Nickel supported over MCM-41 coated ceramic membrane for steam reforming of real tar |
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Authors: | Ningbo Gao Kailun Chen Cui Quan Shixi Wu |
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Affiliation: | 1. School of Energy and Power Engineering, Xi''an Jiaotong University, Shaanxi 710049, China;2. Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace, Hubei 441057, China |
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Abstract: | A novel catalyst, Nickel supported over MCM-41 coated ceramic membrane (NMC), was developed using coating method and deposition-precipitation method and applied for steam reforming of real tar in fixed bed. The effects of reaction conditions such as Ni loading amount, reaction temperature and mass ratio of steam to tar were also studied. The good dispersion of Ni nanoparticles and the strong interaction between Ni particles and the support were identified by BET, XRD, H2-TPR and SEM/EDS, resulting in the excellent performance of NMC catalysts. Maximum tar conversion of 96.4% and H2 yield of 98.7 mmol g?1 were obtained using 20NMC with a mass ratio of steam to coal tar of 2 at 800 °C. Moreover, 20 NMC exhibited a good stability in 10 h of lifetime test and the resistance of graphitic carbon formation prone to easier regeneration of catalysts illustrated by Raman spectroscopy. It indicates that the utilization of NMC catalysts for tar steam reforming is a promising way. |
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Keywords: | Tar reforming Nickel MCM-41 Ceramic membrane |
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