Circular Biogas-Based Economy in a Rural Agricultural Setting

Blades, Luke; Morgan, Kevin T.; Douglas, R. W.; Glover, Stephen; Роса, Маттиа Де; Cromie, Thomas; Smyth, Beatrice

doi:10.1016/j.egypro.2017.07.255

Cited by 51 publications

(22 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the design and operation of biorefineries, biofuels and nutrient recovery technologies have been a prime consideration that is utilized for recovering a range of N, P or K rich products of environmental agricultural significance. A biorefinery may be considered as an integrated facility that employs extraction/conversion methods for the production of variety of platform chemicals, fuels, and energy that is somewhat parallel to a petroleum refinery [17,18]. Sustainability is the key criteria promoting bio-refineries which utilizes conversion of low-value biomass (specifically agro-wastes material from agriculture) into a portfolio of higher-value products to fulfill future product demands and must also be considered as an integral part of environmental management approaches [19,20] (Fig.…”

Section: Biorefinery Approachmentioning

confidence: 99%

See 1 more Smart Citation

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Vaish

Srivastava

Singh

et al. 2019

Environmental Engineering Research

View full text Add to dashboard Cite

Agricultural sector has inescapably drawn attention towards itself due to growing concern over population explosion, changing climate and depletion of resources. Advancements in technology have caused rapid boost in farm productivity and hence huge production of agro-wastes. There have been massive deteriorating impacts of agro-wastes on existing environmental conditions, creating wide scale environmental pollution as well as biodiversity loss. Since, agro-wastes have huge potential in the form of energy and nutrient recovery (ENR), amalgamations of different technologies would promote sustainability. ENR not only adjoins an added profitable product but also facilitates to close environmental nutrient cycles. This provides a substitute to existing unsustainable approaches that are energy demanding and reliant on nonrenewable sources of energy. This review underpins why ENR from agro-waste must be key concern in production of array of higher value products.

show abstract

Section: Biorefinery Approachmentioning

confidence: 99%

“…Biorefinery feedstocks usually contain biomass having an excessive amount of carbon viz., lignocellulosic biomass obtained from agro-wastes that comprises mainly of carbon-rich polymers such as cellulose, hemicellulose, and lignin. It also contains nutrients like N, P, and K recovered from any type of agro-wastes [17] (Table 1).…”

Section: Biorefinery Approachmentioning

confidence: 99%

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Vaish

Srivastava

Singh

et al. 2019

Environmental Engineering Research

View full text Add to dashboard Cite

show abstract

“…In particular, the production of biogas from anaerobic digestion has become widespread in Europe. Many European countries are encouraging the development of anaerobic digestion systems since they produce clean energy starting from organic waste [8] and promote the diffusion of a circular economy [9]. In addition, anaerobic digestion can also provide sanitation services by using sewage and municipal organic waste as an input [10].…”

Section: Introductionmentioning

confidence: 99%

Biogas from Anaerobic Digestion: Power Generation or Biomethane Production?

et al. 2020

View full text Add to dashboard Cite

Biogas is a fuel obtained from organic waste fermentation and can be an interesting solution for producing electric energy, heat and fuel. Recently, many European countries have incentivized the production of biomethane to be injected into natural gas grids or compressed and used as biofuel in vehicles. The introduction of an upgrading unit into an existing anaerobic digestion plant to convert biogas to biomethane may have a strong impact on the overall energy balance of the systems. The amount of biomethane produced may be optimized from several points of view (i.e., energy, environmental and economic). In this paper, the mass and energy fluxes of an anaerobic digestion plant were analyzed as a function of the biogas percentage sent to the upgrading system and the amount of biomethane produced. A numerical model of an anaerobic digestion plant was developed by considering an existing case study. The mass and energy balance of the digesters, cogeneration unit, upgrading system and auxiliary boiler were estimated when the amount of produced biomethane was varied. An internal combustion engine was adopted as the cogeneration unit and a CO 2 absorption system was assumed for biogas upgrading. Results demonstrated that the energy balance of the plant is strictly dependent on the biomethane production and that an excess of biomethane production makes the plant totally dependent on external energy sources. As for the environmental impact, an optimal level of biomethane production exists that minimizes the emissions of equivalent CO 2 . However, high biomethane subsides can encourage plant managers to increase biomethane production and thus reduce CO 2 savings.

show abstract

“…about 10,000 km 2 of land in NI are devoted to agricultural activities). Only in Northern Ireland, the exploitation of the organic resources available (estimated to be between 207 and 500 thousands of tons, including municipal, commercial and industrial wastes) might bring to a potential coverage between 5% and 23% of the total electric energy demand [30,31]. Thanks to this positive background (and to the incentives put in place to support the AD industry), the number of AD plants has grown exponentially over the last few years, as shown in Fig.…”

Section: Local Market Contextmentioning

confidence: 99%

Technical and economic optimization of subcritical, wet expansion and transcritical Organic Rankine Cycle (ORC) systems coupled with a biogas power plant

Dumont

Dickes

Роса

et al. 2018

Energy Conversion and Management

Self Cite

View full text Add to dashboard Cite

A B S T R A C TGenerally, > 40% of the useful energy (cooling engine and exhaust gases) are wasted by a biogas power plant through the cooling radiator and the exhaust gases. An efficient way to convert this waste heat into work and eventually electricity is the use of an organic Rankine cycle (ORC) power system. Over the last few years, different architectures have been widely investigated (subcritical, wet expansion and trans-critical). Despite the promising performances, realistic economic and technical constraints, also related to the application, are required for a meaningful comparison between ORC technologies and architectures. Starting from the limited literature available, the aim of the present paper is to provide a methodology to compare sub-critical, transcritical and wet expansion cycles and different types of expanders (both volumetric and turbomachinery) from both technical and economic point of view, which represent one of the main novel aspects of the present work. In particular, the paper focuses on the thermo-economic optimization of an ORC waste heat recovery unit for a 500 kWe biogas power plant located in a detailed regional market, which was not investigated yet. By means of a genetic algorithm, the adopted methodology optimizes a given economic criteria (Pay-Back Period, Net Present Value, Profitability Index and Internal Rate of Return) while respecting technical constraints (expander limitations) and thermodynamic constraints (positive pinch points in heat exchangers, etc.).The results show that optimal ORC solutions with a potential of energy savings up to 600 MWh a year and with a pay-back period lower than 3 years are achievable in the regional market analysed.

show abstract

Circular Biogas-Based Economy in a Rural Agricultural Setting

Cited by 51 publications

References 5 publications

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Biogas from Anaerobic Digestion: Power Generation or Biomethane Production?

Technical and economic optimization of subcritical, wet expansion and transcritical Organic Rankine Cycle (ORC) systems coupled with a biogas power plant

Contact Info

Product

Resources

About