Hydrogen production by steam reforming of dimethyle ether over Cu/ZnO/Al2O3 and H-ZSM-5 catalysts: An experimental and modeling study

Document Type : Research Paper

Authors

1 Babol University of Technology

2 Iranian Research Organization for Science and Technology (IROST)

Abstract

Hydrogen was produced by steam reforming of dimethyl ether (DME) using a physical mixture of commercial HZSM-5 zeolite (for DME hydrolyzing) and Cu/ZnO/Al2O3 (for methanol steam reforming) as a catalyst in a fixed bed reactor. The experiments were performed at atmospheric pressure and in a temperature range from 270 to 310 °C. The effects of feed temperature and gas hourly space velocity (GHSV) between 2420 and 4615 h−1 on DME conversion and H2 and CO concentrations in the gas-phase products were investigated. In addition, the temperature changes along the catalyst bed were measured. The results showed that DME conversion increased with increasing temperature, and also, DME conversion decreased with increasing GHSV. Finally, a homogeneous one-dimensional model was used to model the reactor of hydrogen production by steam reforming of DME. The predicted temperature profile along the catalyst bed and conversion were compared with the experimental data. The model results and experimental data were found to be in good agreement.

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[1] Marban G., Valdes-Solis T., “Towards the hydrogen economy?”, Int. J. Hyd. Eng., 2007, 32(12): 1625.
[2] Palo D. R., “Methanol steam reforming for hydrogen production”, Chem. Rev., 2007, 107: 3992.
[3] Kawabata T., Matsuoka H., Shishido T., Li D., Tian Y., Sano T., Takehira K., “Steam reforming of dimethyl ether over ZSM-5 coupled with Cu/ZnO/Al2O3 catalyst prepared by homogeneous precipitation”, Appl. Catal. A: Gen., 2006, 308: 82.
[4] Topp-Jorgensen J., “Reacting crystalline aluminosilicate with nitrogen containing base, then desorption aftertreatment” U.S. Patent No. 4536485, 1985.
[5] Dybkjir I., Hansen J.B., “Large scale production of alternative synthetic fuels from natural gas”, Stud. Surf. Sci. Catal., 1997, 107: 99.
[6] Solymosi F, Barthos R, Kecskemeti A., “The decomposition and steam reforming of dimethyl ether supported Mo2C catalysts”, Appl. Catal. A, 2008, 350(1): 30.
[7] Badmaeva S.D., Snytnikov P.V., “Hydrogen production from dimethyl ether and bioethanol for fuel cell  applications”, Int. J. Hydrogen Energy, 2008, 33(12): 3026.
[8] Mathew T., Yamada Y., Ueda A., Shioyama H., Kobayashi T., Gopinath C.S., “Effect of support on the activity of Ga2O3 species for steam reforming of dimethyl ether”, Appl. Catal. A., 2006, 300(1): 58.
[9] Matsumoto T., Nishiguchi T., Kanai H., Utani K., Matsumura Y., Imamura S., “Steam reforming of dimethyl ether over H-mordenite-Cu/CeO2 catalysts”, Appl. Catal. A., 2004, 276(1): 267.
[10] Nishiguchi T., Oka K., Matsumoto T., Kanai H., Utani K., Imamura S., “Durability of WO3/ZrO2-CuO/CeO2 catalysts for steam reforming of dimethyl ether”, Appl. Catal. A., 2006, 301(1): 66.
[11] Wang X., Pan X., Lin R., Kou S., Zou W., Ma J.X., “Steam reforming of dimethyl ether over CueNi/g Al2O3 bi-functional catalyst prepared by deposition precipitation method”, Int. J. Hydrogen Energy, 2010, 35(9): 4060.
[12] Takeishi K., Suzuki H., “Steam reforming of dimethyl ether”, Appl. Catal. A., 2004, 260(1): 111.
[13] Galvita V.V., Semin G.L., Belyaev V.D., Yurieva T.M., Sobyanin V.A., “Production of hydrogen from dimethyl ether”, Appl. Catal. A., 2001, 216(1): 85.
[14] Semelsberger T.A., Ott K.C., Borup R.L., Greene H.L., “Generating hydrogen-rich fuel-cell feeds from dimethyl ether (DME) using Cu/Zn supported on various solid-acid substrates”, Appl. Catal. A., 2006, 309(2): 210.
[15] Fukunaga T., Ryumon N., Shimazu S., “The influence of metals and acidic oxide species on the reforming of dimethyl ether (DME)”, Appl. Catal. A., 2008, 348(2): 193.
[16] Yamada Y., Mathew T., Ueda A., Shioyama H., Kobayashi T., “A novel DME steam-reforming catalyst designed with fact database on-demand”, Appl. Surf. Sci., 2006, 252(7): 2593.
[17] McHugh K., “Hydrogen Production Methods”, MPR Associates Inc., 2005, p. 41.
[18] Avcm A. K., Trimm D.L., İlsen Önsan Z., “Heterogeneous reactor modeling for simulation of catalytic oxidation and steam reforming of methane”, Chem. Eng. Sci., 2001(56): 641.
[19] Lee D.K., Baek I.H., Yoon W.L.,  “Modeling and simulation for the methane steam reforming enhanced by in situ CO2 removal utilizing the CaO carbonation for H2 production”, Chem. Eng. Sci., 2004, 59: 93.
[20] Halabi M.H., de Croon J.M., Van der Schaaf J., Cobden P.D., Schouten J.C., Modeling and analysis of auto thermal reforming of methane to hydrogen in a fixed bed reformer”, Chem. Eng. J., 2008, 137: 568.
[21] Creaser D., Nilsson M., Pettersson L.J., Dawody J., “Kinetic modeling of auto thermal reforming of dimethyl ether”, Ind. Eng. Chem. Res., 2010, 49: 9712.
[22] Feng D., Wang Y., Wang D., Wang J., “Steam reforming of dimethyl ether over CuO–ZnO–Al2O3–ZrO2 + ZSM-5: A kinetic study”, Chem. Eng. J., 2009, 146: 477.
[23] Namuangruk S., Faungnawakij K., “Experimental and theoretical investigations on the hydrolysis of dimethyl ether to methanol over H-ZSM-5”, Nanotechnology joint symposium with nano Korea, 2010.
[24] Patel S., Pant K.K., “Experimental study and mechanistic kinetic modeling for selective production of hydrogen via catalytic steam reforming of methanol”, Chem. Eng. Sci., 2007, 62: 2425.