas. Catalysis Reviews-Science and Engineering, 2002. 44(3): p. 423-453.
[7] Lucredio, A.F., G.T. Filho, and E.M. Assaf, Co/Mg/Al hydrotalcite¬type precursor, promoted with La and Ce, studied by XPS and applied to methane steam reforming reactions.Appl. Surf Sci., 2009. 255(11): p. 5851-5856.
[8] Tengfei Liu, H.T., Gotz Veser, Autothermal Reforming of Methane in a Reverse-Flow Reactor.Chem. Eng. Technol., 2009. 32(9): p. 1358¬1366.
[9] Ali Alizadeh, N.M., and Farhang Jalali-Farahani, Multiobjective Dynamic Optimization of an Industrial Steam Reformer with Genetic Algorithms.International Journal of Chemical Reactor Engineering, 2007. 5(A19): p. 1-16.
[10] Lange, J.P., Methanol synthesis: A short review of technology improvements. CataL Today, 2001. 64(1-2): p. 3-8.
[11] Wesenberg, M.H.,Gas Heated Steam Reformer Modelling,in Department of Chemical Engineering2006, Norwegian University of Science and Technology.
[12] Luo, N.-J., J.-A. Wang, T.-C. Xiao, F.-H. Cao, and D.-Y. Fang, Influence of nitrogen on the catalytic behaviour of Pt/y-Al203 catalyst in glycerol reforming process. CataL Today, 2010.
[13] Radovan, 0.E., G.M. Ciric, M.N. Tekic, and R.N. Paunovic, Applicability of two-membrane reactors for reversible gas phase reaction. Effects of flow patterns and inerts.1 Membr. Sci., 1997. 128: p. -221.
[14] Sinev, Y.P. Tulenin, O.V. Kalashnikova, V.Y. Bychkov, and V.N. Korchak, Oxidation of methane in a wide range of pressures and effect of inert gases. CataL Today, 1996. 32(1-4): p. 157-162.
[15] Lee, C.G., H.K. Ahn, K.S. Ahn, and H.C. Lim, Characteristics of a novel method, inert gas step addition, for the investigation of gas-phase mass-transfer effects in a molten carbonate fuel cell Electroanal. Chem., 2004. 568: p. 13-17.
[16] Xu, J. and G.F. Froment, Methane steam reforming, methanation and water-gas shift: I. Intrinsic kinetics.A/ChE 1, 1989. 35(1): p. 88-96.
[17] Bartholomew, C.H., Mechanisms of catalyst deactivation.Applied Catalysis A: General, 2001. 212: p. 17-60.
[18] Ahmed, S. and M.H. Back, The effect of water vapor and inert gases on the carbon-oxygen reaction. Carbon, 1987. 25(6): p. 783-789.