Production of aryl oxygen-containing compounds by catalytic pyrolysis of bagasse lignin over LaTi0.2Fe0.8O3 prepared by different methods

作     者：Haiying Wang Hongjing Han Enhao Sun Yanan Zhang Jinxin Li Yanguang Chen Hua Song Hongzhi Zhao Yue Kang Haiying Wang;Hongjing Han;Enhao Sun;Yanan Zhang;Jinxin Li;Yanguang Chen;Hua Song;Hongzhi Zhao;Yue Kang

作者机构：College of Chemistry&Chemical EngineeringNortheast Petroleum UniversityDaqing 163318China Provincial Key Laboratory of Oil&Gas Chemical TechnologyDaqing 163318China Daqing Petrochemical Research CenterPetroChinaDaqing 163000China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2020年第38卷第1期

页      面：76-83页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 0703[理学-化学] 

基　　金：Project supported by National Natural Science Foundation of China(51674089) Heilongjiang Provincial Science Fund for Distinguished Youth Scholar(JC2018002) Postdoctoral Scientific Research Development Fund of Heilongjiang Province(LBH-Q16037) Postgraduate Innovative Research Project of Northeast Petroleum University(YJSCX2017-014NEPU) Youth Fund of Northeast Petroleum University(2018QNL-17) 

主　　题：Bagasse lignin Perovskite Catalytic pyrolysis Aryl oxygen-containing compounds Titanium-substituted lanthanum ferrite Rare earths 

摘      要：To realize the resource and high-value utilization,a new approach,named bagasse lignin(BL) used to produce aryl oxygen-containing compounds by catalytic pyrolysis over perovskite,was proposed,LaTi0.2Fe0.8O3(LTF) samples prepared by the sol-gel method(SG) and the solid-state reaction method(SS)were characterized.The catalytic action on BL pyrolysis was performed by the test of TG-DTG and the evaluation of the fixed bed micro-reactor,the components and contents of the products were determined.The results show that LTF samples have cubic perovskite phase,LTF prepared by SG(LTF-SG) is porous with larger specific surface area than LTF prepared by SS(LTF-SS).During the pyrolysis of BL,the addition of LTF lowers the pyrolysis temperature and the activation energy,the contents of CO2 and CO in gaseous products reduce by 4.6%-8.0% and 30.7%-34.3%,respectively,the total content of aryl oxygencontaining compounds(including phenolics,guaiacols,syringols and phenylates) in liquid products increases from 62 wt% to more than 72 wt%,and LTF-SG shows better catalytic performance.LTF samples have nice phase and catalytic stabilities for BL pyrolysis after five successive redox cycles.