Carbon mass balance in sugarcane biorefineries in Brazil for evaluating carbon capture and utilization opportunities

Larissa de Souza Noel Simas Barbosa, Eemeli Hytönen, Pasi Vainikka

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Sugarcane biorefineries, despite their contribution to sustainable transportation fuels and mitigation of carbon emissions in the mobility sector, produce a large amount of carbon dioxide in their conversion processes. According to the Paris climate agreement, a carbon neutral energy system has to be launched in the years to come, and in this scenario, greenhouse gases emission free industrial processes and alternative carbon sources will be needed. Therefore, this paper presents the evaluation of carbon mass balance of a typical Brazilian ethanol mill to better understand its potential for energy and carbon yield improvement. Due to the fact that Brazilian sugarcane mills are evolving from first generation to integrated first and second generation plant, four different scenarios were analysed. For a first generation plant without (S-I) and with conversion of straw to electricity (S-II) and for the integrated plant (S-III), results of carbon mass balance showed that the harvested sugarcane carbon was mainly converted into CO2 and in a smaller proportion into ethanol. In the modelled cases S-I to S-III the conversion of sugarcane carbon into CO2 and ethanol ranged from 41% to 53% and 17%-22%, respectively. Because this carbon amount in the CO2 flows provides an interesting platform to both increase the bioenergy produced and the harvested carbon-to-fuels ratio, a fourth scenario (S-IV) that studies the integration of power-to-gas (PtG) technologies into the mill was also considered. PtG can increase the sugarcane fuels energy content from 9.3 kW/ha to 33.6 kW/ha using 1361.3 MWe of electricity, increasing the amount of sugarcane carbon transformed into sugarcane based fuels to 54% and converting CO2 into a high value added product.
Original languageEnglish
Pages (from-to)351-363
Number of pages13
JournalBiomass and Bioenergy
Volume105
DOIs
Publication statusPublished - 2017
MoE publication typeA1 Journal article-refereed

Fingerprint

biorefining
Carbon capture
sugarcane
mass balance
Brazil
Carbon
carbon
carbon dioxide
ethanol
mill
Ethanol
electricity
Electricity
energy
gases
value-added products
bioenergy
carbon emission
Straw
gas

Keywords

  • sugarcane biorefineries
  • CO2 rich-streams
  • carbon mass balance
  • power-to-gas

Cite this

@article{b47df393ed8543079eb504e259d464a6,
title = "Carbon mass balance in sugarcane biorefineries in Brazil for evaluating carbon capture and utilization opportunities",
abstract = "Sugarcane biorefineries, despite their contribution to sustainable transportation fuels and mitigation of carbon emissions in the mobility sector, produce a large amount of carbon dioxide in their conversion processes. According to the Paris climate agreement, a carbon neutral energy system has to be launched in the years to come, and in this scenario, greenhouse gases emission free industrial processes and alternative carbon sources will be needed. Therefore, this paper presents the evaluation of carbon mass balance of a typical Brazilian ethanol mill to better understand its potential for energy and carbon yield improvement. Due to the fact that Brazilian sugarcane mills are evolving from first generation to integrated first and second generation plant, four different scenarios were analysed. For a first generation plant without (S-I) and with conversion of straw to electricity (S-II) and for the integrated plant (S-III), results of carbon mass balance showed that the harvested sugarcane carbon was mainly converted into CO2 and in a smaller proportion into ethanol. In the modelled cases S-I to S-III the conversion of sugarcane carbon into CO2 and ethanol ranged from 41{\%} to 53{\%} and 17{\%}-22{\%}, respectively. Because this carbon amount in the CO2 flows provides an interesting platform to both increase the bioenergy produced and the harvested carbon-to-fuels ratio, a fourth scenario (S-IV) that studies the integration of power-to-gas (PtG) technologies into the mill was also considered. PtG can increase the sugarcane fuels energy content from 9.3 kW/ha to 33.6 kW/ha using 1361.3 MWe of electricity, increasing the amount of sugarcane carbon transformed into sugarcane based fuels to 54{\%} and converting CO2 into a high value added product.",
keywords = "sugarcane biorefineries, CO2 rich-streams, carbon mass balance, power-to-gas",
author = "{de Souza Noel Simas Barbosa}, Larissa and Eemeli Hyt{\"o}nen and Pasi Vainikka",
year = "2017",
doi = "10.1016/j.biombioe.2017.07.015",
language = "English",
volume = "105",
pages = "351--363",
journal = "Biomass and Bioenergy",
issn = "0961-9534",
publisher = "Elsevier",

}

Carbon mass balance in sugarcane biorefineries in Brazil for evaluating carbon capture and utilization opportunities. / de Souza Noel Simas Barbosa, Larissa; Hytönen, Eemeli; Vainikka, Pasi.

