Production of Phenols by Lignocellulosic Biomass Pyrolysis

Kim, Joo-Sik; Park, Ki-Bum

doi:10.1007/978-981-15-2732-6_11

Cited by 6 publications

(1 citation statement)

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“…Efforts have been made to enhance the quality of bio-oil through the utilization of catalysts in the process of catalytic biomass fast pyrolysis. Zeolites, active carbon, and metallic oxides have been developed as catalysts for this purpose [38]. For instance, Zheng et al investigated the efficacy of bio-based activated carbon (B-AC) catalysts in upgrading biomass pyrolysis vapors to produce methylfurans and phenol [39].…”

Section: Pyrolysis Mechanism Of Ligninmentioning

confidence: 99%

Challenges and Perspectives of the Conversion of Lignin Waste to High-Value Chemicals by Pyrolysis

Tan,

Li,

Chen

et al. 2024

Processes

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The pyrolysis process is a thermochemical conversion reaction that encompasses an intricate array of simultaneous and competitive reactions occurring in oxygen-depleted conditions. The final products of biomass pyrolysis are bio-oil, biochar, and some gases, with their proportions determined by the pyrolysis reaction conditions and technological pathways. Typically, low-temperature slow pyrolysis (reaction temperature below 500 °C) primarily yields biochar, while high-temperature fast pyrolysis (reaction temperature 700–1100 °C) mainly produces combustible gases. In the case of medium-temperature rapid pyrolysis (reaction temperature around 500–650 °C), conducted at very high heating rates and short vapor residence times (usually less than 1 s), the maximum liquid yield can reach up to 85 wt% (on a wet basis) or achieve 70 wt% (on a dry basis), with bio-oil being the predominant product. By employing the pyrolysis technique, valuable utilization of tobacco stem waste enriched with lignin can be achieved, resulting in the production of desired pyrolysis products such as transportation fuels, bio-oil, and ethanol. The present review focuses on catalytic pyrolysis, encompassing catalytic hydropyrolysis and catalytic co-pyrolysis, and meticulously compares the impact of catalyst structure on product distribution. Initially, we provide a comprehensive overview of the recent pyrolysis mechanism of lignin and tobacco waste. Subsequently, an in-depth analysis is presented, elucidating how to effectively design the catalyst structure to facilitate the efficient conversion of lignin through pyrolysis. Lastly, we delve into other innovative pyrolysis methods, including microwave-assisted and solar-assisted pyrolysis.

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Section: Pyrolysis Mechanism Of Ligninmentioning

confidence: 99%