Use of membranas for biogas purification: review

Gomes, Michelle Garcia; Morais, Luís Carlos de; Pasquini, Daniel

doi:10.14295/holos.v19i3.12339

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…Certainly, it has a negative impact on human health and is harmful to the environment [32,34,41,88,92,124,125]. 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].…”

Section: H 2 Smentioning

confidence: 99%

“…It must be stressed that CH 4 is a valuable source of energy as it is characterized by a higher calorific value than biodiesel, bioethanol and biomethanol [11]. Therefore, the global biogas and biomethane markets have been growing over the last years [12]. Furthermore, as displayed in Figure 2, the number of biomethane plants have systematically increased [13].…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Introductionmentioning

confidence: 99%

Biogas Upgrading Using a Single-Membrane System: A Review

Tomczak,

Gryta,

Daniluk

et al. 2024

Membranes

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“…The most direct method for biogas upgrading is the membrane separation [78][79][80]. There is information about commercial equipment for biogas upgrading.…”

Section: Biogas Upgradingmentioning

confidence: 99%

Biogas Production: Evaluation and Possible Applications

Beschkov¹

2022

Biogas - Basics, Integrated Approaches, and Case Studies

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Biogas is an excellent example of renewable feedstock for energy production enabling closure of the carbon cycle by photosynthesis of the existing vegetation, without charging the atmosphere with excessive carbon dioxide. The present review contains traditional as well as new methods for the preparation of raw materials for biogas production. These methods are compared by the biogas yield and biogas content with the possible applications. Various fields of biogas utilization are discussed. They are listed from simple heating, electricity production by co-generation, fuel cell applications to catalytic conversions for light fuel production by the Fischer-Tropsch process. The aspects of carbon dioxide recycling reaching methane production are considered too.

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