镍改性多层MFI纳米片用于玉米秸秆与聚乙烯共热解制备富烃产物

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials Pub Date : 2025-08-08 DOI:10.1016/j.micromeso.2025.113810

Gao Shen , Zhaosheng Yu , Wen Teng , Xikui Zhang , Jinbo Zhan , Huirong Ni , Xiaoqian Ma

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引用次数: 0

摘要

合成了不同Ni负载比（3、6、10 wt%）的多层MFI纳米片（MMN），制备了富烃产品。热重分析表明，玉米秸秆（CS）与聚乙烯（PE）以3:2的比例混合，具有明显的增效作用。采用Py-GC/MS研究了不同剂量的MMN和不同镍负载对热解产物的影响。单环芳烃（Monocyclic aromatic hydrocarbons, MAHs）在CP2M时开始检出，达到最大值30.08%，而含氧化合物（OCCs）较CPNC减少43.75%。不同的Ni负载率进一步增强了MMNs的脱氧能力，低Ni负载率（3 wt%）的MMNs的OCCs相对含量最低，为3.67%。Ni的引入改变了MMN的B/L比，从而抑制了多环芳烃（PAHs）的生成。本研究为金属改性MMN生物质热解制备富烃燃料提供了一条新的途径。

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Ni-modified multilayer MFI nanosheets for co-pyrolysis of corn stover and polyethylene to prepare hydrocarbon-rich products

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Ni-modified multilayer MFI nanosheets for co-pyrolysis of corn stover and polyethylene to prepare hydrocarbon-rich products

Multilayer MFI nanosheets (MMN) with different Ni loading ratios (3, 6, 10 wt%) were synthesized to prepare hydrocarbon-rich products. In view of the thermogravimetric analysis, A mixture of corn stover (CS) and polyethylene (PE) in a ratio of 3:2 exhibits a pronounced synergistic effect. The effects of different doses of MMN and different nickel loadings on pyrolysis products were studied using Py-GC/MS. Monocyclic aromatic hydrocarbons (MAHs) began to be detected and reached a maximum value of 30.08 % at CP2M, while oxygen-containing compounds (OCCs) decreased by 43.75 % compared to CPNC. The deoxygenation ability of MMNs was further enhanced with different Ni loading ratios, with MMNs having a low Ni loading ratio (3 wt%) achieving the minimum relative content of OCCs at 3.67 %. The introduction of Ni species altered the B/L ratio of MMN, thereby inhibiting the generation of polycyclic aromatic hydrocarbons (PAHs). This work provided a new pathway for preparing hydrocarbon-rich fuels from biomass pyrolysis by using metal-modified MMN.

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来源期刊

Microporous and Mesoporous Materials 化学-材料科学：综合

CiteScore

10.70

自引率

5.80%

发文量

649

审稿时长

26 days

期刊介绍： Microporous and Mesoporous Materials covers novel and significant aspects of porous solids classified as either microporous (pore size up to 2 nm) or mesoporous (pore size 2 to 50 nm). The porosity should have a specific impact on the material properties or application. Typical examples are zeolites and zeolite-like materials, pillared materials, clathrasils and clathrates, carbon molecular sieves, ordered mesoporous materials, organic/inorganic porous hybrid materials, or porous metal oxides. Both natural and synthetic porous materials are within the scope of the journal. Topics which are particularly of interest include: All aspects of natural microporous and mesoporous solids The synthesis of crystalline or amorphous porous materials The physico-chemical characterization of microporous and mesoporous solids, especially spectroscopic and microscopic The modification of microporous and mesoporous solids, for example by ion exchange or solid-state reactions All topics related to diffusion of mobile species in the pores of microporous and mesoporous materials Adsorption (and other separation techniques) using microporous or mesoporous adsorbents Catalysis by microporous and mesoporous materials Host/guest interactions Theoretical chemistry and modelling of host/guest interactions All topics related to the application of microporous and mesoporous materials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.