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Catalytic pyrolysis of woody oil over SiC foam-MCM41 catalyst for aromatic-rich bio-oil production in a dual microwave system
Journal of Cleaner Production ( IF 11.1 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.jclepro.2020.120179
Zhenting Yu , Lin Jiang , Yunpu Wang , Yanzhi Li , Linyao Ke , Qi Yang , Yujie Peng , Jiamin Xu , Leilei Dai , Qiuhao Wu , Yuhuan Liu , Roger Ruan , Donghua Xia , Li Jiang

The homogeneous internal heating of solid catalyst during high-temperature conversion reactions is beneficial for reducing of coke formation. However, the non-uniform temperature heating of traditional catalytic reforming process hindered the development. Herein, a dual microwave reaction system with upgrading heating method was built to conduct the catalytic pyrolysis of woody oil over a SiC-MCM41 catalyst. The effects of pyrolysis temperature, catalytic temperature and catalyst to feed ratio were investigated. The pyrolysis behaviors of the four major fatty acids in materials were discussed under optimal reaction conditions with different catalysts. Experimental results showed that microwave catalysis reduced the coke formation and extended the service life of the catalyst and increased the hydrocarbon content to 94.833 wt% (71.409 wt% of aromatics) which may implicate the industrial production. The types of fatty acids have a greater impact on the pyrolysis products than the catalysts, among which the maximum amount of aromatics obtained from the pyrolysis of linolenic acid was 92.43 wt%. This finding provides a partial reference in commercial application for obtaining a high content of target products in the field of single oil pyrolysis in the future.



中文翻译:

SiC泡沫-MCM41催化剂上木油的催化热解,用于双微波系统中富芳烃生物油的生产

在高温转化反应期间固体催化剂的均匀内部加热对于减少焦炭形成是有利的。但是,传统的催化重整过程温度加热不均匀,阻碍了其发展。在此,构建了具有升级加热方法的双微波反应系统,以在SiC-MCM41催化剂上进行木质油的催化热解。研究了热解温度,催化温度和催化剂进料比的影响。讨论了在不同催化剂的最佳反应条件下,材料中四种主要脂肪酸的热解行为。实验结果表明,微波催化减少了焦炭的形成并延长了催化剂的使用寿命,并使烃含量增加至94.833 wt%(71。409 wt%的芳烃)可能暗示了工业生产。脂肪酸的类型对热解产物的影响大于催化剂,其中从亚麻酸热解获得的芳族化合物的最大量为92.43wt%。该发现为将来在单油热解领域获得高含量目标产物提供了部分商业参考。

更新日期:2020-01-21
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