STUDY ON Ni-Ce-La/HZSM-5 CATALYZED REFORMATION OF TAR MODLE COMPOUNDS TOLUENE

Meng Zhuhui; Liu Qian; Zhong Wenqi; Gao Ke

doi:10.19912/j.0254-0096.tynxb.2021-1235

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (3) : 260-269. DOI: 10.19912/j.0254-0096.tynxb.2021-1235

STUDY ON Ni-Ce-La/HZSM-5 CATALYZED REFORMATION OF TAR MODLE COMPOUNDS TOLUENE

Meng Zhuhui, Liu Qian, Zhong Wenqi, Gao Ke

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Abstract

Using toluene as biomass gasification tar model compound, the effects of Ni loading and addition of Ce and La metal modification on the catalytic performance of Ni/HZSM-5 catalyst for toluene reforming were studied in a small quartz reaction tube,combined with BET, XRD, SEM, H₂-TPR, TGA and XPS characterization methods to investigate the activity and stability of catalysts. The experimental results show that when the reaction conditions are 750 ℃ and the water-carbon ratio (S/C) is 2.5, the optimum Ni loading is 6wt%. Activity and stability of 6Ni/HZSM-5 can be greatly improved by adding metal Ce and La, of which the effect is best when 3wt% Ce is added alone, adding Ce and La at the same time will produce a synergistic effect. Among them, the 6Ni-3Ce-1La/HZSM-5 catalyst has the best performance, the conversion efficiency of toluene can be as high as 95.48%, the carbon deposition rate is only 0.41wt%, and it can maintain high thermal stability.

Key words

biomass energy / tar / molecular sieve / toluene / chemical modification / catalytic reforming

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Meng Zhuhui, Liu Qian, Zhong Wenqi, Gao Ke. STUDY ON Ni-Ce-La/HZSM-5 CATALYZED REFORMATION OF TAR MODLE COMPOUNDS TOLUENE[J]. Acta Energiae Solaris Sinica. 2023, 44(3): 260-269 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1235

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