CO2 Separation with Nano-thick Polymeric Membrane for Pre- combustion

Abstract

Poly(amidoamine) (PAMAM) dendrimers exhibit quite high specificity toward CO 2 and have been used for CO 2 separation materials in membrane separation. PAMAM dendrimers are chemically immobilized by the reaction with epoxide-bearing poly(ethylene glycol)s (epoxy-PEGs). The reaction mixture is cast on a pre-treated substrate by spin-coating manner to form a nano-thick self-standing membrane. The membrane thickness is readily controlled by changing the spin-coating conditions and the reactant concentrations. The resulting nano-thick membranes show preferential CO 2 permeation over H 2 with very high CO 2 permeance. Although the CO 2 selectivity is not high, reduction of membrane thickness would be an approach to enhance CO 2 permeability

CO2 capture using membrane contactors: a systematic literature review

“…[447][448][449][450][451]453,454,456,458,459,[463][464][465][466][467]472,473,475,[478][479][480]482,483,[484][485][486][487][488][489]496,497,[500][501][502]505,506,508,513,514,516,517,519,521,523,524,528,533,538,543]. One of the reasons for the low popularity of hydrophilic membranes is the low thermal and chemical stability of membranes, which in turn has an effect on the flux, demonstrated in Table…”