Closing the balance – on the role of integrating biorefineries in the future energy system

Granacher, Julia; Castro-Amoedo, Rafael; Schnidrig, Jonas; Maréchal, François

doi:10.1039/d3se00473b

Cited by 3 publications

(1 citation statement)

References 35 publications

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“…Other opportunities for biomass valorization in pulp mills, which have attracted attention in recent literature include the integration of various biorefinery processes with the mill. Results by Granacher et al (2022) show that pulp-mill integrated biorefineries is an economically viable way to achieve better resource utilization [see also Granacher et al (2023) for a general overview of pulp mill biorefinery options]. More specifically, Geleynse et al (2020) investigated the integration of lignocellulosic ethanol fermentation for alcohol-to-jet fuel production in a pulp mill.…”

Section: Introductionmentioning

confidence: 99%

Integration of carbon capture in a pulp mill—effect of strategic development towards better biomass resource utilization

Skoglund,

Fu,

Harvey

et al. 2023

Front. Therm. Eng.

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The pulp and paper industry has an important role in the industrial transition towards net zero or negative emissions, given its renewable biomass-based feedstock and energy supply. In particular, pulp and paper mills have large existing sources of biogenic CO2, with a high potential to contribute to carbon dioxide removal through carbon capture and storage (CCS). To effectively navigate anticipated changes in feedstock and energy markets, there is a need for a better understanding of how different technology pathways for the pulp and paper industry interact with one another, for instance, how enhanced valorization of biomass side streams may affect the potential for carbon capture. This paper aims to investigate the effect of combining carbon capture with lignin extraction in a chemical pulp mill. Pinch analysis is used to study how the targets for heat recovery, fuel usage and electricity generation, are affected by different mill and capture configurations. Based on these results, the effect on carbon flows is evaluated. The results show that when carbon capture technology is implemented and fuel use is minimized at the case-study mill, there is still enough heat available from the recovery boilers to supply the process needs without requiring usage of a utility boiler. However, when carbon capture is combined with lignin extraction, the heat production of the recovery boilers is no longer sufficient to cover the process demands, and additional heat from a utility boiler is required. However, this case implies that some of the carbon leaves the mill embedded in the extracted lignin product, which can be expected to have a higher value than captured carbon dioxide. When back-pressure electricity production was maximized for the different mill configurations, a very high fuel-to-electricity efficiency could be achieved, but since the CO2 emissions from the utility boiler were not assumed to be captured, this would lead to more carbon being emitted compared to the capture scenarios with minimized fuel use.

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Section: Introductionmentioning

confidence: 99%

Integration of carbon capture in a pulp mill—effect of strategic development towards better biomass resource utilization

Skoglund,

Fu,

Harvey

et al. 2023

Front. Therm. Eng.

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Sustainable Porous Heterogeneous Catalysts for the Conversion of Biomass into Renewable Energy Products

Mondal,

Ruidas,

Chongdar

et al. 2024

ACS Sustainable Resour. Manage.

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Bioenergy possesses the potential to alleviate our energy demands while maintaining renewability and carbon neutrality. The utilization of abundant biomass sources for bioenergy production presents a significant challenge. When considering chemical processes for conversion, the development of effective catalysts becomes imperative as they play a pivotal role in biomass-to-bioenergy/biofuel conversion. In such scenarios, heterogeneous nanoporous materials emerge as crucial components for facilitating catalytic conversion. This perspective provides a comprehensive summary of biomass, including its classification, valorization processes and applications along with recent advancements in various catalytic systems utilized for transforming biomass and its intermediates into renewable energy products. We delved into the diverse classes of heterogeneous catalysts, including metal-based, metal oxide-based, silica based, hybrid catalysts, and organic polymers, highlighting their unique structural and compositional features that influence catalytic activity and selectivity. Furthermore, we discussed the importance of pore structure, surface area, and active site accessibility in enhancing catalytic performance. By examining the advantages and limitations of different catalysts, we provide insights into the rational design and optimization of porous heterogeneous catalysts for efficient and sustainable bioenergy conversion. This perspective serves as a valuable resource for researchers and engineers in the field of renewable energy, seeking to develop innovative catalyst materials for biomass valorization.

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Going beyond quantification: Applying a multidimensional qualitative analysis approach to support decision making for sustainable biorefinery deployment – a case study

Knoebl,

Fazeni-Fraisl,

Lindorfer

et al. 2024

Preprint

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The rollout of bio-based technologies is key to achieving sustainability goals in the bioeconomy and renewable energy sectors. Evaluating the contribution of the biorefinery value chain to sustainability goals requires the evaluation of environmental, economic, and social aspects. Most current studies use quantitative metrics focused on environmental and economic assessments, which can lead to information loss. This study adds to the current literature by presenting a comprehensive qualitative sustainability analysis for decision support, exemplified by an industrial cellulosic ethanol biorefinery value chain established in rural Romania. The study involved stakeholder, qualitative indicator (PESTEL), and SWOT analyses to derive recommendations for further biorefinery deployment and decision support. These three methods were merged with the socio- and multi-criteria model for reducing barrier analysis, a multidimensional approach that demonstrates a comprehensible way to process and interpret qualitative information. The insights gained facilitate informed decision-making, resource allocation, and policy formulation for successful biorefinery deployment. Understanding the multifaceted implications of the cellulosic ethanol biorefinery value chain facilitates the pursuit of a socially, environmentally responsible, and economically viable pathway. This paper concludes with recommendations for the maintenance and further development of lignocellulosic biorefineries in rural Romania.

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Closing the balance – on the role of integrating biorefineries in the future energy system

Abstract: Exploiting synergies between industrial biorefineries and residential districts allows to reduce emissions and fossil fuel dependency at reasonable economic compromises.

Cited by 3 publications

References 35 publications

Integration of carbon capture in a pulp mill—effect of strategic development towards better biomass resource utilization

Integration of carbon capture in a pulp mill—effect of strategic development towards better biomass resource utilization

Sustainable Porous Heterogeneous Catalysts for the Conversion of Biomass into Renewable Energy Products

Going beyond quantification: Applying a multidimensional qualitative analysis approach to support decision making for sustainable biorefinery deployment – a case study

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