Catalytic depolymerization of lignin for liquefied fuel at mild condition by rare earth metals loading on CNT
Catalytic depolymerization of lignin for liquefied fuel at mild condition by rare earth metals loading on CNT
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DOI：
10.1016/j.fuproc.2016.09.003
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发表时间：
2017-06
影响因子：
7.5
通讯作者：
Qiaozhi Ma;Qiyu Liu;Wenzhi Li;Longlong Ma;Jindong Wang;Minghou Liu;Qi Zhang-
中科院分区：
文献类型：
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作者：
Qiaozhi Ma;Qiyu Liu;Wenzhi Li;Longlong Ma;Jindong Wang;Minghou Liu;Qi Zhang-
研究了碳纳米管负载稀土金属对木质素催化解聚的影响。首先用TEM和N2-BET对碳纳米管上负载的铈和镧进行了表征。所制备的催化剂对木质素解聚效率高，在260℃，1 h的条件下，Ce/CNT催化剂的液化燃料收率为86.1%。该催化剂经过4次循环后仍具有较高的活性，液化燃料收率仍保持在82.0%。该液化燃料具有高碳、高氢、低氧、高热值等特点，是优质燃料。从这些测试结果可以清楚地发现，Ce/CNT是一种有效的催化剂，可以在温和的条件下解聚木质素。
A series of rare earth metals supported on carbon nanotube (CNT) were tested for the catalytic depolymerization of lignin. The supported cerium (Ce) and lanthanum (La) on CNT were firstly characterized by TEM and N2-BET, respectively. The as-prepared catalysts were efficient to depolymerize lignin, whereas 86.1% liquefied fuel yield was obtained at the conditions of 260 °C, 1 h with Ce/CNT catalyst. The catalyst presented high activity even after four times recycle and the yield of liquefied fuel still kept 82.0%. The liquefied fuel were evaluated to be a premium fuel with high contents of C and H and low content of O, together with high calorific value. From these tested results, it is clear to find that Ce/CNT is an effective catalyst which can depolymerize lignin under mild conditions.