Performance and stability of cellulose triacetate membranes in humid high H2S natural gas feed streams

Peters, T.A.; Ansaloni, L.; Tena, A.; Karvan, O.; Visser, T.; Chinn, D.; Bhuwania, N.

doi:10.1016/j.memsci.2023.122324

Cited by 2 publications

(1 citation statement)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worth noting that, with regard to gas separation, other membrane materials are also investigated. For instance, in the recently published paper [159], the separation performance of the cellulose triacetate (CTA) membrane material in humid high-H 2 S natural gas feed streams has been evaluated. Generally, the above-mentioned membrane types are characterized by high permeability to CO 2 and low permeability to CH 4 .…”

Section: Membrane Types Used For Biogas Upgradingmentioning

confidence: 99%

Biogas Upgrading Using a Single-Membrane System: A Review

Tomczak,

Gryta,

Daniluk

et al. 2024

Membranes

View full text Add to dashboard Cite

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.

show abstract

Section: Membrane Types Used For Biogas Upgradingmentioning

confidence: 99%