CO2 stripping from monoethanolamine using a membrane contactor

CO2 desorption from rich alkanolamine solution by using membrane vacuum regeneration technology

“…Membrane wetting will increase the mass transfer resistance of membrane dramatically and this phenomenon was also reported by several researchers (Khaisri et al, 2011;Lv et al, 2010;Wang et al, 2005). The gas-side resistance almost unchanged with increasing liquid flow rate and was much smaller compared with liquid phase resistance, especially in the reduced pressure condition.…”

“…They reported that ceramic contactors can be applied to a gas-liquid stripping process and the mass transfer resistance in the liquid phase was the majority. Khaisri et al (2011) did similar work but in PTFE membrane contactor, and found high porosity showed superior desorption performance, however the long term performance deteriorated due to the membrane wetting. Simioni et al (2011) also investigated membrane stripping of CO 2 from aqueous potassium solvent using PTFE membrane and asymmetric PS membrane with hydrophobic surface coating respectively.…”

“…In terms of membrane material selection, several researchers (Kosaraju et al, 2005;Koonaphapdeelert et al, 2009;Khaisri et al, 2011;Simioni et al, 2011) mentioned above selected a range of membranes to study the performance of CO 2 membrane stripping process. Requirements of ideal membrane material for membrane vacuum regeneration technology are summarized below: (1) high permeate flux and selectivity for CO 2 ; (2) great chemical and thermal stability; (3) great hydrophobicity without membrane wetting; (4) high mechanical strength; (5) commercial application approvable.…”

Pushing the limits of intensified CO2 post-combustion capture by gas–liquid absorption through a membrane contactor

“…Recently, several studies have been published about CO 2 desorption by using membrane contactor as regeneration technology [49][50][51]. The authors validate the concept, i.e.…”

Performance evaluation and mass transfer study of CO2 absorption in flat sheet membrane contactor using novel porous polysulfone membrane

“…In this way, the role of the membrane has been just a stationary interface between gas and liquid phases and does not have any function in offering the selectivity between the species of gas streams [16]. Hence, the membrane contactor furnishes a modular system with high interfacial area per unit volume, easy scale-up with independent control of gas and liquid streams and high selectivity with high mass transfer flux provided by liquid absorbent [17,18]. On the other hand, in addition to the gas phase and liquid phase mass transfer resistances, the membrane contactor module has the drawback of extra membrane mass transfer resistance, which reduces its performance.…”