Main technologiesavailable for biogas purification

Cremonez, Paulo André; Feiden, Armin; Rossi, Eduardo de; Nadaleti, Willian Cezár; Antonelli, Jhonatas

doi:10.5935/paet.v7.n1.13

Cited by 4 publications

(6 citation statements)

References 19 publications

(20 reference statements)

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“…A toxic concentration of H 2 S remaining in biogas is considered to be higher than 5 cm 3 /m 3 [12,111]. Moreover, it should be noted that H 2 S is a problematic biogas compound since it is characterized by strong and peculiar odor [34,57,[126][127][128]. Noteworthily, the H 2 S concentration equal to 200-300 ppm may lead to respiratory arrest [32].…”

Section: H 2 Smentioning

confidence: 99%

Biogas Upgrading Using a Single-Membrane System: A Review

Tomczak,

Gryta,

Daniluk

et al. 2024

Membranes

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In recent years, the use of biogas as a natural gas substitute has gained great attention. Typically, in addition to methane (CH4), biogas contains carbon dioxide (CO2), as well as small amounts of impurities, e.g., hydrogen sulfide (H2S), nitrogen (N2), oxygen (O2) and volatile organic compounds (VOCs). One of the latest trends in biogas purification is the application of membrane processes. However, literature reports are ambiguous regarding the specific requirement for biogas pretreatment prior to its upgrading using membranes. Therefore, the main aim of the present study was to comprehensively examine and discuss the most recent achievements in the use of single-membrane separation units for biogas upgrading. Performing a literature review allowed to indicate that, in recent years, considerable progress has been made on the use of polymeric membranes for this purpose. For instance, it has been documented that the application of thin-film composite (TFC) membranes with a swollen polyamide (PA) layer ensures the successful upgrading of raw biogas and eliminates the need for its pretreatment. The importance of the performed literature review is the inference drawn that biogas enrichment performed in a single step allows to obtain upgraded biogas that could be employed for household uses. Nevertheless, this solution may not be sufficient for obtaining high-purity gas at high recovery efficiency. Hence, in order to obtain biogas that could be used for applications designed for natural gas, a membrane cascade may be required. Moreover, it has been documented that a significant number of experimental studies have been focused on the upgrading of synthetic biogas; meanwhile, the data on the raw biogas are very limited. In addition, it has been noted that, although ceramic membranes demonstrate several advantages, experimental studies on their applications in single-membrane systems have been neglected. Summarizing the literature data, it can be concluded that, in order to thoroughly evaluate the presented issue, the long-term experimental studies on the upgrading of raw biogas with the use of polymeric and ceramic membranes in pilot-scale systems are required. The presented literature review has practical implications as it would be beneficial in supporting the development of membrane processes used for biogas upgrading.

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Section: H 2 Smentioning

confidence: 99%

Biogas Upgrading Using a Single-Membrane System: A Review

Tomczak,

Gryta,

Daniluk

et al. 2024

Membranes

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“…The use of a membrane absorption device can remove CO2 when the pressure difference was 50 ~ 500 kPa [11]. The liquefaction process is highly recommended for the separation of CO2 due to its high selective capacity [4]. Cryogenic separation, on the other hand, has as its main advantage the high purity of BG reaching the order of 99% CH4 and also the fact that it has high processing capacity, having as a disadvantage the high cost of implementation in relation to other processes [3].…”

Section: Concentration (Cc)mentioning

confidence: 99%

“…The main methods employed in cleaning and purifying BG are to remove the compounds of H2S, CO2 and water (H2O). There is evidence that there are differences in effectiveness between the methods with regard to increasing the calorific value of BG and the level of corrosion [4].…”

Section: Introductionmentioning

confidence: 99%

Purification of Biogas: A Quantitative Assessment of Processes

Silva¹

2020

IJETAE

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Introduction: Renewable energy sources are a very valuable asset and, in this context, biogas is a clean and ecological fuel. The different biogas purification processes have their advantages and disadvantages. Each process used depends on the end use of the biogas. The better the purification process, the greater the heating power of biogas. Objective: To gather and describe in a systematic, objective and practical way the main strategies used to determine the biogas purification process and propose the possibility of new strategies. Methods: A bibliographic search was carried out with a search for the descriptor "biogas purification" in English. Studies with titles not directly related to the research topic, older studies and studies that report repeated strategies were excluded. Results: The standard strategy for choosing the biogas purification process is its final use, the operational costs of the purification process and the type and quantities of contaminants found. Conclusion: The strategy to determine the biogas purification process is standard in the researched literature. The measurement and evaluation parameters are different in the studies carried out, which justifies, therefore, the difference in the final products and suggested objectives. More significant criteria pointing to the development of new biogas purification processes are not considered. This study showed the importance of conducting more research on the topic in order to provide the development of more efficient biogas purification processes, increasing its calorific value and, consequently, its energetic power. Biogas, Purification of Biogas, Biomass, Methane, Hydrogen sulphide.

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“…Foram avaliadas algumas alternativas para a etapa e remoção das impurezas contidas no biogás. As tecnologias incluídas no estudo foram: Adição de ar no biodigestor, adsorção com zeolita ou carvão ativado (CREMONEZ et. al, 2014), absorção com MEA/DEA ou ferro solido umedecido (CREMONEZ et al, 2014;KOCH, 2014), adsorção PSA, permeação de membranas (CREMONEZ et al, 2014;PROBIOGÁS, 2010) e remoção química (PROBIOGÁS, 2010).…”

Section: Escolha De Tratamento Para Purificação Do Biogásunclassified

Proposta De Valorização De Resíduos De Borracha Siliconada, Pré-Vulcanizados, Provenientes Das Injetoras De Uma Indústria De Borracha

Reis¹,

Maciel²,

Moraes³

et al. 2020

Gestão De Resíduos Sólidos 4

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

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Main technologiesavailable for biogas purification

Cited by 4 publications

References 19 publications

Biogas Upgrading Using a Single-Membrane System: A Review

Biogas Upgrading Using a Single-Membrane System: A Review

Purification of Biogas: A Quantitative Assessment of Processes

Proposta De Valorização De Resíduos De Borracha Siliconada, Pré-Vulcanizados, Provenientes Das Injetoras De Uma Indústria De Borracha

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