The lignin pyrolysis composition and pyrolysis products of palm kernel shell, wheat straw, and pine sawdust

Chang, Guozhang; Huang, Yanqin; Xie, Jianjun; Yang, Haitian; Liu, Huacai; Yin, Xiuli; Wu, Chao

doi:10.1016/j.enconman.2016.07.038

Cited by 99 publications

(42 citation statements)

References 39 publications

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“…This temperature range was found to be perfect for the thermal degradation range of lignin which is 200-600°C [20]. Apart from HTL route, other biomass conversion techniques found suitable for lignin degradation, including pyrolysis [21,22], hydrolysis [23], and gasification [24] have been reported.…”

Section: Lignin Degradation Technologiesmentioning

confidence: 92%

“…Phenol, catechol and guaiacol. [24] Kraft lignin Kraft lignin and deionized water were reassigned into the reactor. The system was vented with nitrogen three times.…”

Section: Kraft Ligninmentioning

confidence: 99%

“…Like HTL of lignin, the products distribution during pyrolysis of lignin also depends on the composition of the feedstock. Chang et al [24], conducted the Py-GC/MS degradation of palm kernel shell. Accordingly, the primary composition of the feedstock indicated the predominance of p-hydroxyphenyl structural units, resulting in high phenolic products, often its degradation.…”

Section: Pyrolysis Of Ligninmentioning

confidence: 99%

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Lignin Hydrothermal Liquefaction into Bifunctional Chemicals: A Concise Review

Alhassan¹,

Hornung²,

Bugaje³

2020

Biorefinery Concepts, Energy and Products

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Lignin, the second largest biomass after cellulose is underutilized. Yet, it remains the only natural source of aromatic, and phenolic compounds. It is imperative to, amidst the expanding interest on biomass conversion, to accord the necessary attention towards lignin degradation into value added chemicals. Specifically, its phenyl, guaiacyl, and syringyl derivatives. Understanding lignin degradation chemistry, goes a long way in its selective valorization into fuels and chemicals via thermochemical routes such as hydrothermal liquefaction (HTL). Therefore, development of technologies targeting value addition of products and by-products from lignin, would undoubtedly give way to emerging markets in the industry. Previous review papers focused on the general HTL of biomass, food waste, algae, and their model compounds. However, review on HTL of lignin is scarcely available. This paper presents the detailed literature analyses of the current trend in lignin degradation via HTL. Effect of HTL conditions including temperature, heating rate and catalyst has been reviewed. In-depth discussion on use of ionic liquids as catalyst for HTL of lignin has also been compiled. Other lignin degradation techniques such as pyrolysis and hydrolysis were also discussed. This is aimed at bringing together an up-to-date information on lignin degradation into selected chemical intermediates.

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Section: Lignin Degradation Technologiesmentioning

confidence: 92%

“…Phenol, catechol and guaiacol. [24] Kraft lignin Kraft lignin and deionized water were reassigned into the reactor. The system was vented with nitrogen three times.…”

Section: Kraft Ligninmentioning

confidence: 99%

Section: Pyrolysis Of Ligninmentioning

confidence: 99%

See 1 more Smart Citation

Lignin Hydrothermal Liquefaction into Bifunctional Chemicals: A Concise Review

Alhassan¹,

Hornung²,

Bugaje³

2020

Biorefinery Concepts, Energy and Products

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“…These types of compounds are derived from guaiacyl-type compounds of lignin that had ether bond such as β-O-4. It was reported that the β -O-4 had lower thermal stability and decomposed easily at low temperatures (Xu and Ferdosian, 2017;Chang et al, 2016a). However, at high temperatures, the production of phenol, alkyl phenols, alkylmethoxy phenols, carboxylic acids and levoglucosan were high.…”

Section: Pyrolysis-gasmentioning

confidence: 99%

“…Previous studies have examined the bio-oil composition obtained from Py-GC-MS of PKS. Chang et al (2016a) focused their research in lignin conversion and reported that the phenol content of PKS bio-oil obtained from pyrolysis at 500 o C was about 13.49%. Furthermore, they investigated the Py-GC/MS of PKS at higher temperature i.e.…”

Section: Introductionmentioning

confidence: 99%

Identification of Compounds Released During Pyrolysis of Palm Kernel Shell (PKS) Using Pyrolysis-GC/MS

Mansur

Simanungkalit

2018

Reaktor

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Pyrolysis is one of thermochemical conversion to convert biomass into bio-oil. The higher energy content in bio-oil suggests its potential as a raw material in the production of energy, bio-fuels, and other chemicals. Pyrolysis of PKS and the chemicals released were studied using pyrolysis–gas chromatography/mass spectrometry (Py-GC/MS) at 400-600°C. Prior to pyrolysis, thermogravimetry experiments were carried out to monitor the degradation temperature of hemicellulose, cellulose, and lignin in the PKS. Degradation of hemicellulose occurred within a temperature range of 150-330°C, whereas the cellulose was degraded in temperatures range between 330-400°C. Degradation of lignin took place within a broad range of temperatures, which reached maximum at temperatures range of 200-500°C. Based on the Py-GC/MS results, pyrolysis of PKS at 400°C produced bio-oil that can be used as biofuel due to its high aromatic compounds but low carboxylic acids contents. Keywords: bio-oil; chemical; palm kernel shell; Py-GC/MS; thermogravimetry .

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Lignin Depolymerization Technologies

2023

Depolymerization of Lignin to Produce Value Added Chemicals

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The lignin pyrolysis composition and pyrolysis products of palm kernel shell, wheat straw, and pine sawdust

Cited by 99 publications

References 39 publications

Lignin Hydrothermal Liquefaction into Bifunctional Chemicals: A Concise Review

Lignin Hydrothermal Liquefaction into Bifunctional Chemicals: A Concise Review

Identification of Compounds Released During Pyrolysis of Palm Kernel Shell (PKS) Using Pyrolysis-GC/MS

Lignin Depolymerization Technologies

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