Hybrid processes for the removal of acid gases from natural gas

Membrane system design for multicomponent gas mixtures via mixed-integer nonlinear programming

“…The permeability coefficients used in this study have been derived from available sources (Pan, 1986;Ettouney et al, 1995;Lee et al, 1995). These values are consistent with data presented in the more recent literature (Bhide, Voskericyan & Stern, 1998).…”

Natural Gas Purification Technologies - Major Advances for CO2 Separation and Future Directions

“…Some researchers (Bhide, Voskericyan et al 1998) also report that a membrane-amine hybrid system would be economical in comparison to an amine system alone or a membrane system alone for various conditions, such as low CO 2 compositions, and a recent study confirms the economic feasibility of another membrane-amine system design (Falk-Pedersen and Dannstrom 1997).…”

“…Usually, the integration of membranes with PSA is considered in H 2 separation, while hybrid membranes + amine absorption are applied to the CO 2 separation. Cost comparison for membrane and absorption (diethanolamine) process showed that the membrane process is more economical for CO 2 feed concentrations in the range 5-40 mol % (Bhide, Voskericyan et al 1998). It does ascertain that when the feed contains other gases such as H 2 S, the operating cost for removing the additional gases also increases.…”

Separation performance of asymmetric membranes based on PEGDa/PEI semi-interpenetrating polymer network in pure and binary gas mixtures of CO2, N2 and CH4

“…The economical advantages along with lower maintenance and space requirements are making membrane technology a popular choice for gas separations [1][2][3][4]. Also, hybridization of membrane technology with conventional methods to achieve superior performance is possible [6]. High selectivity and permeance are obviously desirable; however the selection of a membrane material should be such that the mixed gas selectivity is not compromised for permeance under the operating conditions of the process.…”