将厌氧消化与牲畜养殖结合以生产生物甲烷的财务评估-对农场经济和供应链的影响

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy Pub Date : 2025-02-13 DOI:10.1016/j.biombioe.2025.107702

Sofia Tisocco , James J. Lenehan , Xinmin Zhan , Paul Crosson

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引用次数: 0

摘要

将厌氧消化（AD）引入农业可以支持碳中和和循环生物经济。然而，利益相关者的经济效益对于全面实施AD至关重要。本研究评估了在肉牛养殖场为AD生产草青贮饲料的财务影响。它还评估了大规模AD工厂共同消化草青贮饲料和牛浆以获得生物甲烷的财务可行性，重点是竞争性草青贮饲料的定价和支持方案。结果表明，要与牛肉生产竞争，青贮草的价格需要在245欧元/t干物质（DM）左右；这要求生物甲烷证书的价格为0.12欧元/千瓦时。按照目前的价格（0.098欧元/千瓦时），AD工厂可以负担164欧元/吨DM的青贮饲料，需要每公顷893欧元的农业补贴来弥补价格差距。AD青贮的甲烷产量以及生物甲烷证书和青贮价格是影响AD工厂20年净现值的关键变量。这项研究强调了政府在培育低碳畜牧业方面的关键作用。

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Financial assessment of integrating anaerobic digestion with cattle farming for biomethane production – Implications for farm economics and the supply chain

Integrating anaerobic digestion (AD) into agriculture can support carbon neutrality and circular bioeconomy. However, economic benefits for stakeholders are crucial for implementing full-scale AD. This study assessed the financial implications of producing grass silage for AD on beef farms. It also assessed the financial viability of full-scale AD plants co-digesting grass silage and cattle slurry for biomethane, focusing on competitive grass silage pricing and support schemes. Results indicate that a grass silage price of €245/t dry matter (DM) is needed for competitiveness with beef production; this requires a biomethane certificate price of €0.12/kWh for the AD plant. At current prices (€0.098/kWh), the AD plant could afford €164/t DM for silage, requiring farm subsidies of €893/ha to cover price gaps. Methane yield of AD silage, along with biomethane certificate and silage prices, are key variables affecting the 20-year net present value of the AD plant. This study underscores the government's critical role in fostering a low-carbon livestock sector.

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来源期刊

Biomass & Bioenergy 工程技术-能源与燃料

CiteScore

11.50

自引率

3.30%

发文量

258

审稿时长

60 days

期刊介绍： Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.