The review of power generation from integrated biomass gasification and solid oxide fuel cells: current status and future directions

Abouemara, Khaled; Shahbaz, Muhammad; Mckay, Gordon; Al-Ansari, Tareq

doi:10.1016/j.fuel.2023.130511

Cited by 36 publications

(4 citation statements)

References 158 publications

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“…Given its immediate technological availability [1][2][3][4][5][6][7][8][9], biomass energy has been playing a key practical role for decades already, and was conceptually supported by the traditional assumption of its carbon neutrality: under sustainable conditions, carbon dioxide emitted during combustion was held to be equal to its absorption during plant growth [10][11][12][13][14][15][16][17]. However, in order to clarify conditions of carbon (C) neutrality quantitatively and more reliably [18][19][20][21][22][23][24][25][26][27][28][29][30][31], it became necessary to model the annual natural C cycle globally and to consider its changes as a result of steadily growing large-scale biomass strategies [32][33][34][35][36][37][38][39][40]. Because a recent publication [41] found much interest in readership, this article dwells still deeper into the dynamism of C flows and their alterations after biomass fuel extraction from the natural C cycle.…”

Section: Motivationmentioning

confidence: 99%

How to Compute Whether Biomass Fuels Are Carbon Neutral

Ahamer

2024

Preprint

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Based on recent interest and on the importance of the ongoing climate change catastrophe, this article provides the basics of global carbon cycle modelling as required for the assessment of the degree of carbon neutrality of biomass energy, and its underlying dynamics. It is aimed at clari-fying the question “Are biomass fuels carbon neutral?”. The "Combined Energy and Biosphere Model" (CEBM) computes annual carbon flows including growth and decay of plants on 2.52.5° grid elements of the continents’ surface and offers detailed results on the changes of after implementation of large-scale biomass energy strategies world-wide. The main (and possibly unexpected) effect is the long-term depletion of the soil organic compartment after extraction of biomass fuels. When comparing CEBM model runs using (i) biomass energy sources and (ii) carbon-free energy sources (such as solar or wind), it becomes quantitatively clear already on the theoretical level (i.e., even without taking into account effi-ciency losses) that biomass is only “half as carbon neutral” as ideally assumed, to express a rule of thumb – mainly because of soil carbon depletion. Still, biomass energy will play an important role when fighting global warming, even if efforts to lower energy demand are preferable as a fundamental strategy.

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Section: Motivationmentioning

confidence: 99%

How to Compute Whether Biomass Fuels Are Carbon Neutral

Ahamer

2024

Preprint

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“…Most of the reviewed papers considered the production of electricity by syngas-fed Internal Combustion Engines (ICEs) or gas engines. The integration of biomass gasification with fuel cells, especially solid oxide fuel cells (SOFCs), is presented in [55] as a promising although still experimental technological option for electricity production at a small scale because of its high efficiency and fuel flexibility. However, the development stage has not reached commercialization yet; therefore, investment costs are still very high, and some technical barriers are still being addressed by research.…”

Section: Economic Assessment Of Small-scale Biomass Gasification For ...mentioning

confidence: 99%

Residual Biomass Gasification for Small-Scale Decentralized Electricity Production: Business Models for Lower Societal Costs

Desclaux,

Pereira

2024

Energies

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Biomass gasification, a promising sustainable technology for decentralized electricity production, has the potential to displace fossil fuels while valorizing locally produced waste. Previous studies indicate that its technical and financial viabilities vary among projects, and few projects have been successfully developed, despite the sustainability benefits. This study identified and characterized the factors that influence the economic and environmental performances of such projects using a novel, hybrid method, with qualitative analysis using the Business Model Canvas and quantitative life-cycle costs (LCCs) considering the financial and external costs. The financial LCCs and external electricity generation costs were evaluated for business models in agro-industrial factories using proprietary residual biomasses and for those in isolated grids using local agricultural waste. The business models used for biomass gasification projects affect their LCCs and externalities more than factors such as their investment costs and energy efficiencies. The relationship between the business models, the financial performances of the projects, and their impacts on society are highlighted, showing that although projects using proprietary biomass waste have lower financial costs, off-grid projects generate more positive externalities, resulting in lower costs for society. These results indicate that policy support focused on appropriate business models may contribute to optimizing the use of financial incentives to foster investment in new sustainable technologies, contributing to the energy transition.

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“…From among the available energy-related strategies, and given its immediate technological availability [4][5][6][7][8][9][10][11][12], biomass energy has been playing a key practical role for decades already, and was conceptually supported by the traditional assumption of its carbon neutrality: under sustainable conditions, carbon dioxide emitted during combustion was held to be equal to its absorption during plant growth [13][14][15][16][17][18][19][20]. However, in order to clarify conditions of carbon (C) neutrality quantitatively and more reliably [21][22][23][24][25][26][27][28][29][30][31][32][33][34], it became necessary to model the annual natural C cycle globally and to consider its changes as a result of steadily growing large-scale biomass strategies [35][36][37][38][39][40][41][42][43]. Because a recent publication [44] found much interest in readership [45][46]…”

Section: Motivationmentioning

confidence: 99%

How to Compute Whether Biomass Fuels Are Carbon Neutral

Ahamer

2024

View full text Add to dashboard Cite

Based on recent interest and on the importance of the ongoing climate change catastrophe, this article provides the basics of global carbon cycle modelling as required for the assessment of the degree of carbon neutrality of biomass energy, and its underlying dynamics. It is aimed at clarifying the question “Are biomass fuels carbon neutral?”. The “Combined Energy and Biosphere Model” (CEBM) computes annual carbon flows including growth and decay of plants on 2.5 × 2.5° grid elements of the continents’ surface and offers detailed results on the changes of after implementation of large-scale biomass energy strategies worldwide. The main (and possibly unexpected) effect is the long-term depletion of the soil organic compartment after extraction of biomass fuels. When comparing CEBM model runs using (i) biomass energy sources and (ii) carbon-free energy sources (such as solar or wind), it becomes quantitatively clear already on the theoretical level (i.e., even without taking into account efficiency losses) that biomass is only “half as carbon neutral” as ideally assumed, to express a rule of thumb—mainly because of soil carbon depletion. Still, biomass energy will play an important role when fighting global warming, even if efforts to lower energy demand are preferable as a fundamental strategy.

show abstract

The review of power generation from integrated biomass gasification and solid oxide fuel cells: current status and future directions

Cited by 36 publications

References 158 publications

How to Compute Whether Biomass Fuels Are Carbon Neutral

How to Compute Whether Biomass Fuels Are Carbon Neutral

Residual Biomass Gasification for Small-Scale Decentralized Electricity Production: Business Models for Lower Societal Costs

How to Compute Whether Biomass Fuels Are Carbon Neutral

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