Advances in Natural Gas Technology 2012
DOI: 10.5772/38656
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Natural Gas Purification Technologies - Major Advances for CO2 Separation and Future Directions

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Cited by 81 publications
(85 citation statements)
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“…The increase in CO 2 permeance is due to the presence of emim(Tf 2 N) which increased the free volume of the membrane [60] as well as the presence of SAPO-34. However, the results show a similar trend with glassy polymer behavior where the gas permeance decreases while the selectivity increases across the pressure [43][44][45]61,62]. This is common where the diffusivity-based separation shows an inverse permeability/selectivity relation as reported by Robeson [52,62].…”
Section: Membrane Gas Separation Performancesupporting
confidence: 81%
“…The increase in CO 2 permeance is due to the presence of emim(Tf 2 N) which increased the free volume of the membrane [60] as well as the presence of SAPO-34. However, the results show a similar trend with glassy polymer behavior where the gas permeance decreases while the selectivity increases across the pressure [43][44][45]61,62]. This is common where the diffusivity-based separation shows an inverse permeability/selectivity relation as reported by Robeson [52,62].…”
Section: Membrane Gas Separation Performancesupporting
confidence: 81%
“…Natural gas delivered to consumers by pipeline should contain less than 2 mol percent of CO 2 , and H 2 S of less than 4 ppm (Hao et al, 2002;Kohl and Nielsen, 1997;Shimekit and Mukhtar, 2012). High level of contaminations in some natural gas fields (which mainly includes CO 2 and H 2 S) makes production from those reserves infeasible (Golombok and Morley, 2004).…”
Section: Cost Of Ch 4 /Co 2 Mixture Separationmentioning
confidence: 98%
“…Porém, diversos são os problemas encontrados na quantificação e identificação destas substâncias, frutos de suas volatilidades à temperatura ambiente (Schirmer, 2004) e baixas concentrações em matrizes complexas na faixa de ng/m 3 a g/m 3 (Cruz e Campos, 2008).…”
Section: Introductionunclassified