SIMULATION STUDY OF CO-PYROLYSIS OF CELLULOSE LIGNIN AND POLYPROPYLENE TO PRODUCE BIO-OIL CATALYZED BY METAL MODIFIED MCM-41

Li Yanji; Song Zhaohui; Wang Lei; Yu Xiang; Wu Yutong

doi:10.19912/j.0254-0096.tynxb.2025-0262

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 482-488. DOI: 10.19912/j.0254-0096.tynxb.2025-0262

SIMULATION STUDY OF CO-PYROLYSIS OF CELLULOSE LIGNIN AND POLYPROPYLENE TO PRODUCE BIO-OIL CATALYZED BY METAL MODIFIED MCM-41

Li Yanji, Song Zhaohui, Wang Lei, Yu Xiang, Wu Yutong

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Abstract

In this paper, MCM-41 mesoporous molecular sieve catalysts modified by Cu, Fe, Co and Ni elements were prepared by impregnation method. XRD and BET characterization analyses were carried out on the modified catalysts to explore the physicochemical structures and other characteristics of catalysts modified by different metals.The effects of co-pyrolysis of cellulose, lignin and polypropylene （PP） on the synergistic reaction and the distribution of pyrolysis products were investigated by TG-FTIR and Py-GC/MS. The results show that MCM-41 can promote the reaction between biomass and PP, and the yields of aromatics and light hydrocarbons are increased. Compared with MCM-41, modified MCM-41 can promote the precipitation of light olefins, C₅~C₁₁ aliphatic hydrocarbons and aromatics. Cu, Fe and Co modification can promote the formation of monocyclic aromatics. Compared with MCM-41, MP-M/Fe has the highest proportion of olefin precipitation, reaching 59.68%, and XP-M/Fe has the highest proportion of light olefin precipitation, reaching 32.84%. XP-M/Co has the highest proportion of alkane precipitation, reaching 34.22%. The proportion of other groups of alkenes and alkanes in the pyrolysis products increases.

Key words

biomass / pyrolysis / polypropylenes / metal modified MCM-41 / bio-oil / product distribution / characterization

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Li Yanji, Song Zhaohui, Wang Lei, Yu Xiang, Wu Yutong. SIMULATION STUDY OF CO-PYROLYSIS OF CELLULOSE LIGNIN AND POLYPROPYLENE TO PRODUCE BIO-OIL CATALYZED BY METAL MODIFIED MCM-41[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 482-488 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0262

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