Decentralized biogas plants: status, prospects, and challenges

Rasimphi, T. E.; Tinarwo, D.; Sambo, C.; Mutheiwana, M.A.; Mhlanga, Patrick Masitsela

doi:10.1016/b978-0-12-822810-4.00024-5

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…It is important to mention that farmers must take into account the leaching of biogas production into the aquatic environment in order to generate systems that are sufficiently sustainable in environmental terms, i.e., the use of soils is an important item for the proper management of the by-products of the process [38] [39]. Namely, the size of the small-scale system can generate greater or lesser impact on soil use, however, the issue should focus on the proper management of leachate regardless of whether the plant has low or micro-scale characteristics, i.e., the impact can be the same regardless of the size of the system [39] [7].…”

Section: Large Scale Cogeneration Electrical Power> 300 Kwmentioning

confidence: 99%

“…In Asia, China has about 30 million biodigesters, India 3.8 million, Nepal 0.2 million and Bangladesh about 60,000. In the United States and Canada, there are a large number of centralized installations [7]. In Africa and Latin American countries, the related facilities in the literature are scarce, there are several technologies to improve biogas, but they have disadvantages such as high energy consumption or high initial investment costs [8].…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Introductionmentioning

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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Biomethanation at psychrophilic temperatures

Mamindlapelli,

Arelli,

Anupoju

2024

Biogas to Biomethane

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Pressure Swing Adsorption Configurations for Simultaneous Production of High-Purity Biomethane and Carbon Dioxide from Biogas

Ganesan,

Canevesi,

Grande

2024

Ind. Eng. Chem. Res.

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Stringent legislation in a few countries created the technological need to develop small and medium plants for biogas upgrading with low methane slip. Pressure swing adsorption (PSA) has the potential to reach those targets. In this work, we have simulated several single-stage and dual-stage PSA configurations aiming to produce biomethane with purity over 97.3% while keeping the CO 2 purity over 99%. Limiting the amount of biomethane in the column before the blowdown step is the most important parameter, and it can be accomplished by increasing the number of pressure equalizations or by using a rinse step. Accordingly, five single-stage PSA cycles and three dual-stage PSA cycles with different bed configurations were developed and simulated. Of all the simulated cycles, the single-stage PSA with five columns and the dual-stage PSA with four columns in the first stage and 2 columns in the second stage have rendered better performance by reaching a biomethane purity of 97.3% and a CO 2 purity >99.0%. The single-stage five-column PSA could achieve this with an energy consumption of 937 kJ/kg biomethane , while the dual-stage PSA required 1276.5 kJ/kg biomethane . In addition, a sensitivity analysis is carried out by studying the effect of three process parameters (adsorption time, feed flow rate, and feed gas composition) on the PSA process performance of the single-stage 5-column configuration.

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Decentralized biogas plants: status, prospects, and challenges

Cited by 4 publications

References 26 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

Biomethanation at psychrophilic temperatures

Pressure Swing Adsorption Configurations for Simultaneous Production of High-Purity Biomethane and Carbon Dioxide from Biogas

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