Biogas between renewable energy and bio-economy policies—opportunities and constraints resulting from a dual role

Pfau, Swinda F.; Hagens, J.E.; Dankbaar, Ben

doi:10.1186/s13705-017-0120-5

Cited by 33 publications

(14 citation statements)

References 38 publications

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“…Biogas plays a major role as a renewable energy source in the bio-economy domain according to the European Union policy [9,10]. Biogas is produced by anaerobic digestion of biomasses coming from different sources such as sewage, sludge, landfill, or industry [11].…”

Section: Introductionmentioning

confidence: 99%

Rh/CeO2 Thin Catalytic Layer Deposition on Alumina Foams: Catalytic Performance and Controlling Regimes in Biogas Reforming Processes

et al. 2018

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: The application of ceramic foams as structured catalyst supports is clearly expanding due to faster mass/heat transfer and higher contact efficiency than honeycomb monoliths and, mainly, packed beds. In this paper, alumina open-cell foams (OCFs) with different pore density (20, 30 and 40 ppi) were coated with Rh/CeO2 catalyst via a two steps synthesis method involving: (i) the solution combustion synthesis (SCS) to in-situ deposit the CeO2 carrier and (ii) the wet impregnation (WI) of the Rh active phase. The catalytic coatings were characterized in terms of morphology and adhesion properties by SEM/EDX analysis and ultrasounds test. Permeability and form coefficient were derived from pressure drop data. Catalytic performance was evaluated towards biogas Steam Reforming (SR) and Oxy-Steam Reforming (OSR) processes at atmospheric pressure by varying temperature (800–900 °C) and space velocity (35,000–140,000 NmL·g−1·h−1). Characteristics time analysis and dimensionless numbers were calculated to identify the controlling regime. Stability tests were performed for both SR and OSR over 200 h of time-on-stream (TOS) through consecutive start-up and shut-down cycles. As a result, homogenous, thin and high-resistance catalytic layers were in situ deposited on foam struts. All structured catalysts showed high activity, following the order 20 ppi < 30 ppi ≈ 40 ppi. External interphase (gas-solid) and external diffusion can be improved by reducing the pore diameter of the OCF structures. Anderson criterion revealed the absence of internal heat transfer resistances, as well as Damköhler and Weisz-Prater numbers excluded any internal mass transfer controlling regime, mainly due to thin coating thickness provided by the SCS method. Good stability was observed over 200 h of TOS for both SR and OSR processes.

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Section: Introductionmentioning

confidence: 99%

Rh/CeO2 Thin Catalytic Layer Deposition on Alumina Foams: Catalytic Performance and Controlling Regimes in Biogas Reforming Processes

et al. 2018

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“…Biogas technologies were seen not only as a form of bioenergy but as a wider bioeconomy solution capable of delivering multiple benefits advancing the general policy objectives of rural development. This framing of biogas as an energy technology completely in line with the principles of circular economy is likely to serve as a strong legitimating factor in the future energy policy debate [57,58]. A similar shift in the biogas discussion from energy production to manure treatment has happened in other countries such as Denmark and the Netherlands [59,60].…”

Section: Discussionmentioning

confidence: 93%

“…The need for considerable investment subsidies was taken as a self-evident starting point by the news coverage. Debate over the poor economic performance of small-scale biogas production has been a common theme in other industrialised countries as well [14,17,57,61]. In the Finnish case, the news reporting that highlighted economic risks and the reliance on public subsidies was likely to deter potential early adopters even when concrete examples and learning opportunities based on the activities of forerunners were available.…”

Section: Discussionmentioning

confidence: 99%

Energy transition looming behind the headlines? Newspaper coverage of biogas production in Finland

