Eco-efficiency assessment of farm-scaled biogas plants

Lijó, Lucía; Lorenzo-Toja, Yago; González‐García, Sara; Bacenetti, Jacopo; Negri, Marco; Moreira, Marı́a Teresa

doi:10.1016/j.biortech.2017.01.055

Cited by 71 publications

(37 citation statements)

References 34 publications

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“…The cluster and the year of publication differentiate each group of authors (as the legend shows). According to the final set of 27 articles, the main authors were Bacenetti, (see [5,11,23]), Fiala (see [21,23,24]), González-García (see [11,23,24]) and Negri (see [11,21,23]). Bacenetti's research's main findings rely on the basis that electricity from biogas saves greenhouse gas (GHG) emissions and fossil fuel consumption.…”

Section: Introduction and Discussion Of The Characteristics Found Inmentioning

confidence: 99%

“…According to the final set of 27 articles, the main authors were Bacenetti, (see ), Fiala (see ), González‐García (see ) and Negri (see ). Bacenetti's research's main findings rely on the basis that electricity from biogas saves greenhouse gas (GHG) emissions and fossil fuel consumption.…”

Section: Methodsmentioning

confidence: 99%

“…In that sense, Ref. [11] show that large scale AD plants are more efficient than small scale ones. In the study of Ref.…”

Section: Review Highlights: What High Impact Studies On Lca Of Electrmentioning

confidence: 99%

“…In light of this, a number of LCA studies analyzed the environmental performance of biogas production systems. Some studies addressed LCA to assess electricity generation from biogas from different agricultural sources [2,5,11]. Others have addressed generation of electricity as an alternative to treatment of municipal solid waste (MSW) [12][13][14], or as different strategies for waste management [15,16], or nonetheless, for disposal to landfill [12,13,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Life cycle assessment of electricity from biogas: A systematic literature review

Salvador

Barros

Rosário

et al. 2018

Env Prog and Sustain Energy

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Cleaner energy sources have been one increasing research topic in electricity generation. In that regard, (organic) waste of production processes can be object of anaerobic digestion, generating biogas; it can environmentally benefit by means of waste treatment (and consequent avoided environmental impacts) and electricity production. Additionally, the life cycle assessment (LCA) is the most comprehensive tool for environmental assessment. Therefore, the present study aims to conduct a systematic literature review of high impact research on LCA of electricity from biogas to investigate trends in this body of literature. To that end, the Methodi Ordinatio was applied to the raw portfolio to identify the most relevant, high impact, studies in the area. EndNote and VOSviewer were used, respectively, for reference management and clustering topics and researchers. The results show the main trends in the referred body of literature, possible LCA‐biogas‐electricity nexus, as well as the main researchers conducting studies on the topic and what their results draw on. Yet, it can be seen the main institutions housing high impact studies on the approached themes and their locations. Furthermore, this study gives an overview on the use of LCA of electricity generation from biogas and sheds light on possibilities for future research. Future opportunities for biogas should be drawn in terms of circular economy practices. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13133, 2019

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Section: Introduction and Discussion Of The Characteristics Found Inmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…In that sense, Ref. [11] show that large scale AD plants are more efficient than small scale ones. In the study of Ref.…”

Section: Review Highlights: What High Impact Studies On Lca Of Electrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Life cycle assessment of electricity from biogas: A systematic literature review

Salvador

Barros

Rosário

et al. 2018

Env Prog and Sustain Energy

View full text Add to dashboard Cite

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“…Environmental analyses assess the environmental impacts of the biogas production and utilization chain, the major influencing factors and ways to reduce them (Lijó et al, ; Poeschl, Ward, & Owende, ). The main method is to conduct life‐cycle assessments (LCA), for example, according to (ISO, ) with a strong focus on the impact category of greenhouse gas emissions.…”

Section: Methodsmentioning

confidence: 99%

A plant‐specific model approach to assess effects of repowering measures on existing biogas plants: The case of Baden‐Wuerttemberg

2018

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Up to the latest versions of the German renewable energy act (EEG), there had been a constant growth of new biogas plants (BGPs). After reaching a stagnation in the last years, today the focus has shifted to improving the existing BGPs. Assuming that most plants have not reached the technical end of life, the question arises on how an operation can be realized beyond the initial EEG support period of 20 years. In addition, new legal and economic conditions require the implementation of adjustments, that is, “repowering measures.” Based on a method review, a plant‐specific model approach is presented to assess repowering measures for a wide range of BGPs differing in capacity, substrate mixture and agricultural structures. The techno‐economic model includes different performance indicators like levelized cost of electricity (LCOE) and temporal aspects like technical progress. Using a data set for BGPs in the state of Baden‐Wuerttemberg (Germany), results are illustrated for the different model modules and three repowering scenarios of an extended operation period of ten years. The scenarios regard different options to meet the requirements of the current EEG, namely the flexibilization and restrictions on energy crops, in comparison with a reference case. While in repowering scenarios, the number of plants decreases between 54% and 69% and the overall power capacity changes between −48% and 13% until 2035. The results further show a reduction potential in the specific area demand and GHG emission up to 12% and 24%, respectively. Technical progress, additional revenues and capacity premiums are shown to be an important factor for efficient substrate utilization, low LCOE and thereby the enabling of an extended operation period. The scenario results indicate that the agricultural areas for energy crop cultivation and the amount of manure used in BGPs will be reduced considerably, inducing new chances and challenges in the future.

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Life cycle assessment (LCA) of end‐of‐life dairy products (EoL‐DPs) valorization via anaerobic co‐digestion with agro‐industrial wastes for biogas production

Kopsahelis

Kourmentza

Zafiri

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND:The aim of the present study was to assess the environmental impacts of end-of-life dairy products (EoL-DPs) management via their co-treatment with agro-industrial wastes (AgW) in a centralized biogas facility located in Cyprus using a gate-to-gate life cycle assessment (LCA) approach. Two different scenarios were examined under the framework of this project. In the first one, co-treatment of EoL-DPs with various AgW in a 20:80 (w/w) ratio was evaluated in a one-stage mesophilic anaerobic digestion (AD) process. In the second scenario, the same amount of EoL-DPs were acidified before methanogenesis with AgW in order to improve biogas production. RESULTS: Prior acidification ofEoL-DPs showed a better environmental performance compared with the results obtained upon direct co-digestion in a mesophilic digester, having a total impact of 52.44 Pt against 57.13 Pt respectively. Biogas production upon acidification, and therefore energy yield, was higher, reaching up to 22.88 m 3 CH 4 ton −1 feed (229.25 kWh ton −1 feed), compared with 17.45 m 3 CH 4 ton −1 feed (174.85 kWh ton −1 feed) for the case where no pretreatment was performed. CONCLUSION: The acidification of EoL-DPs enhanced the environmental performance of the process by reducing its impact by 8.2% (in Pt equivalents). The energy consumption of the biogas plant mixing equipment was identified as the process hotspot. However, further analysis of the environmental performance of the proposed process is required by extending the system's boundaries towards a cradle-to-grave approach.

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Eco-efficiency assessment of farm-scaled biogas plants

Cited by 71 publications

References 34 publications

Life cycle assessment of electricity from biogas: A systematic literature review

Life cycle assessment of electricity from biogas: A systematic literature review

A plant‐specific model approach to assess effects of repowering measures on existing biogas plants: The case of Baden‐Wuerttemberg

Life cycle assessment (LCA) of end‐of‐life dairy products (EoL‐DPs) valorization via anaerobic co‐digestion with agro‐industrial wastes for biogas production

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