The effects of temperature and catalysts on the pyrolysis of industrial wastes (herb residue)
The effects of temperature and catalysts on the pyrolysis of industrial wastes (herb residue)
复制标题
温度和催化剂对工业废物（药渣）热解的影响
DOI：
10.1016/j.biortech.2009.12.082
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发表时间：
2010-05-01
影响因子：
11.4
通讯作者：
Hong, Nan
中科院分区：
文献类型：
--
作者：
Wang, Pan;Zhan, Sihui;Hong, Nan
在固定床上对中药残渣进行了热解研究，考察了热解温度和催化剂（ZSM-5、Al-SBA-15和氧化铝）对产物收率和生物油质量的影响。结果表明，在450℃、负载10 wt.%氧化铝催化剂的条件下，生物油收率最高可达34.26%。对热解油进行了极限分析和热值测定，结果表明，所有催化剂的存在都降低了生物油的氧含量，提高了热值。催化提质的顺序为Al2O3 > Al-SBA-15 > ZSM-5。在负载20 wt.%氧化铝催化剂的情况下，得到了含氧量最低（26.71%）、热值最高（25.94 MJ kg(-1)）的生物油。此外，采用气相色谱/质谱（GC/MS）对所得热解油的成分进行了分析。结果表明，氧化铝催化剂能明显促进脂肪族和芳烃的生成。爱思唯尔有限公司2009年版权所有版权所有。
Pyrolysis of herb residue was investigated in a fixed-bed to determine the effects of pyrolysis temperature and catalysts (ZSM-5, Al-SBA-15 and alumina) on the products yields and the qualities of bio-oils. The results indicated that the maximum bio-oil yield of 34.26% was obtained at 450 degrees C with 10 wt.% alumina catalyst loaded. The pyrolytic oils were examined by ultimate analysis and calorific values determination, and the results indicated that the presence of all catalysts decreased the oxygen content of bio-oils and increased the calorific values. The order of the catalytic effect for upgrading the pyrolytic oil was Al2O3 > Al-SBA-15 > ZSM-5. The bio-oil with the lowest oxygen content (26.71%) and the highest calorific value (25.94 MJ kg(-1)) was obtained with 20 wt.% alumina catalyst loaded. Furthermore, the gas chromatography/mass spectrometry (GC/MS) was used in order to investigate the components of obtained pyrolytic oils. It was found that the alumina catalyst could clearly enhance the formation of aliphatics and aromatics. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.