Effect of alkali-treated HZSM-5 zeolite on the production of aromatic hydrocarbons from microwave assisted catalytic fast pyrolysis (MACFP) of rice husk

Li, Zhaoying; Zhong, Zhaoping; Zhang, Bo; Wang, Wei; Seufitelli, Gabriel V.S.; Resende, Fernando L.P.

doi:10.1016/j.scitotenv.2019.134605

Cited by 45 publications

(10 citation statements)

References 41 publications

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“…The hierarchical system assists the ZSM-5 structure of the catalyst to remain integrated. Li et al, 2020 discussed that aromatic hydrocarbon synthesis via microwave-aided catalytic fast pyrolysis (MACFP) of rice husk was studied using alkali-treated HZSM-5 zeolite ( Figure 8 ) [ 130 ].…”

Section: Potential and Challenges Of Zeolitementioning

confidence: 99%

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A Comprehensive Review on Zeolite Chemistry for Catalytic Conversion of Biomass/Waste into Green Fuels

et al. 2022

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Numerous attempts have been made to produce new materials and technology for renewable energy and environmental improvements in response to global sustainable solutions stemming from fast industrial expansion and population growth. Zeolites are a group of crystalline materials having molecularly ordered micropore arrangements. Over the past few years, progress in zeolites has been observed in transforming biomass and waste into fuels. To ensure effective transition of fossil energy carriers into chemicals and fuels, zeolite catalysts play a key role; however, their function in biomass usage is more obscure. Herein, the effectiveness of zeolites has been discussed in the context of biomass transformation into valuable products. Established zeolites emphasise conversion of lignocellulosic materials into green fuels. Lewis acidic zeolites employ transition of carbohydrates into significant chemical production. Zeolites utilise several procedures, such as catalytic pyrolysis, hydrothermal liquefaction, and hydro-pyrolysis, to convert biomass and lignocelluloses. Zeolites exhibit distinctive features and encounter significant obstacles, such as mesoporosity, pore interconnectivity, and stability of zeolites in the liquid phase. In order to complete these transformations successfully, it is necessary to have a thorough understanding of the chemistry of zeolites. Hence, further examination of the technical difficulties associated with catalytic transformation in zeolites will be required. This review article highlights the reaction pathways for biomass conversion using zeolites, their challenges, and their potential utilisation. Future recommendations for zeolite-based biomass conversion are also presented.

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Section: Potential and Challenges Of Zeolitementioning

confidence: 99%

“… Lignocellulosic reaction path with the help of hierarchical zeolites (Li et al, 2020, Elsevier) [ 130 ]. …”

Section: Figurementioning

confidence: 99%

A Comprehensive Review on Zeolite Chemistry for Catalytic Conversion of Biomass/Waste into Green Fuels

et al. 2022

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“…Li and co-workers 81 uses TPAOH organic alkali solution for desilication, because inorganic alkali (NaOH) desilication is not easy to control. Alkali treatment largely helps to form mesopores, thereby improving the transport performance in the catalytic system, thereby reducing the accumulation of cokes over catalyst surface materials, improving the diffusion of macromolecules from the inner surface of the catalyst to the exterior of the zeolite ("internal diffusion").…”

Section: Modification Of the Top-down Approachmentioning

confidence: 99%

Section: Fast Catalytic Pyrolysis Of Biomass With Zeolite Catalystsmentioning

confidence: 99%

Biomass Catalytic Pyrolysis over Zeolite Catalysts with an Emphasis on Porosity and Acidity: A State-of-the-Art Review

et al. 2020

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The massive consumption of petroleum and the increasingly deteriorating environment has triggered the attention and development of sustainable chemistry recently. Biomass source is the only renewable carbon source on Earth, which is regarded as the potential alternative to the current fossil fuels that cannot be regenerated in a short time. Past decades have witnessed great advances in the utilization of biomass with developed technologies. However, the quality of bio-oils obtained from pyrolysis at the various temperature is poor, which cannot be directly used as valuable chemicals and fuels. Molecular sieve catalyst (zeolite) have successfully applied in the catalytic conversion of different products after biomass pyrolysis, because of their uniform pore structure, strong acidity, and stable framework. This review emphasizes the traditional and the modification of the zeolite acidic active sites and pore structure and their roles in biomass catalytic pyrolysis. First, we compared the catalytic effects of biomass and its derivatives on traditional zeolites. The results show that ZSM-5 has the best catalytic effect (more high-value products), because of its shape selectivity. Different from the previous articles about the effect of modification on one side, this Review mainly introduces the combination of different methods to modify and optimize acidic sites and pores to improve the catalytic effect of rapid biomass pyrolysis. The zeolite was modified to improve the selectivity and yield of the target product, and a certain optimization effect was achieved. From different methods of mesopore formation to metal doping, the ways of adjusting zeolite catalysts and discussions of changes in acidity after metals being doped into zeolites are reviewed. Simultaneously, a hydrogen source was introduced to deal with the problem of insufficient hydrogen content, to improve the quality of bio-oils. Finally, the advantages and disadvantages of catalytic conversion over the modified zeolite (ZSM-5) are analyzed, and the prospects in this field are also discussed.

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“…[4][5][6][7][8] In particular, the catalytic pyrolysis of cellulose with zeolite is a valuable method for the production of aromatics. 4,9,10 Generally, cellulose can be pyrolyzed to form complex oxygenates, mainly composed of monosaccharides, furans and acids. 4 The oxygenates can be catalytically cracked to generate aromatics through aromatization, deoxidation and isomerization on the acidic sites of zeolite catalysts.…”

Section: Introductionmentioning

confidence: 99%

High value utilization of biomass: selective catalytic transformation of lignocellulose into bio-based 2,5-dimethylphenol

Luo

Yang

et al. 2022

Catal. Sci. Technol.

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Effect of alkali-treated HZSM-5 zeolite on the production of aromatic hydrocarbons from microwave assisted catalytic fast pyrolysis (MACFP) of rice husk

Cited by 45 publications

References 41 publications

A Comprehensive Review on Zeolite Chemistry for Catalytic Conversion of Biomass/Waste into Green Fuels

A Comprehensive Review on Zeolite Chemistry for Catalytic Conversion of Biomass/Waste into Green Fuels

Biomass Catalytic Pyrolysis over Zeolite Catalysts with an Emphasis on Porosity and Acidity: A State-of-the-Art Review

High value utilization of biomass: selective catalytic transformation of lignocellulose into bio-based 2,5-dimethylphenol

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