Oriented linear cutting fiber sintered felt as an innovative catalyst support for methanol steam reforming
Oriented linear cutting fiber sintered felt as an innovative catalyst support for methanol steam reforming
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DOI：
10.1016/j.ijhydene.2011.01.021
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发表时间：
2011-06
影响因子：
7.2
通讯作者：
Minqiang Pan;Yong Tang;Xiaoling Wei;Xiang Jiang
中科院分区：
文献类型：
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作者：
Minqiang Pan;Yong Tang;Xiaoling Wei;Xiang Jiang
提出了一种新型定向直线切割纤维烧结毡作为甲醇蒸汽重整催化剂载体。采用切削法制备的多根长铜纤维平行排列，在高温和保护气体环境下，在模压设备中烧结在一起。研究了Cu/Zn/Al/Zr催化剂包覆定向线切割纤维烧结毡在不同GHSVs和反应温度下的甲醇蒸汽重整性能。结果表明，在低GHSV或反应温度条件下，烧结毡的结构是影响反应性能的关键因素，而在高GHSV或反应温度条件下，烧结毡的结构对反应性能的影响较小。通过SEM图像分析和超声振动测试方法发现，切割纤维的粗糙表面图案可以有效地增强催化剂与铜纤维之间的粘附强度，并且在微通道中呈现较大的比表面积。因此，在低GHSV或反应温度条件下，取向线切割纤维烧结毡的甲醇蒸汽重整性能优于取向线切割铜丝烧结毡。
A kind of oriented linear cutting fiber sintered felt as an innovative catalyst support for methanol steam reforming was proposed. Multiple long copper fibers fabricated by cutting method were arranged in parallel and then sintered together in a mold pressing equipment under the condition of high temperature and protective gas atmosphere. The characteristics of oriented linear cutting fiber sintered felt coated with Cu/Zn/Al/Zr catalyst for methanol steam reforming were experimental investigated under different GHSVs and reaction temperatures. Results indicated that the structure of sintered felt was the key influencing factor for the reaction performances on the condition of low GHSV or reaction temperature whereas the structure of sintered felt showed little influences with high GHSV or reaction temperature. By the analysis of SEM image and ultrasonic vibration testing method, it was found that the coarse surface pattern of cutting fiber could effectively enhance the adhesion intensity between the catalyst and the copper fibers, as well as present relatively large specific surface area in the microchannels. And hence the oriented linear cutting fiber sintered felt present better performances of methanol steam reforming than the oriented linear copper wire sintered felt on the condition of low GHSV or reaction temperature.