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Effect of La on Ni-W-B amorphous catalysts in hydrodeoxygenation of phenol

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成果類型:
期刊論文
作者:
Wang, Weiyan;Yang, Yunquan;Luo, Hean;Peng, Huizou;Wang, Feng
通訊作者:
Yang, Y.(yangyunquan@xtu.edu.cn)
作者機構:
[Yang, Yunquan; Peng, Huizou; Luo, Hean; Wang, Weiyan; Wang, Feng] Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Hunan, Peoples R China.
[Wang, Feng] Hunan City Univ, Dept Chem & Environm Engn, Yiyang 413000, Peoples R China.
通訊機構:
School of Chemical Engineering, Xiangtan University, China
語種:
英文
期刊:
Industrial and Engineering Chemistry Research
ISSN:
0888-5885
年:
2011
卷:
50
期:
19
頁碼:
10936-10942
基金類別:
Hunan Provincial Education DepartmentHunan Provincial Education Department [10K062]; Hunan Provincial Innovation Foundation for Postgraduate study [CX2009B135]
機構署名:
本校為其他機構
院系歸屬:
材料與化學工程學院
摘要:
Ni-W-B and La-promoted Ni-W-B amorphous catalysts were prepared by chemical reduction and applied within the hydrodeoxygenation (HDO) of phenol. The resulting catalysts were characterized by surface area, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results showed that some of the electrons were transferred from B<sup>0</sup> to Ni<sup>0</sup> in Ni-W-B amorphous catalyst. La promoted the reduction of Ni<sup>2+</sup> to Ni<sup>0</sup> and increased the WO<inf>3</inf> content on the catalyst surface. Adding appropriate La in Ni-W-B amorphous catalyst improved the amorphous degree of the catalyst, but excess amounts of La covered some active sites and decreased the catalyst surface area. The HDO of phenol on these amorphous catalysts proceeded via the hydrogenation-dehydration route, leading to no benzene in the products, which could meet the standard of clear fuel in European regulation. La-Ni-W-B amorphous catalysts exhibited higher activities in theHDOof phenol than Ni-W-B amorphous catalyst. &copy;2011 American Chemical Society.

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