A novel gas purification system for biologically produced gases

Beggel, Franz Jakob; Nowik, Isabella; Modigell, Michael; Shalygin, M. G.; Teplyakov, V. V.; Zenkevitch, Victor

doi:10.1016/j.jclepro.2010.06.015

Cited by 22 publications

(7 citation statements)

References 16 publications

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“…Authors of papers (Dibrov et al, 2014;Trusov et al, 2011;Bazhenov et al, 2012;Shutova et al, 2014;Shalygin et al, 2008;Beggel et al 2010;Volkov et al 2015) examined the potential of dense membrane contactors based on disubstituted polyacetylenes, polynorbornene, polyvinyltrimethylsilane (PVTMS) for CO2 stripping and absorption with various both chemical and physical absorbents. It was demonstrated that PTMSP, a polymer with the highest CO2 permeability, is long-term stable and impermeable under elevated temperatures and pressures for the hydrodynamic flux of water (trans-membrane pressure Δp up to 100 bar, T up to 100°C) (Trusov et al, 2011;Grekhov et al, 2012), aqueous amine solvents (Δp up to 40 bar, T up to 100°C) (Trusov et al, 2011;Bazhenov et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

CO2 stripping from ionic liquid at elevated pressures in gas-liquid membrane contactor

Баженов

Малахов

Bakhtin

et al. 2018

International Journal of Greenhouse Gas Control

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In this study, the gas-liquid membrane contactor was considered for regeneration of the roomtemperature ionic liquids (RTIL) that can be used as physical solvents for carbon dioxide capture process at elevated pressures. Poly[1-(trimethylsilyl)-1-propyne] (PTMSP) was selected as a membrane material due to its high mass transport characteristics and good mechanical properties. Nine different RTILs, such asand [P66614][Phos], were used to evaluate the solvent-membrane compatibility. The long-term sorption tests (40+ days) revealed that the solvent-membrane interaction is mainly determined by the liquid surface tension regardless of viscosity and molecular size of RTILs. For instance, [Emim][BF4] and [Emim][DCA], having the surface tension of 60.3 and 54.0 mN/m, demonstrated a very low affinity to the bulk material of PTMSP (sorption as low as 0.02 g/g; no swelling); while for the next ionic liquid [Bmim][BF4] with surface tension of 44.4 mN/m, the sorption and swelling of PTMSP was 0.79 g/g and 21%, respectively. The long-term RTIL permeation test (p=40 bar, T=50°С, t>400 hours) confirmed that there is no hydrodynamic flow through PTMSP for [Emim][DCA] and [Emim][BF4]. The concept of CO2 stripping from RTIL with the membrane contactor by the pressure (p=40 bar) and temperature (T=20°С) swing was proofed by using PTMSP membrane and [Emim][BF4]. The overall mass transfer coefficient value was equal to(1.6-3.8)•10 -3 cm/s with respect to liquid flow rate. By using the resistance-in-series model, it was shown that the membrane resistance contribution to the gas transfer was estimated to be approximately 8%.

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Section: Introductionmentioning

confidence: 99%

CO2 stripping from ionic liquid at elevated pressures in gas-liquid membrane contactor

Баженов

Малахов

Bakhtin

et al. 2018

International Journal of Greenhouse Gas Control

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“…Although membrane contactors are interesting and suitable options for the purification of gaseous mixtures with biological origin [93,68,10,83], their application receives somewhat less attention in comparison with NPPMs and SILMs. Therefore, MCs are now beyond the scope of this paper and only non-porous, polymeric and supported ionic liquid membranes are focused.…”

Section: Introductionmentioning

confidence: 99%

Biohydrogen purification by membranes: An overview on the operational conditions affecting the performance of non-porous, polymeric and ionic liquid based gas separation membranes

Bakonyi

Nemestóthy

Bélafi–Bakó

2013

International Journal of Hydrogen Energy

146

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Membrane Separation Polymer Ionic liquidIntegrated system a b s t r a c t Many types of membranes are available to enrich hydrogen. Nevertheless, there are some with special potential for biohydrogen purification such as the non-porous, polymeric and ionic liquid based membranes. The attractiveness of these membranes comes from the fact that they can be employed nearly under the conditions where biohydrogen formation taking place. Therefore, they appear as promising candidates to be coupled with hydrogen producing bioreactors and hence giving the chance for in situ biohydrogen concentration.It is known that the feasibility and efficiency of membrane technology e beside material selection and module design e significantly depend on the separation circumstances.Thus, the operation of membranes is a key issue and the most important factors to be considered for gas purification are the composition of gas to be separated, the pressure and temperature applied. The scope of this study is to give a comprehensive overview on the recent applications of non-porous, polymeric and ionic liquid supported membranes for biohydrogen recovery, placing emphasis on the operational conditions affecting membrane's behavior and performance. Furthermore, a novel concept for integrated biohydrogen production and purification using gas separation membranes is demonstrated and discussed.

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“…Independent research reports on the applicability of membrane contactors for biohydrogen concentration demonstrated that this technique was sufficient to remove carbon-dioxide from hydrogen containing gaseous mixtures [13,14]. However, this technology suffers from the drawback that various chemicals must be used in the process for CO 2 absorption taking place within the membrane contactor itself.…”

Section: Introductionmentioning

confidence: 99%

Biohydrogen purification using a commercial polyimide membrane module: Studying the effects of some process variables

Bakonyi

Kumar

Nemestóthy

et al. 2013

International Journal of Hydrogen Energy

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A novel gas purification system for biologically produced gases

Cited by 22 publications

References 16 publications

CO2 stripping from ionic liquid at elevated pressures in gas-liquid membrane contactor

CO2 stripping from ionic liquid at elevated pressures in gas-liquid membrane contactor

Biohydrogen purification by membranes: An overview on the operational conditions affecting the performance of non-porous, polymeric and ionic liquid based gas separation membranes

Biohydrogen purification using a commercial polyimide membrane module: Studying the effects of some process variables

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