催化作用
双金属片
X射线光电子能谱
tar(计算)
材料科学
堇青石
初湿浸渍
热解
催化裂化
打赌理论
扫描电子显微镜
化学工程
程序升温还原
核化学
选择性
化学
复合材料
有机化学
计算机科学
工程类
程序设计语言
作者
Min Lu,Pengmei Lv,Zhenhong Yuan,Huiwen Li
标识
DOI:10.1016/j.renene.2013.04.020
摘要
In order to crack the tar from biomass pyrolysis, five cordierite-supported monolithic catalysts with different Ni/Co ratio were prepared by vacuum wetness impregnation. All catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), Brunauer–Emmett–Teller (BET), and scanning electron microscope (SEM). XRD and XPS characterization results show the inexistence of spinel structure such as NiAl2O4 and CoAl2O4. TPR characterization results suggest the possible formation of Ni–Co alloy. BET characterization results show that the effect of Ni/Co ratio on catalyst specific surface area is obvious. The catalytic test results show that the performance of bimetallic catalyst is better than that of monometallic catalyst. The Ni3Co1/cordierite catalyst exhibits the best catalytic performance among all bimetallic catalysts, its tar conversion and gas yield reach 96.4% and 1.21 Nm3/kg, respectively, at a weight hourly space velocity (WHSV) of 1.4 h−1.
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