Techno-economic analysis of biogas upgrading via amine scrubber, carbon capture and ex-situ methanation

Vo, Truc T.Q.; Wall, David; Ring, Denis; Rajendran, Karthik

doi:10.1016/j.apenergy.2017.12.099

Cited by 162 publications

(56 citation statements)

References 38 publications

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“…The bio-P2M trickle bed reactor needs energy for operation, estimated to range from 0.1 to 1.0 kWh Nm −3 green gas produced. [8][9][10]52,53 The gas that is formed contains water vapour and is at atmospheric pressure, so it needs to be dried and compressed before injection into the gas grid. Compression is considered part of the "Bio-P2M" transformation block (Figure 1).…”

Section: Methodsmentioning

confidence: 99%

“…Two technological routes for bio‐P2M are generally considered: in situ bio‐P2M, in which hydrogen is added directly to an existing biogas installation; and ex situ bio‐P2M, in which the biogas—or only the CO 2 —is combined with hydrogen in a second reactor. This second reactor allows better optimising the conditions for the methanogenic archaea, is easier to combine with CO 2 from non‐biogas sources and can yield green gas or almost pure methane . This way, the ex situ bio‐P2M technology gives more flexibility and is the technology considered here.…”

Section: Introductionmentioning

confidence: 99%

“…To date, the combination of techno‐economic aspects and environmental impacts of bio‐P2M technology has not yet been investigated in detail. One paper has addressed the economic feasibility of bio‐P2M as an upgrading step in the production of green gas: notably, the electricity price was found to determine feasibility. Hydrogen costs were not included in these analyses, while future developments in hydrogen technologies are likely to impact the overall viability of bio‐P2M considerably .…”

Section: Introductionmentioning

confidence: 99%

“…This second reactor allows better optimising the conditions for the methanogenic archaea, is easier to combine with CO 2 from non-biogas sources and can yield green gas or almost pure methane. 7,[10][11][12] This way, the ex situ bio-P2M technology gives more flexibility and is the technology considered here. In a renewable or green scenario, the hydrogen required for the bio-P2M reaction should come from renewable energy sources such as wind or solar energy.…”

Section: Introductionmentioning

confidence: 99%

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Farm‐scale bio‐power‐to‐methane: Comparative analyses of economic and environmental feasibility

et al. 2019

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Summary Power‐to‐gas technologies are considered to be part of the future energy system, but their viability and applicability need to be assessed. Therefore, models for the viability of farm‐scale bio‐power‐to‐methane supply chains to produce green gas were analysed in terms of levelised cost of energy, energy efficiency and saving of greenhouse gas emission. In bio‐power‐to‐methane, hydrogen from electrolysis driven by surplus renewable electricity and carbon dioxide from biogas are converted to methane by microbes in an ex situ trickle‐bed reactor. Such bio‐methanation could replace the current upgrading of biogas to green gas with membrane technology. Four scenarios were compared: a reference scenario without bio‐methanation (A), bio‐methanation (B), bio‐methanation combined with membrane upgrading (C) and the latter with use of renewable energy only (all‐green; D). The reference scenario (A) has the lowest costs for green gas production, but the bio‐methanation scenarios (B‐D) have higher energy efficiencies and environmental benefits. The higher costs of the bio‐methanation scenarios are largely due to electrolysis, whereas the environmental benefits are due to the use of renewable electricity. Only the all‐green scenario (D) meets the 2026 EU goal of 80% reduction of greenhouse gas emissions, but it would require a CO2 price of 200 € t−1 to achieve the levelised cost of energy of 65 €ct Nm−3 of the reference scenario. Inclusion of the intermittency of renewable energy in the scenarios substantially increases the costs. Further greening of the bio‐methanation supply chain and how intermittency is best taken into account need further investigation.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Farm‐scale bio‐power‐to‐methane: Comparative analyses of economic and environmental feasibility

et al. 2019

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“…While the biogas generated in AD is often only considered for electricity generation or even sometimes being directly flared, the value and scope of biogas applications can be largely upgraded by eliminating carbon dioxide and other contaminant gases to provide high-quality biomethane as a substitute for natural gas in various industrial and domestic uses [99][100][101][102][103]. Biogas from AD cannot be only considered alongside as the same arrays with solar or wind power as sustainable energy.…”

Section: Anaerobic Digestionmentioning

confidence: 99%

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

Tsui

Wong

2019

Waste Dispos. Sustain. Energy

143

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Municipal solid waste (MSW) management has emerged as probably the most pressing issue many governments nowadays are facing. Traditionally, Waste-to-Energy(WtE) is mostly associated with incineration, but now, with the emergence of the bioeconomy, it embraces a broader definition comprising any processing technique that can generate electricity/heat or produce a waste-derived fuel. Under the ambit of the circular economy many nations are looking for, additional effort must be made to be sure of acquiring the most updated information and paving a sustainable path for managing MSW in such a frame. In this regard, we have undertaken a critical review of various technologies, with their updated progress, involved in the exploitation of MSW as a renewable resource, along with the critical advantages and limitations on energy and material cycling for sustainable MSW management. Incineration, the most widely used method, is nowadays difficult to further apply due to its dubious reputation and social opposition. Meanwhile, to address the organic fraction of MSW which currently is mostly unrecycled and causes disposal issues, the biological approach presents an attractive option. The new emphasis of bioeconomy leads us to understand how environmental biotechnologies should be better connected/integrated for more sustainable MSW management. This article is concluded with advances of future prospects, which can serve as a timely reminder to encourage competent authorities/researchers to work towards further improvement of the present MSW management system.

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Power to Gas Energy Storage System for Energy Self-sufficient Smart Cities Development

Dawood

Shafiullah

Anda

2018

Smart Innovation, Systems and Technologies

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Techno-economic analysis of biogas upgrading via amine scrubber, carbon capture and ex-situ methanation

Cited by 162 publications

References 38 publications

Farm‐scale bio‐power‐to‐methane: Comparative analyses of economic and environmental feasibility

Farm‐scale bio‐power‐to‐methane: Comparative analyses of economic and environmental feasibility

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

Power to Gas Energy Storage System for Energy Self-sufficient Smart Cities Development

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