In: Biomass and Bioenergy, Vol. 105, 2017, p. 351-363.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Carbon mass balance in sugarcane biorefineries in Brazil for evaluating carbon capture and utilization opportunities

AU - de Souza Noel Simas Barbosa, Larissa

AU - Hytönen, Eemeli

AU - Vainikka, Pasi

PY - 2017

Y1 - 2017

N2 - Sugarcane biorefineries, despite their contribution to sustainable transportation fuels and mitigation of carbon emissions in the mobility sector, produce a large amount of carbon dioxide in their conversion processes. According to the Paris climate agreement, a carbon neutral energy system has to be launched in the years to come, and in this scenario, greenhouse gases emission free industrial processes and alternative carbon sources will be needed. Therefore, this paper presents the evaluation of carbon mass balance of a typical Brazilian ethanol mill to better understand its potential for energy and carbon yield improvement. Due to the fact that Brazilian sugarcane mills are evolving from first generation to integrated first and second generation plant, four different scenarios were analysed. For a first generation plant without (S-I) and with conversion of straw to electricity (S-II) and for the integrated plant (S-III), results of carbon mass balance showed that the harvested sugarcane carbon was mainly converted into CO2 and in a smaller proportion into ethanol. In the modelled cases S-I to S-III the conversion of sugarcane carbon into CO2 and ethanol ranged from 41% to 53% and 17%-22%, respectively. Because this carbon amount in the CO2 flows provides an interesting platform to both increase the bioenergy produced and the harvested carbon-to-fuels ratio, a fourth scenario (S-IV) that studies the integration of power-to-gas (PtG) technologies into the mill was also considered. PtG can increase the sugarcane fuels energy content from 9.3 kW/ha to 33.6 kW/ha using 1361.3 MWe of electricity, increasing the amount of sugarcane carbon transformed into sugarcane based fuels to 54% and converting CO2 into a high value added product.

AB - Sugarcane biorefineries, despite their contribution to sustainable transportation fuels and mitigation of carbon emissions in the mobility sector, produce a large amount of carbon dioxide in their conversion processes. According to the Paris climate agreement, a carbon neutral energy system has to be launched in the years to come, and in this scenario, greenhouse gases emission free industrial processes and alternative carbon sources will be needed. Therefore, this paper presents the evaluation of carbon mass balance of a typical Brazilian ethanol mill to better understand its potential for energy and carbon yield improvement. Due to the fact that Brazilian sugarcane mills are evolving from first generation to integrated first and second generation plant, four different scenarios were analysed. For a first generation plant without (S-I) and with conversion of straw to electricity (S-II) and for the integrated plant (S-III), results of carbon mass balance showed that the harvested sugarcane carbon was mainly converted into CO2 and in a smaller proportion into ethanol. In the modelled cases S-I to S-III the conversion of sugarcane carbon into CO2 and ethanol ranged from 41% to 53% and 17%-22%, respectively. Because this carbon amount in the CO2 flows provides an interesting platform to both increase the bioenergy produced and the harvested carbon-to-fuels ratio, a fourth scenario (S-IV) that studies the integration of power-to-gas (PtG) technologies into the mill was also considered. PtG can increase the sugarcane fuels energy content from 9.3 kW/ha to 33.6 kW/ha using 1361.3 MWe of electricity, increasing the amount of sugarcane carbon transformed into sugarcane based fuels to 54% and converting CO2 into a high value added product.

KW - sugarcane biorefineries

KW - CO2 rich-streams

KW - carbon mass balance

KW - power-to-gas

UR - http://www.scopus.com/inward/record.url?scp=85026776165&partnerID=8YFLogxK

U2 - 10.1016/j.biombioe.2017.07.015

DO - 10.1016/j.biombioe.2017.07.015

M3 - Article

VL - 105

SP - 351

EP - 363

JO - Biomass and Bioenergy

JF - Biomass and Bioenergy

SN - 0961-9534

ER -