High hydrogen yield and purity from palm empty fruit bunch and pine pyrolysis oils

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• 作者：Rohaya Md Zin ; Am ; a Lea-Langton ; Valerie Dupont ; Martyn V. Twigg
• 关键词：Steam reforming ; CO2-sorption enhancement ; Pyrolysis oil ; Nickel catalyst ; Hydrogen production ; Dolomite
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 出版时间：July, 2012
• 年：2012
• 卷：37
• 期：14
• 页码：10627-10638
• 全文大小：1038 K

文摘

The benefits of CO₂ sorption enhanced steam reforming using calcined dolomite were demonstrated for the production of hydrogen from highly oxygenated pyrolysis oils of the agricultural waste palm empty fruit bunches (PEFB) and pine wood. At 1?atm in a down-flow packed bed reactor at 600?¡ãC, the best molar steam to carbon ratios were between 2 and 3 using a Ni catalyst. After incorporating steam-activated calcined dolomite as the CO₂ sorbent in the reactor bed, the H₂ yield from the moisture free PEFB oil increased from 9.5 to 10.4?wt. % while that of the pine oil increased from 9.9 to 13.9?wt. % . The hydrogen purity also rose from 68 to 96 % and from 54 to 87 % for the PEFB and pine oils respectively, demonstrating very substantial sorption enhancement effects.