et al. 2018

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Background: Media coverage can play an important part in energy transitions. It creates awareness of landscapelevel megatrends affecting energy systems. It influences and is influenced by public and policy agendas on a regime level. On a niche level, it can spread or screen out information and motivate or discourage actors to adopt new technologies and practices. However, relatively few studies have specifically addressed the role of media in energy transitions. Newspaper coverage of biogas is studied here as a case of media framing of a potential renewable energy solution.Methods: This article examines the long-term development of newspaper coverage of biogas in Finland. The aim of the quantitative content analysis is to draw an overall picture of the main phases of biogas coverage of a widely read newspaper focusing on agriculture and forestry, actors using discursive power in this coverage and key framings of the discussion. The results are discussed from the perspective of energy transition studies. In particular, future expectations created by the media are explored. Results: The results show a lack of newspaper coverage on biogas in the early 2000s, followed by a rapid increase and stabilisation of the volume of newspaper coverage. Biogas was most often mentioned as a secondary topic of broader discussions related to renewable energy. The core discussion focusing on biogas was characterised by very positive framings of biogas as a preferable energy solution fully compatible with the principle of circular economy. The news stories often had a strong future orientation, and examples of enthusiastic forerunners were frequently presented. However, the coverage also emphasised the poor economic profitability of biogas technologies and a need for considerable public subsidies that are inherently unpredictable.Conclusions: The future of niche-level energy technologies such as biogas can be strongly shaped by information flows, public perceptions and expectations created in part by media coverage. The analysed newspaper coverage in Finland was ambivalent from the perspective of energy transition. On the one hand, biogas production was represented as a preferable, environmentally friendly niche-level energy technology that should be encouraged. On the other hand, by emphasising the economic unviability of biogas technologies, the analysed newspaper coverage did not promote the adoption of biogas.

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“…La biomasa residual resuelve algunos de los problemas asociados al uso de cultivos energéticos exclusivos que generan conflictos entorno a la competencia y al cambio del uso de la tierra, la deforestación y la presión sobre cuerpos de agua [40]. Además, aporta soluciones al debate sobre el incremento del uso de la biomasa para energías renovables o el tránsito hacia una bioeconomía, basada en la diversificación de nuevos productos [41].…”

Section: Biomasa Residual En La Generación De Energía Y Otros Subprodunclassified

“…El biogás es considerado una forma versátil de energía puesto que se puede almacenar o distribuir a través de las redes de gas convencionales o exclusivas. Tal versatilidad le permite amortiguar las fluctuaciones de otras fuentes de energía como la fotovoltaica y la eólica [41], [46].…”

Section: Potencial Del Uso Del Biogás En La Generación De Energíaunclassified

Biomasa residual pecuaria: revisión sobre la digestión anaerobia como método de producción de energía y otros subproductos

Ortiz¹,

Londoño²,

Londoño³

2019

revuin

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ResumenEl biogás producido por la digestión anaerobia de residuos pecuarios es una solución para la sustitución de la biomasa tradicional usada en iluminación y calor. Su uso presenta ventajas como la mejora en la productividad de las fincas, la reducción del impacto ambiental y el rompimiento de la dependencia a los combustibles fósiles y agroquímicos. Sin embargo, aún se tiene poca difusión en las zonas rurales de Colombia, principalmente por el desconocimiento de las potencialidades y los beneficios. Por tal motivo, la presente revisión propone brindar una perspectiva de la digestión anaerobia desde los aspectos técnicos más relevantes, la importancia del sustrato y los tipos de biodigestores de bajo costo más comunes. Se concluye que es necesario mejorar las técnicas para hacerlas más asequibles y planear programas de financiación que permitan la expansión plena de la tecnología a pequeña y mediana escala. Palabras clave: biogás; digestato; digestión anaerobia. AbstractThe biogas produced by the anaerobic digestion of livestock waste is a solution for the replacement of traditional biomass used in lighting and heat. Its use offers advantages such as: the improvement in the productivity of the farms, reduction of the environmental impact and breaking the dependence on fossil fuels and agrochemicals. However, there is still little diffusion of it in rural areas of Colombia, mainly due to ignorance of its potential and benefits. For this reason, this review provides a perspective of anaerobic digestion from the most relevant technical aspects, the importance of the substrate and the most common types of low-cost biodigesters. It is concluded that it is necessary to improve the techniques to make them more affordable and to plan financing programs that allow the full expansion of this technology to small and medium scale.

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Biogas between renewable energy and bio-economy policies—opportunities and constraints resulting from a dual role

Cited by 33 publications

References 38 publications

Rh/CeO2 Thin Catalytic Layer Deposition on Alumina Foams: Catalytic Performance and Controlling Regimes in Biogas Reforming Processes

Rh/CeO2 Thin Catalytic Layer Deposition on Alumina Foams: Catalytic Performance and Controlling Regimes in Biogas Reforming Processes

Energy transition looming behind the headlines? Newspaper coverage of biogas production in Finland

Biomasa residual pecuaria: revisión sobre la digestión anaerobia como método de producción de energía y otros subproductos

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