Analysis of CO2 separation and simulation of a partially wetted hollow fiber membrane contactor

Removal of carbon dioxide by aqueous amino acid salts using hollow fiber membrane contactors

“…A method of equation-tearing procedure was applied to linearize the nonlinear equations and to reduce the running time of computers [15]. The detail of this linearization can be found in the previous studies [5,28] and is not repeated here. The Thomas algorithm [29] was applied to solve tridiagonal matrix of linearized algebraic equations in radial direction for each node in axial direction.…”

“…After dissolution, it diffuses with reaction to the liquid phase. The partial differential equation governs in liquid phase, which flows within the fiber using a fully developed laminar parabolic velocity profile [5]. The membrane has uniform pore size distribution and thickness [5].…”

“…The partial differential equation governs in liquid phase, which flows within the fiber using a fully developed laminar parabolic velocity profile [5]. The membrane has uniform pore size distribution and thickness [5]. An atmospheric gas flows into fibers environs in the same direction based on Happel's free surface model [20].…”

“…It was found that the model based on random distribution of fibers is a suitable method for predicting the performance of commercial modules. Many researchers used different solvent for capturing carbon dioxide [3][4][5][6][7][8][9][10][11]. Lu et al [12] used two aqueous solutions of MDEA-AMP and MDEA-PZ for absorbing carbon dioxide.…”

Hollow fiber gas–liquid membrane contactors for acid gas capture: A review

“…The advantage is that the dimension of the lumen channels can be easily defined and it is easier to get numerical solutions. Several theoretical models have been developed to describe acid gas absorption in membrane contactors that the liquid absorbent has been assumed to flow in the lumen of the membrane while the gas flows in the shell side [23,27,[95][96][97]. Following assumptions have been considered:…”