Study on pyrolysis law of catalytic biomass tar model compounds

doi:10.3969/j.issn.2097-0706.2023.05.007

Abstract

Abstract:

In order to expand the utilization of renewable energy，the catalytic conversion of biomass tar is explored. Nickel-based molecular sieve catalysts were prepared by using molecular sieve as the carrier. The effects of different catalysts and pyrolysis temperature on the catalytic pyrolysis of biomass tar model compounds were investigated. The results showed that Ni loading greatly increased the catalytic activity of the catalyst and promoted the gas product yield from the catalytic reaction. With the secondary loading of auxiliaries Ca and Co， the metal-metal interaction further improved the mechanical strength and reaction stability of the catalyst. Through the study on pyrolysis temperature， it was found that with the increase of temperature， the conversion rate and the pyrolysis gas yield of the model increased significantly. The high temperature promoted the hydrogen transfer reaction between the catalyst and the model. Catalyzed by Ni?Ca?Co/HZSM?5， the model compound can be converted from macro-molecular organic matter to small molecular gas， and the conversion rate reached more than 90%. The study lays a solid foundation for further study on biomass tar catalytic transformation.

Key words: nickel-based catalyst, biomass tar, model compound, catalytic pyrolysis, auxiliary metal, renewable energy

CLC Number:

CHEN Wenxuan, LI Xueqin, LIU Peng, LI Yanling, LU Yan, LEI Tingzhou. Study on pyrolysis law of catalytic biomass tar model compounds[J]. Integrated Intelligent Energy, 2023, 45(5): 63-69.

Figures/Tables 7

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