The effect of hydrogen sulfide, carbon monoxide and water on the performance of a PDMS membrane in carbon dioxide/nitrogen separation

Scholes, Colin A.; Stevens, Geoffrey W.; Kentish, Sandra E.

doi:10.1016/j.memsci.2009.12.027

Cited by 114 publications

(74 citation statements)

References 34 publications

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“…In a research by Scholes et al the impact of H 2 S and water content on the characteristics of PDMS membrane was sought [85]. It was concluded that when H 2 S and CO 2 permeated simultaneously through the membrane CO 2 permeability has decreased significantly.…”

Section: Strategy Referencementioning

confidence: 99%

“…This is another fact that proves the membrane's performance for biohydrogen recovery should be assessed not only under "ideal" circumstances but also with "real" gas mixtures, representing much more complex matrices to be handled. Scholes et al [85] i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y x x x ( 2 0 1 3 ) 1 e1 5 7 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831...…”

Section: 3mentioning

confidence: 99%

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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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Section: Strategy Referencementioning

confidence: 99%

Section: 3mentioning

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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“…Consequently, several works report permeability of gases from multicomponent gas mixtures, in promising membrane materials. [7][8][9][10][11][12] Gas permeability in dense membranes is the product of the solubility and diffusivity contributions, as the permeation process requires dissolution of the fluid inside the solid phase, together with 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 3 diffusion through the polymer matrix under a driving force. Selectivity in a binary gas mixture is the product of solubility selectivity, dependent upon the different sorption levels of each gas inside the matrix, and diffusivity selectivity, essentially associated to the different sizes of each gas penetrant.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10][11][12] In previous work we have presented in detail the experimental apparatus used for binary gas solubility, [19] that was inspired by the one designed by Sanders et al [20][21][22] The present system relies on a similar layout, which consisted of a pressure decay system combined with chromatographic analysis of the equilibrium gaseous mixture, but applies a novel procedure which makes the system more flexible. In particular, the method allows measurements of the solubility of each component with two different protocols: i) at constant fugacity (or partial pressure) of one component and variable fugacity of the second component, or ii) at constant equilibrium composition of the gaseous phase and variable total pressure.…”

Section: Introductionmentioning

confidence: 99%

Mixed gas sorption in glassy polymeric membranes: II. CO2/CH4 mixtures in a polymer of intrinsic microporosity (PIM-1)

Vopička

Angelis

et al. 2014

Journal of Membrane Science

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The individual solubility of CH 4 and CO 2 from binary gas mixtures was measured at 35 °C and up to 35 bar in a polymer of intrinsic microporosity (PIM-1), at different compositions of the gas phase (from 0 to 50 mol% of CO 2 ). The experiments were conducted on a pressure-decay apparatus equipped with a gas chromatograph, allowing a highly flexible measuring procedure. The gas solubility was plotted versus gas phase composition, total pressure, gas fugacity and second gas concentration. The mixed gas solubility of both species, CH 4 and CO 2 , is lower than the pure gas value at the same fugacity, but the reduction of methane solubility due to the presence of CO 2 is generally more significant. Such behavior is due to the fact that CO 2 has normally higher solubility than methane: indeed the depression of the solubility coefficient with respect to the pure gas value is similar for both gases, when reported at the same concentration of the second gas.The real, mixed gas solubility selectivity is in general higher than the ideal value calculated from pure gas behavior. The ratio between real and ideal solubility selectivity increases with CO 2 concentration in the membrane, according to a single mastercurve, reaching a maximum value of 4, and increases also with the ratio between CO 2 and CH 4 concentration in the membrane. In particular, as in the case of other glassy polymers, the real solubility selectivity of CO 2 over CH 4 is higher than the ideal value if c(CO 2 )>c(CH 4 ), and it is lower than the ideal value if the opposite condition holds true. Such behavior occurs because the competition for sorption is normally less effective on the more abundant penetrant in the polymer. A selectivity-solubility performance plot can be drawn for this system.

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“…For post-combustion applications, the permeate flux of each compound is assumed to result from its own driving, flux coupling effects being negligible (Scholes et al, 2010;Hughes and Jiang, 1995;Dhingra and Marand, 1998). The influence of these different variables will be discussed hereafter, through a series of simulations, in link with the materials performances detailed in the previous section.…”

Section: Single Stage Membrane Process Design For Co 2 Capture Applicmentioning

confidence: 99%

Membrane Separation Processes for Post-Combustion Carbon Dioxide Capture: State of the Art and Critical Overview

Belaissaoui

Favre

2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Re´sume´-Proce´de´s membranaires pour le captage du dioxyde de carbone : e´tat de l'art et revue critique -Les proce´de´s de se´paration par membrane ont e´te´, dans un premier temps, rarement pre´conise´s pour le captage du dioxyde de carbone en post-combustion, les proce´de´s d'absorption gaz-liquide dans un solvant chimique e´tant conside´re´s comme la technologie la plus mature et la plus adapte´e pour assurer cette ope´ration. Une revue critique des possibilite´s et limites des membranes pour le captage du CO 2 par perme´ation gazeuse est pre´sente´e. Les performances de diffe´rents types de mate´riaux membranaires (polyme`res denses, mate´riaux inorganiques, matrices hybrides, membranes liquides) sont discute´es sur le plan de la se´lectiviteé t de la perme´abilite´, en prenant en compte les re´sultats expe´rimentaux les plus re´cents dans ce domaine. Les caracte´ristiques d'une unite´de perme´ation gazeuse mono-e´tage´e fonctionnant en re´gime permanent, de´termine´es par simulation, sont ensuite de´taille´es, en particulier par rapport aux contraintes de purete´et de de´pense e´nerge´tique de l'ope´ration, en lien avec les performances du mate´riau. Finalement, les possibilite´s des dispositifs membranaires multie´tage´s et des proce´de´s hybrides associant une unite´de perme´ation gazeuse et un autre proce´de´, encore peu e´tudie´es dans la litte´rature sont e´voque´es, ainsi que les besoins d'analyse technicoe´conomiques afin de mieux identifier la place et le roˆle optimal des membranes pour le captage du CO 2 .Abstract -Membrane Separation Processes for Post-Combustion Carbon Dioxide Capture: State of the Art and Critical Overview -Membrane processes have been initially seldom considered within a post-combustion carbon dioxide capture framework. More traditional processes, particularly gas-liquid absorption in chemical solvents, are often considered as the most appropriate solution for the first generation of technologies. In this paper, a critical state of the art of gas separation membranes for CO 2 capture is proposed. In a first step, the key performances (selectivity, permeability) of different membrane materials such as polymers, inorganic membranes, hybrid matrices and liquid membranes, including recently reported results, are reviewed. In a second step, the process design characteristics of a single stage membrane unit are studied. Purity and energy constraints are analysed as a function of operating conditions and membrane materials performances. The interest of multistage and hybrid systems, two domains which have not sufficiently investigated up to now, are finally discussed. The importance of technico-economical analyses is highlighted in order to better estimate the optimal role of membranes for CCS applications.

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The effect of hydrogen sulfide, carbon monoxide and water on the performance of a PDMS membrane in carbon dioxide/nitrogen separation

Cited by 114 publications

References 34 publications

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

Mixed gas sorption in glassy polymeric membranes: II. CO2/CH4 mixtures in a polymer of intrinsic microporosity (PIM-1)

Membrane Separation Processes for Post-Combustion Carbon Dioxide Capture: State of the Art and Critical Overview

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