Simulation and economic evaluation of process alternatives for biogas production and purification from sugarcane vinasse

Moreira, Luiza; Borges, P.O.; Cavalcante, Raquel M.; Young, André F.

doi:10.1016/j.rser.2022.112532

Cited by 14 publications

(10 citation statements)

References 13 publications

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“…Currently, it is possible to find several works in the literature where the sugarcane ethanol production process was evaluated, eventually in conjunction with the production of sugar and electricity. , In this section, for the sake of simplicity, only the main references used for the development of this work are described, but there are many other works recently published in international indexed journals that could be consulted regarding the application of 1G and 2G ethanol processes and the evaluation of other biomass alternatives, process integration, − and co-production, − besides the role of Brazil in the world ethanol market. , …”

Section: Literature Reviewmentioning

confidence: 99%

“…It is normally used in fertigation of the crop field, but has limited application because it is also a noxious effluent . Vinasse can also be an additional source of income for the mill …”

Section: Literature Reviewmentioning

confidence: 99%

“…24 Vinasse can also be an additional source of income for the mill. 16 The bagasse from the sugarcane cleaning and grinding steps can have two destinations: it can be sent to the secondgeneration treatment process�described in the next sec-tions�or be used to produce steam and electricity, which are not only consumed in the plant but also exported to the grid, being an important source of income to the plant. 25 The so-called cogeneration unit uses bagasse (and straw� not considered in this work) as fuel in a thermodynamic steam cycle.…”

Section: ■ Literature Reviewmentioning

confidence: 99%

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Process Simulation Applied to the Prediction of the Impact of Corn Incorporation as Raw Material on the Brazilian Ethanol Market

da Luz,

Melhorim,

Cavalcante

et al. 2023

ACS Sustainable Chem. Eng.

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Sugarcane is currently the primary raw material for ethanol production in Brazil. However, in recent years, corn has become an exportable commodity in the country, and many projects have emerged for ethanol production from this feedstock. The assessment of the market demand for ethanol in Brazil in the coming years indicates a deficit in domestic production. Thus, strategic planning is essential to guide future industry investments and ensures competitiveness and development in this segment. In this work, process simulation is used to compare sugarcane and corn ethanol production technologies in terms of their material and energy demands, and to measure the potential impact of the corn entrance in the current Brazilian market. It was shown that ethanol from corn can have a cost 5% lower than 1G ethanol and 17% lower than 1G2G ethanol from sugarcane. If 50% of the additional demand for ethanol is supplied from corn, a potential reduction of up to 5% can be expected in the biofuel average price, depending on the corn price. One corn ethanol plant could supply almost the same amount of biofuel than two or three sugarcane ethanol plants, and adaption of existing mills to flex processing plants is indicated as a viable alternative.

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Section: Literature Reviewmentioning

confidence: 99%

“…It is normally used in fertigation of the crop field, but has limited application because it is also a noxious effluent . Vinasse can also be an additional source of income for the mill …”

Section: Literature Reviewmentioning

confidence: 99%

Section: ■ Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Process Simulation Applied to the Prediction of the Impact of Corn Incorporation as Raw Material on the Brazilian Ethanol Market

da Luz,

Melhorim,

Cavalcante

et al. 2023

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

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“…Vinasse is used in some countries as a fertilizer in sugarcane plantations, but the economical transportation of vinasses is restricted to short distances from sugarcane mills. The average radius of economically viable vinasse application in natura is 11 km from the sugarcane mill, which can be increased up to 29 km if vinasse concentration steps are carried out [65]. The direct use of this material as a fertilizer can also be restricted in some types of soils due to the soils' salinity [49].…”

Section: Possibility Of Integrating Biogas Production From Vinasses W...mentioning

confidence: 99%

“…In some places, vinasse is discharged in water bodies [49], which may require the depollution of this effluent before its release into nature [64]. Thus, biogas production is the most developed and economically viable method currently available for vinasse treatment [49,64,65]. The integrated use of vinasses and SCBA appears promising for better management of these residues.…”

Section: Possibility Of Integrating Biogas Production From Vinasses W...mentioning

confidence: 99%

Adding Value to Sugarcane Bagasse Ash: Potential Integration of Biogas Scrubbing with Vinasse Anaerobic Digestion

Garcia-Perez,

Ortiz-Ulloa,

Jara-Cobos

et al. 2023

Sustainability

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One of the byproducts of sugarcane bagasse combustion in sugarcane mills is sugarcane bagasse ash (SCBA), which contains up to ~40 mass% of organic matter. Currently, SCBA is partially used as a soil fertilizer. However, SCBA’s poor content of minerals, which are required by soils, restricts its use in soils, resulting in the disposal of large amounts of SCBA in landfills. Alternatively, SCBA has shown promise for some environmental applications such as wastewater treatment, but its use in gas cleaning deserves further study. The objective of this work was to assess the use of as-received SCBA to remove hydrogen sulfide (H2S) from biogas, thus, to add value to the ash. The experimental procedure consisted of passing biogas containing H2S through a column with SCBA and monitoring the H2S content inline by employing a gas chromatograph until the concentration of H2S, measured after the column, was ~10% of the original concentration. The breakthrough time of the SCBA adsorption curve was ~75% the breakthrough time observed with activated carbon, showing that SCBA could be a cheap alternative to commercial materials that are currently used for biogas scrubbing. This result could positively impact ethanol sugarcane mills that need to clean biogas produced from vinasses, as part of a strategy to integrate biogas production and cleaning operations using low-value residues (i.e., vinasses and ash). SCBA’s capacity for removing H2S from biogas results from the presence of K-compounds (e.g., K2SiO3 and K2Si2O5) on the ash’s surface and its relatively high porosity. Additionally, S-enriched SCBA (due to H2S retention) can expectedly be more beneficial to soils than directly adding the ash since S is an essential nutrient for the growth of plants.

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Recent advances in biogas production using Agro-Industrial Waste: A comprehensive review outlook of Techno-Economic analysis

Devi

Manikandan²,

Oviyapriya³

et al. 2022

Bioresource Technology

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Simulation and economic evaluation of process alternatives for biogas production and purification from sugarcane vinasse

Cited by 14 publications

References 13 publications

Process Simulation Applied to the Prediction of the Impact of Corn Incorporation as Raw Material on the Brazilian Ethanol Market

Process Simulation Applied to the Prediction of the Impact of Corn Incorporation as Raw Material on the Brazilian Ethanol Market

Adding Value to Sugarcane Bagasse Ash: Potential Integration of Biogas Scrubbing with Vinasse Anaerobic Digestion

Recent advances in biogas production using Agro-Industrial Waste: A comprehensive review outlook of Techno-Economic analysis

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