Aqueous phase reforming of sorbitol to bio-gasoline over Ni/HZSM-5 catalysts

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• 作者：Qing Zhang^a ; Tiejun Wang^a ; ^{wangtj@ms.giec.ac.cn} ; Bing Li^b ; Ting Jiang^a ; Longlong Ma^a ; ^{mall@ms.giec.ac.cn} ; Xinghua Zhang^a ; Qiying Liu^a
• 关键词：Bio-gasoline ; Sorbitol ; Ni/HZSM-5 catalyst ; Aqueous phase reforming
• 刊名：Applied Energy
• 出版年：2012
• 期刊代码：2_03062619
• 类别：pw
• 出版时间：September, 2012
• 卷：97
• 期：Complete
• 页码：509-513
• 文件大小：247 K

摘要

Liquid fuel such as bio-gasoline derived from biomass is widely recognized as a potential substitution for the diminishing fossil fuels due to its abundance of raw materials and lower greenhouse gas emissions. In this work, Ni/HZSM-5 catalysts were developed by incipient impregnation method and applied in the bio-gasoline production by aqueous phase reforming of sorbitol. The effects of reaction temperature, hydrogen pressure and calcination temperature of the catalysts on the catalytic performance were investigated. The activity test results showed that the catalyst calcined at 500 掳C had the maximal activity with 47.6%of the bio-gasoline yield and 76.4%of the total selectivity of lighter alkanes (C₅C₆) at 240 掳C and 4.0 MPa. The catalysts were characterized by N₂ physical adsorption, H₂ temperature-programmed reduction (H₂TPR), H₂ temperature-programmed desorption (H₂TPD), and infrared spectroscopy (IR) techniques. The characterization results revealed that the catalyst calcined at 500 掳C can provide optimum surface area and pore volume for the reaction. Moreover, 100%of the reducibility of Ni species was detected on the surface of HZSM-5, following by more nickel active sites, which led to a visible increase in the yield of bio-gasoline.