Economical concerns of lignin in the energy sector

Sharma, Archita; Kaur, Pritam; Singh, Gursharan; Arya, Shailendra Kumar

doi:10.1016/j.clet.2021.100258

Cited by 15 publications

(2 citation statements)

References 194 publications

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“…The second-generation platforms have a high net energy balance (e.g., a net of 600 GJ per ha per year for lignocellulosic biomass into ethanol), an index to describe the economic and environmental sustainability of bio-energy platform. 290 The specific sustainability criteria and economic cost should be addressed to identify whether lignin-based chemical production provides genuine economic and environmental benefits compared to their traditional rivals 291 (economic analysis is presented in section 7). Life cycle assessment (LCA) is a strong tool to evaluate the environmental effect of a product from resource development to end-of-life.…”

Section: Challenge and Perspectivementioning

confidence: 99%

Bio-based platform chemicals synthesized from lignin biorefinery

Hu,

Zhan,

Zhao

et al. 2023

Green Chem.

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Section: Challenge and Perspectivementioning

confidence: 99%

Bio-based platform chemicals synthesized from lignin biorefinery

Hu,

Zhan,

Zhao

et al. 2023

Green Chem.

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“…Pyrolysis technology has been considered as an effective method for lignin conversion to well-fined chemicals due to its low cost, easy operation, high efficiency for energy extraction, and fuel production [ 111 – 114 ]. As the only renewable alternative of non-renewable fossil fuels for producing aromatic compounds, lignin can be thermally decomposed via pyrolysis technology to obtain low-molecular-weight phenolic compounds (important intermediates in biochemical platform) and to generate aromatic hydrocarbons (advanced fuel additives with sustainable energy density) [ 115 ]. On the other hand, biorefinery economic can benefit from high-quality recovery of lignin by lowering the manufacturing price of biochemicals and biofuels [ 116 ].…”

Section: Lignocellulosic Biomass Pyrolysismentioning

confidence: 99%

A review on lignin pyrolysis: pyrolytic behavior, mechanism, and relevant upgrading for improving process efficiency

2022

Biotechnol Biofuels

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Lignin is a promising alternative to traditional fossil resources for producing biofuels due to its aromaticity and renewability. Pyrolysis is an efficient technology to convert lignin to valuable chemicals, which is beneficial for improving lignin valorization. In this review, pyrolytic behaviors of various lignin were included, as well as the pyrolytic mechanism consisting of initial, primary, and charring stages were also introduced. Several parallel reactions, such as demethoxylation, demethylation, decarboxylation, and decarbonylation of lignin side chains to form light gases, major lignin structure decomposition to generate phenolic compounds, and polymerization of active lignin intermediates to yield char, can be observed through the whole pyrolysis process. Several parameters, such as pyrolytic temperature, time, lignin type, and functional groups (hydroxyl, methoxy), were also investigated to figure out their effects on lignin pyrolysis. On the other hand, zeolite-driven lignin catalytic pyrolysis and lignin co-pyrolysis with other hydrogen-rich co-feedings were also introduced for improving process efficiency to produce more aromatic hydrocarbons (AHs). During the pyrolysis process, phenolic compounds and/or AHs can be produced, showing promising applications in biochemical intermediates and biofuel additives. Finally, some challenges and future perspectives for lignin pyrolysis have been discussed.

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