典型文献
Production of phenolic compounds in catalytic pyrolysis of bagasse lignin in the presence of Ca0.5Pr0.5FeO3
文献摘要:
Herein,sodium dodecylbenzene sulfonate (SDBS) was used as a template to control the synthesis of Ca0.5Pr0.5FeO3.Its microstructure,composition,and morphology were detected via X-ray diffraction(XRD),Fourier transform infrared spectroscopy (FT-IR),and scanning electron microscopy (SEM).The properties of catalyzing bagasse lignin (BL) pyrolysis were determined by thermogravimetric analysis(TG) test and evaluation of a fixed bed alumina microreactor.The results show that the sample Ca0.5Pr0.5FeO3 regulated by SDBS has a cubic crystal phase,and the addition of SDBS does not cause phase transition.Moreover,when the SDBS concentration is 0.10 mol/L,the particle size is 200-500 nm and the specific surface area is 11.26 m2/g.The yields of gas,liquid,and solid products in the BL catalytic pyrolysis are 39.58 wt%,26.76 wt% and 32.36 wt%,respectively.The contents of CO2 and CO decrease from 54.07%and 4.98% to 45.29% and 3.23%,respectively.The liquid products are mainly guaiacol,syringol,and phenol,and the total selectivity of phenols is 83.67%,accompanied by a small amount of non-aromatic oxygen-containing compounds (five-membered ring (furan) or ester).Compared with the BL pyrolysis and Ca0.5Pr0.5FeO3 catalytic pyrolysis products,the selectivity of guaiacol compounds increases by 43.26%,while those of syringol compounds and phenylketones decrease by 30.08% and 3.39%,respec-tively.The selectivity of 2,6-dimethoxyphenol is 28.37%.After five catalytic pyrolysis-regeneration cycles,the characteristic peaks of the catalyst do not change significantly and the particles are uniform,sug-gesting that the catalyst has good crystal phase stability and regeneration stability.
文献关键词:
中图分类号:
作者姓名:
Hongjing Han;Qin Ge;Mei Zhang;Yanguang Chen;Haiying Wang;Yanan Zhang;Yizhen Wang;Hua Song;Chunlei Zhang
作者机构:
College of Chemistry & Chemical Engineering,Northeast Petroleum University,Daqing 163318,China;Heilongjiang Provincial Key Laboratory of Oil & Gas Chemical Technology,Daqing 163318,China
文献出处:
引用格式:
[1]Hongjing Han;Qin Ge;Mei Zhang;Yanguang Chen;Haiying Wang;Yanan Zhang;Yizhen Wang;Hua Song;Chunlei Zhang-.Production of phenolic compounds in catalytic pyrolysis of bagasse lignin in the presence of Ca0.5Pr0.5FeO3)[J].稀土学报(英文版),2022(02):279-288
A类:
5Pr0,5FeO3,guaiacol,syringol,phenylketones
B类:
Production,phenolic,compounds,catalytic,pyrolysis,bagasse,lignin,presence,Ca0,Herein,sodium,dodecylbenzene,sulfonate,SDBS,was,used,template,control,synthesis,Its,microstructure,composition,morphology,were,detected,via,ray,diffraction,Fourier,transform,infrared,spectroscopy,FT,scanning,electron,microscopy,properties,catalyzing,BL,determined,by,thermogravimetric,analysis,test,evaluation,fixed,bed,alumina,microreactor,results,show,that,sample,regulated,cubic,crystal,phase,addition,does,not,cause,transition,Moreover,when,concentration,size,specific,surface,area,yields,liquid,solid,products,wt,respectively,contents,decrease,from,mainly,total,selectivity,phenols,accompanied,small,amount,aromatic,oxygen,containing,five,membered,furan,ester,Compared,increases,while,those,dimethoxyphenol,After,regeneration,cycles,characteristic,peaks,catalyst,change,significantly,particles,uniform,sug,gesting,good,stability
AB值:
0.483867
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