Second-generation bioethanol from industrial wood waste of South American species

Vallejos, María Evangelina; Kruyeniski, Julia; Área, María Cristina

doi:10.18331/brj2017.4.3.4

Cited by 46 publications

(29 citation statements)

References 61 publications

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“…These wastes can be used in nearby locations because they are already concentrated and do not need to be collected. The projection of the biomass waste associated with current forest activities during the 2017–2027 period in Argentina is around 2 100 000 metric tons (wood waste available: 5 000 000), mainly from pine and eucalyptus …”

Section: Introductionmentioning

confidence: 99%

“…The projection of the biomass waste associated with current forest activities during the 2017-2027 period in Argentina is around 2 100 000 metric tons (wood waste available: 5 000 000), mainly from pine and eucalyptus. 5,7 Pine sawdust is an important lignocellulosic waste from the primary industrialization of wood in Argentina, so its valorization using the biorefinery platform could add new value chains to its forest industry and this could serve as a model for other countries. The global forest industry is focused on the development of technologies for waste reuse or valorization.…”

Section: Introductionmentioning

confidence: 99%

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Techno‐economic assessment of carboxylic acids, furfural, and pellet production in a pine sawdust biorefinery

Clauser

Gutiérrez

Área

et al. 2018

Biofuels Bioprod Bioref

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Pine sawdust is an important lignocellulosic waste from the primary industrialization of wood, and its valorization using the biorefinery concept could add new value chains to the forest industry. Compared with large‐scale biorefineries, small‐scale ones involve lower capital and logistics costs, lower risk, and can increase the use of labor in rural areas. A scheme was proposed for the use of the hemicelluloses obtained from the spent liquor of a steam explosion pretreatment of pine sawdust. With the proposed scheme, levulinic acid (LA), formic acid (FA), acetic acid and furfural are obtained from the liquid fraction while pellets are produced from the solid fraction. This pine sawdust biorefinery allows about 747 kg of pellets, 57 kg of LA, 23 kg of FA, 18 kg of acetic acid, and 22 kg of furfural per 1000 kg of dry sawdust to be obtained. The energy used for LA production is one of the main production costs. When 95% of the residual solid is used to generate steam, there is an improvement in the internal rate of return (IRR). The heat integration allows a reduction of 10% in the steam consumption for LA, increasing the capacity for pellet production. The results obtained are therefore essential when seeking alternatives for pine sawdust biorefineries, focusing on the improvement of the production processes, satisfaction of energy requirements, and the reduction of the recovery costs. Three alternatives for the valorization of pine sawdust were analyzed and the best of them obtained an IRR of about 17%. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Techno‐economic assessment of carboxylic acids, furfural, and pellet production in a pine sawdust biorefinery

Clauser

Gutiérrez

Área

et al. 2018

Biofuels Bioprod Bioref

Self Cite

View full text Add to dashboard Cite

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“…Vallejos et al . analyzed the potential of second generation ethanol from Eucalyptus and pines residues of the South American forest industry.…”

Section: Introductionmentioning

confidence: 99%

“…For example, cassava has been proposed as potential feedstock in Malaysia and is shown to provide significant benefits in terms of global warming potential [4]. Vallejos et al [5] analyzed the potential of second generation ethanol from Eucalyptus and pines residues of the South American forest industry.…”

Section: Introductionmentioning

confidence: 99%

Assessment of bagasse and trash utilization for ethanol production: A case study in india

Vikash

Mandade

Shastri

2018

Env Prog and Sustain Energy

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Retrofitting existing sugar mills to produce ethanol from sugarcane bagasse provides a significant opportunity in India to meet the nation's liquid transportation fuel demands. Utilization of sugarcane trash in the sugar mill can enhance the economic feasibility of this approach. This work developed an optimization model to determine the optimal distribution of bagasse and trash for ethanol production while simultaneously ensuring energy sufficiency of the sugar mill. A superstructure of sugar mill integrated with a second generation ethanol facility along with trash utilization and lignin valorization processes is developed. The model determines the break‐even selling price (BESP) of ethanol by optimizing the distribution of bagasse and trash subjected to the mass and energy balance constraints and cost functions. The application of the model for a sugar mill with a throughput of 150 Mg (Mega grams)/h of sugarcane showed the ethanol BESP to be Rs. 63/L when trash and lignin was available along with bagasse for heat production. Trash retention on farm increased the BESP to Rs. 117/L, indicating the economic value of trash utilization. However, on‐farm trash retention led to about 82% savings in GHG emissions due to reduced fertilizer use. Lignin valorization was found to be economically infeasible. © 2018 American Institute of Chemical Engineers Environ Prog, 37: 1901–1907, 2018

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“…O Eucalipto é plantado em mais de 90 países com mais de 18 milhões de hectares, sendo a árvore utilizada para a extração de madeira mais difundida do mundo(Arena et al, 2016; Suganya e Senthil Kumar, 2018). O plantio desta árvore têm se destacado devido ao rápido crescimento, alta produtividade, densidade de madeira relativamente alta, propriedades químicas apropriadas, baixo teor de umidade, facilidade de colheita e ampla adaptabilidade às características edafoclimáticas(Rockwood et al, 2008;Vallejos et al, 2017;Zhou et al, 2017), sendo plantados atualmente mais de cinco milhões de hectares de eucalipto no Brasil, com uma produção anual de madeira de 156,3 milhões de m 3 (www.cib.org.br). O gênero compreende cerca de 70% da produção florestal sustentável do país, sendo Eucalyptus grandis a espécie mais cultivada no Brasil, graças ao seu potencial produtivo e às características de sua madeira(Martins et al 2007).…”

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Bioveg – A Protocol to Learn and Teach Statistics in R Using Vegetation Data

Diniz¹,

Thiele²

2020

Aplicações Da Linguagem R Em Análises De Vegetação

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Second-generation bioethanol from industrial wood waste of South American species

Cited by 46 publications

References 61 publications

Techno‐economic assessment of carboxylic acids, furfural, and pellet production in a pine sawdust biorefinery

Techno‐economic assessment of carboxylic acids, furfural, and pellet production in a pine sawdust biorefinery

Assessment of bagasse and trash utilization for ethanol production: A case study in india

Bioveg – A Protocol to Learn and Teach Statistics in R Using Vegetation Data

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