Assessing process effectiveness with specific environmental and economic impact of heat, power &amp; chemicals (HPC) option as future perspective in biogas

Fedeli, Matteo; Manenti, Flavio

doi:10.1016/j.clce.2022.100016

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…The economics of small-scale systems comprise lower investment costs with respect to centralized systems [40], however, the size of the plant directly influences the initial cost of investment, maintenance and operation [41], that is to say, the micro-scale system will have a lower investment value than low-scale plants [42]. This economic factor is evaluated taking into account that the use of raw material for these two types of systems is free, and comes, for example, from animal manure, water, treated sludge, solid waste, agricultural waste, among others [43].…”

Section: Large Scale Cogeneration Electrical Power> 300 Kwmentioning

confidence: 99%

Evaluation of the anaerobic digestion process for low and micro-scale biogas production: a review

Castillo-Leon,

Tarazona-Romero,

Gamarra

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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A theoretical analysis of biogas production technologies classified in two subgroups; low and micro scale, was carried out using the methodology of formal concept analysis (FCA) together with the VOSviewer and Conception Explorer tools for information processing, a series of attributes that each subsystem must comply with in terms of the sustainability of each technology were analyzed. The information selected for the development of the analysis required a quality study, based on the percentile of the journals in which the manuscript was published. The search for information was carried out in web sites such as: Scopus, Web Of Science, Dimensions and Lens among others. In total, 105 sources of academic information were analyzed, selecting 56 articles and 18 book chapters for the development of the work. In conclusion, it can be affirmed that low-scale biogas plants present more favorable characteristics than micro-scale plants; however, both technologies have a high potential for application worldwide in isolated or rural areas, supplying electric or thermal energy to less favored communities. Finally, it is important to point out that the methodology developed has proven to be a relevant tool for the classification of information and serves as a first step to group and relate search concepts by means of a deterministic set of attributes.

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Section: Large Scale Cogeneration Electrical Power> 300 Kwmentioning

confidence: 99%

Evaluation of the anaerobic digestion process for low and micro-scale biogas production: a review

Castillo-Leon,

Tarazona-Romero,

Gamarra

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Methanol is mainly synthesized from natural gas and coal; the reaction is exothermic and favoured by high pressures and low temperatures [1]. The worldwide production of methanol was 100 Mt/y in 2020 with a forecast demand of more than 150 Mt/y in 2040 [2]. DME (H3C-O-CH3), the simplest ether, is not a greenhouse gas, it is colourless, highly flammable at ambient temperature and pressure conditions; it has properties like those of liquefied petroleum gas (LPG).…”

Section: Figure 1 Bigsquid Block Flow Diagrammentioning

confidence: 99%

A versatile modular plant for converting biogas into advanced biofuels

Negri

Fedeli

Barbieri

et al. 2022

Preprint

Self Cite

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The patented technology is a novel, portable, non-invasive, and flexible technical solution for converting biogas into valuable chemical compounds, such as bio-methanol and bio-dimethyl ether (bio-DME). It consists of compact modules, connected to each other through a flange-valve-flange system, to be installed downstream of an existing traditional biogas plant.The two main sections of the module are those of reforming and synthesis: in the first, the biogas is converted into bio-syngas (H2/CO/CO2), while in the second the bio-syngas is transformed into advanced biofuels such as bio-methanol and bio-DME. Parts of the synthesis module can always be changed with small investments to switch the final products, according to local market needs and price volatilities. Downstream in the synthesis section, it is possible to add a module for separating and purifying the chemical products.The technology has been validated at the 0.15 MWe industrial scale.

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“…Biogas is a mixture of methane (CH4) and carbon dioxide (CO2). Ammonia, water, and hydrogen sulfide are the main impurities of biogas at a concentration lower than 1~2% (Fedeli, 2022).…”

Section: Introductionmentioning

confidence: 99%

Development of Cavity Matrix Combustor for Biogas Application

Chun

An²

2022

ASEAN J. Chem. Eng.

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The use of conventional fossil fuels has limitations in energy resources and environmental problems such as greenhouse gas, air pollution, etc. Biogas has sustainable and renewable characteristics that can be used as an alternative energy source to alleviate these problems. In this study, we proposed a novel cavity matrix combustor that directly enables the combustion of what is produced in small and medium-sized biogas facilities without separation or purification. We also identified combustion characteristics for changes in air ratio, gas feed rate, biogas ratio, and exhaust gas recirculation rate and proposed optimal operating conditions based on this. The performance test result showed that the cavity matrix combustor is excellent for biogas combustion. The optimal operating conditions for the combustor are: the biogas ratio is 60% of CH4 and 40% of CO2, the air ratio is 1.1, the gas feed rate is 30L/min, and the exhaust gas recirculation rate is 100%. At this time, the combustion efficiency was 87%, and the unburned components were CO, UHCs, which are 0.01% and 0.05%, respectively, and NOx was 1ppm.

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Assessing process effectiveness with specific environmental and economic impact of heat, power & chemicals (HPC) option as future perspective in biogas

Cited by 5 publications

References 28 publications

Evaluation of the anaerobic digestion process for low and micro-scale biogas production: a review

Evaluation of the anaerobic digestion process for low and micro-scale biogas production: a review

A versatile modular plant for converting biogas into advanced biofuels

Development of Cavity Matrix Combustor for Biogas Application

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