Biogas upgrading technologies – Recent advances in membrane-based processes

Gkotsis, Petros; Kougias, Panagiotis; Mitrakas, Manassis; Zouboulis, Anastasios I.

doi:10.1016/j.ijhydene.2022.10.228

Cited by 43 publications

(20 citation statements)

References 93 publications

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“…Before biogas utilization, it must be purified to remove CO 2 and other impurities, like H 2 S, NH 3 , and other organic minor compounds. Several reviews have revised all of the available technologies for upgrading biogas, − and membrane technology has been proved as a viable alternative. There are even some commercially available systems based on polyimide hollow fiber membranes to purify biogas, although they do not contemplate the simultaneous recovery of CO 2 yet…”

Section: Biogas Upgrading: Backgroundmentioning

confidence: 99%

Analysis of the Techno-Economic Competitiveness of a Three-Stage Membrane Separation Process for Biogas Upgrading Using a Biopolymer-Based Mixed-Matrix Membrane

Abejón,

Torre-Celeizabal,

Casado-Coterillo

et al. 2024

ACS Sustainable Chem. Eng.

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Section: Biogas Upgrading: Backgroundmentioning

confidence: 99%

Analysis of the Techno-Economic Competitiveness of a Three-Stage Membrane Separation Process for Biogas Upgrading Using a Biopolymer-Based Mixed-Matrix Membrane

Abejón,

Torre-Celeizabal,

Casado-Coterillo

et al. 2024

ACS Sustainable Chem. Eng.

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“…Sweden has set a target of using biomethane as a transportation fuel at a 100 percent rate by 2028 [65]. Table 4 shows the approximate investment and capital cost of the various biogas upgradation technology [91]. Currently, there are 181 plants using water scrubbing technology, which is widely used technique.…”

Section: Industrial Scale Of Biogas Upgrading Technologiesmentioning

confidence: 99%

Recent Development in Physical, Chemical, Biological and Hybrid Biogas Upgradation Techniques

et al. 2022

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Energy driven technologies and enhanced per-capita waste production have led to the establishment of novel technologies to simultaneously produce fuels as well as treat the wastes. Anaerobic digestion is cost-effective and sustainable process to produce biogas. Biogas is a mixture of CO2, CH4, H2S, is an eco-friendly and inexpensive renewable biofuel. This mixture of gases restricts biogas utilization in vehicular fuel, CHPs, therefore, biogas upgradation becomes a necessary step. Conventional upgradation technologies for example water scrubbing, physical adsorption, chemical adsorption, amine scrubbing, etc. are cost intensive and require high maintenance. Novel technologies like biological methods of biogas upgradation are being investigated and new improvements are made in the conventional methods. This review aims to give a close insight about various technologies of upgradation including, pressure swing, amine scrubbing, membrane separation, cryogenic separation, biological methods, etc., along with the major challenges and limitations. The study also intends to provide an overview about the future perspective and scope of these technologies.

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“…They demonstrated the dependence of membrane performance on feed gas composition, operating pressure, and temperature. Gkotsis et al 9 have reviewed different biogas upgradation techniques and suggest that membrane technology, though employed successfully, still requires more research to develop simpler materials and improve efficiency. These studies suggest that polymeric membranes possess a high potential, and efforts to improve the membrane performance in terms of flux, selectivity, and life cycle are being made continuously.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Aspects of Membrane Synthesis: Application to Biogas Enrichment

Negi,

Suresh

2023

Ind. Eng. Chem. Res.

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While biogas offers attractive possibilities for partial replacement of fossil fuel with waste-derived fuel gas, the presence of a significant amount of CO 2 in biogas lowers its calorific value. The present study addresses the possibility of membrane technology for separating the CO 2 in biogas to upgrade it to biomethane. In the first part, we study the impact of thermodynamic factors on membrane synthesis by the dry−wet phase inversion method. We construct and compare ternary phase diagrams for water/solvent/polysulfone systems for different solvents and their mixtures. The Flory−Huggins theory is shown to provide reasonable fits to the ternary data obtained by cloud point experiments and hence serve as a useful tool for solvent selection/ formulation. Differences in structure and performance of the cast membranes are correlated with shifts in the binodal curve in the ternary phase diagram. In the second part, the optimal synthesis parameters defined in the first part are used to synthesize membranes and test them on pure gas permeation, permeation of simulated biogas mixtures, and finally, on actual biogas from an operating plant, and differences in permeability and selectivity observed in these different cases were analyzed. The "optimized" solvent composition leads to membranes that give a CO 2 permeance of 7.07 GPU and CO 2 /CH 4 (ideal) selectivity of 20.77. With made-up CO 2 /CH 4 mixtures, there was a drop (of up to 28%) in CO 2 permeance and (up to 32.6%) in selectivity at the same pressure. With raw biogas of similar composition, the membrane shows significantly lower values of methane permeance, but with selectivity values closer to ideal selectivity.

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Biogas upgrading technologies – Recent advances in membrane-based processes

Cited by 43 publications

References 93 publications

Analysis of the Techno-Economic Competitiveness of a Three-Stage Membrane Separation Process for Biogas Upgrading Using a Biopolymer-Based Mixed-Matrix Membrane

Analysis of the Techno-Economic Competitiveness of a Three-Stage Membrane Separation Process for Biogas Upgrading Using a Biopolymer-Based Mixed-Matrix Membrane

Recent Development in Physical, Chemical, Biological and Hybrid Biogas Upgradation Techniques

Thermodynamic Aspects of Membrane Synthesis: Application to Biogas Enrichment

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