Oxidative steam reforming of vacuum residue for hydrogen production

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• 作者：Mukesh Kumar Sahu ; A.S.K. Sinha ; ^{asksinha.che@itbhu.ac.in}
• 关键词：Hydrogen ; Vacuum residue ; Oxidative steam reforming ; Pt catalyst
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 出版时间：January, 2012
• 年：2012
• 卷：37
• 期：2
• 页码：1425-1435
• 全文大小：726 K

文摘

A two-step process for production of hydrogen from vacuum residue has been developed. In the first step, which has already been communicated , the residue is reacted with ozone to get oxidized and cracked products. Next, the catalytic oxidative steam reforming of the product obtained after ozonation over a Pt catalyst supported on La₂O₃-CeO₂-¦Ã-Al₂O₃ was carried out. Effects of the operating conditions: the temperature, the steam to carbon ratio and the oxygen to carbon ratio on oxidative steam reforming were investigated. The oxidative steam reforming was efficient at the molar ratio of O₂/C?=?0.5, S/C?=?4 at 1173?K. Pt catalyst deactivated with time due to coke formation. The catalyst could be regeneration by blowing oxygen through the catalytic bed. Catalysts were characterized by XRD, N₂ adsorption-desorption and thermo gravimetrically to understand the microstructures.