Continuous pyrolysis and catalytic upgrading of corncob hydrolysis residue in the combined system of auger reactor and downstream fixed-bed reactor

文献类型： 外文期刊

第一作者： Li, Yuping

作者： Li, Yuping;Li, Bosong;Zhang, Xinghua;Chen, Lungang;Zhang, Qi;Wang, Tiejun;Ma, Longlong;Li, Bosong

作者机构：

关键词： Pyrolysis;Ex situ catalysis;Bio-oil upgrading;HZSM-5;Mono-phenols and aromatics

期刊名称：ENERGY CONVERSION AND MANAGEMENT （ 影响因子：9.709； 五年影响因子：8.954 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Continuous pyrolysis of corncob hydrolysis residue, coupled with ex situ catalytic upgrading of the pyrolysis vapor, was investigated in the combined system of an auger reactor and a downstream fixed-bed reactor. The effect of the zeolite catalyst, USY (ultrastable Y) and HZSM-5 (Si/Al=25, 38) and catalytic temperature on the raw bio-oil upgrading were discussed. The results showed the strong acidity of porous zeolite was essential for catalytic deoxygenation during upgrading pyrolysis vapor. HZSM-5 (25), with the strong acidity and acidic sites, had favored the deoxygenation conversion of carbonyl/carboxyl-containing oxygenates in the pyrolysis vapor, which decreased its content to 2.3 area% via the GC-MS analysis of the upgraded bio-oil. Mono-phenols (phenol and alkylphenols) were enhanced to 53.2 area% over HZSM-5 (25), as compared with that of 17.3 area% during non-catalysis process. The addition of ex situ catalytic upgrading had improved the quality of organic big-oil at the expense of its yield. Coke formation on the strong acidic sites by condensation of intermediates is detrimental to organic bio-oil yield. The increase of catalysis temperature at the fixed-bed reactor decreased oxygenate compounds to 7.1 area%, 23 area% and 1.9 area% at 450 degrees C, 550 degrees C and 650 degrees C, respectively, with 0.75 s of vapor residence time. The TG/DTG/DSC characterization of the used HZSM-5 (25) implied that the coke had deposited on the surface of HZSM-5 (25), which could be removed by combustion to recover its activity. (C) 2016 Elsevier Ltd. All rights reserved.

分类号： TK

  • 相关文献

[1]Characterization and Application of Magnetic Biochars from Corn Stalk by Pyrolysis and Hydrothermal Treatment. . 2017

[2]Thermal cracking products and bio-oil production from microalgae Desmodesmus sp.. Li Gang,Huang Zhigang,Xiang Shunan,Ji Fang,Zhou Yuguang,Zhou Yuguang. 2017

[3]Preparations of Methylphenyldiethoxsilane by One Step Grignard Method and Methylphenylcyclosiloxane by Hydrolysis and Pyrolysis Methods. Li, Min,Jiang, Bo-Quan,Chen, Liu-Meng. 2015

[4]Investigation of waste metalworking fluids sludge pyrolysis for characterization of pyrolysis oil and char properties. Zuo, Wu,Zuo, Wu,Jin, Baosheng,Huang, Yaji,Xie, Zhikai.

[5]Detailed Temperature-dependent Study of n-Heptane Pyrolysis at High Temperature. He Guozhong,Zhang Liang. 2013

[6]Pyrolytic characteristics and kinetic studies of three kinds of red algae. Zhang, Xiaowen,Ye, Naihao,Li, Demao,Chen, Limei,Xing, Fuguo. 2011

[7]Life cycle assessment of pyrolysis process of Desmodesmus sp.. Li Gang,Ji Fang,Zhou Yuguang,Dong Renjie,Ji Fang,Zhou Yuguang,Dong Renjie,Ji Fang. 2015

[8]Bio- and hydrochars from rice straw and pig manure: Inter-comparison. Liu, Yuxue,Wang, Yuying,Lu, Haohao,Yang, Shengmao,Liu, Yuxue,Wang, Yuying,Lu, Haohao,Yang, Shengmao,Yao, Shuai,Brar, Satinder Kaur.

[9]Field-scale fluorescence fingerprinting of biochar-borne dissolved organic carbon. Liu, Zhongzhen,Liu, Zhongzhen,Sistani, Karamat.

[10]Non-isothermal pyrolysis characteristics of giant reed (Arundo donax L.) using thermogravimetric analysis. Huang, Lei,Chen, Yucheng,Liu, Geng,Li, Shengnan,Liu, Yun,Huang, Lei,Chen, Yucheng,Liu, Geng,Li, Shengnan,Liu, Yun,Gao, Xu.

作者其他论文 更多>>

微信小程序