Past, present and future of thermal gasification of biomass and waste

Hrbek, Jitka

doi:10.32933/actainnovations.35.1

Cited by 13 publications

(12 citation statements)

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“…There is a growing demand for solutions providing integration and flexibility in the European energy system. These solutions should create flexibility between intermittent electricity and sustainable fuel production and, at the same time, enable production under economically competitive conditions from alternative carbon sources [1][2][3][4]. To accomplish this objective, it is essential to develop flexible, selective, robust and less energy-demanding integrated pre-treatments with the simultaneous separation of contaminants, as well as optimization of pre-treatment technologies compatible with the use of multiple feedstocks.…”

Section: Introductionmentioning

confidence: 99%

Imidazole Processing of Wheat Straw and Eucalyptus Residues—Comparison of Pre-Treatment Conditions and Their Influence on Enzymatic Hydrolysis

Pereira¹,

Bernardo²,

Roseiro³

et al. 2021

Molecules

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Biomass pre-treatment is a key step in achieving the economic competitiveness of biomass conversion. In the present work, an imidazole pre-treatment process was performed and evaluated using wheat straw and eucalyptus residues as model feedstocks for agriculture and forest-origin biomasses, respectively. Results showed that imidazole is an efficient pre-treatment agent; however, better results were obtained for wheat straw due to the recalcitrant behavior of eucalyptus residues. The temperature had a stronger effect than time on wheat straw pre-treatment but at 160 °C and 4 h, similar results were obtained for cellulose and hemicellulose content from both biomasses (ca. 54% and 24%, respectively). Lignin content in the pre-treated solid was higher for eucalyptus residues (16% vs. 4%), as expected. Enzymatic hydrolysis, applied to both biomasses after different pre-treatments, revealed that results improved with increasing temperature/time for wheat straw. However, these conditions had no influence on the results for eucalyptus residues, with very low glucan to glucose enzymatic hydrolysis yield (93% for wheat straw vs. 40% for eucalyptus residues). Imidazole can therefore be considered as a suitable solvent for herbaceous biomass pre-treatment.

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Section: Introductionmentioning

confidence: 99%

Imidazole Processing of Wheat Straw and Eucalyptus Residues—Comparison of Pre-Treatment Conditions and Their Influence on Enzymatic Hydrolysis

Pereira¹,

Bernardo²,

Roseiro³

et al. 2021

Molecules

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“…Furthermore, output gas generated by gasification is rich in carbon and is well suited as a PtX pathway with hydrogenation and further conversion into liquid electrofuels such as methanol, DME or jet fuel. However, thermal gasification is still at the demonstration level [71,72]. Demonstration of the coupling of biomass gasification and electrolytic H 2 has not yet been realised but has been modelled for methanol production [73e75] with high potential for flexible operation and carbon conversion.…”

Section: Thermal Gasificationmentioning

confidence: 99%

The Role of Sustainable Bioenergy in a Fully Decarbonised Society

et al. 2021

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“…Gasification and pyrolysis are two methods for converting biomass that are similar in fuel generation with high efficiency, low oxygen consumption, and low pollution emission. Gasification is carried out in the presence of a certain percentage of an oxidizing agent, and its main product is syngas and some biochar (Hrbek, 2020). The main problem of gasification is tar production.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive review on how ionic liquids enhance the pyrolysis of cellulose, lignin, and lignocellulose toward a circular economy

Eqbalpour

Andooz

Kowsari

et al. 2023

WIREs Energy & Environment

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The sustainable use of plant biomass (PB) to produce new valuable compounds helps alleviate the world's excessive reliance on fossil fuels. Among the different processes available, pyrolysis has drawn significant attention for its efficiency in converting PB (including lignin, hemicellulose, and cellulose) into solid, liquid, and gas products by thermal degradation. Moreover, the participation of ionic liquids (ILs) in the pyrolysis process can further facilitate this process, improve the quality of pyrolysis products, and enhance the operational parameters. This review article presents an in‐depth examination of how ILs enhance the pyrolysis of lignin, cellulose, and lignocellulose toward sustainability and circular economy (CE). The structural chemistry of the components of PB, namely cellulose, lignin, and hemicellulose, is first discussed. Furthermore, the role of ILs in the pyrolysis of cellulose, lignin, and lignocellulose is thoroughly investigated. These roles include pre‐treating agent before pyrolysis, catalyst after or during pyrolysis, template during pyrolysis, and extractant after pyrolysis. In the following, the sustainability of PB pyrolysis with the participation of ILs is examined from three aspects: environmental, social, and economical. Finally, the PB pyrolysis was investigated from the CE aspect. There is no doubt that the participation of ILs in the pyrolysis process positively affects the operating conditions and product quality, so the whole process is only one step away from complete sustainability. This article is categorized under: Sustainable Development > Sustainable Development Goals Sustainable Energy > Bioenergy Climate and Environment > Circular Economy

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Past, present and future of thermal gasification of biomass and waste

Cited by 13 publications

References 1 publication

Imidazole Processing of Wheat Straw and Eucalyptus Residues—Comparison of Pre-Treatment Conditions and Their Influence on Enzymatic Hydrolysis

Imidazole Processing of Wheat Straw and Eucalyptus Residues—Comparison of Pre-Treatment Conditions and Their Influence on Enzymatic Hydrolysis

The Role of Sustainable Bioenergy in a Fully Decarbonised Society

A comprehensive review on how ionic liquids enhance the pyrolysis of cellulose, lignin, and lignocellulose toward a circular economy

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