The adoption of nanodoped membranes in the areas of gas stream separation, water, and wastewater treatments due to the physical and operational advantages of such membranes has significantly increased. The literature has shown that the surface structure and physicochemical properties of nanodoped membranes contribute significantly to the interaction and rejection characteristics when compared to bare membranes. This study reviews the recent developments on nanodoped membranes, and their hybrids for carbon capture and gas separation operations. Features such as the nanoparticles/materials and hybrids used for membrane doping and the effect of physicochemical properties and water vapour in nanodoped membrane performance for carbon capture are discussed. The highlights of this review show that nanodoped membrane is a facile modification technique which improves the membrane performance in most cases and holds a great potential for carbon capture. Membrane module design and material, thickness, structure, and configuration were identified as key factors that contribute directly, to nanodoped membrane performance. This study also affirms that the three core parameters satisfied before turning a microporous material into a membrane are as follows: high permeability and selectivity, ease of fabrication, and robust structure. From the findings, it is also observed that the application of smart models and knowledge-based systems have not been extensively studied in nanoparticle-/material-doped membranes. More studies are encouraged because technical improvements are needed in order to achieve high performance of carbon capture using nanodoped membranes, as well as improving their durability, permeability, and selectivity of the membrane.

Conventional methods to mitigate condensate banking is to inject water or dry gas which raises the reservoir pressure above the dew point. Unfortunately, these methods are inadequate as they lead to late response in achieving low drawdown pressures. This study utilizes the compositional module of Eclipse to build a lean gas reservoir with heterogeneous properties having maximum liquid loading of 6.32% and simulate CO2 and N2 injection scenarios. Comparative analysis on condensate and gas production from five case studies of CO2 huff-n-puff, CO2 cyclic injection, CO2 and, N2 continuous injection and the Gas Alternating Gas (CO2 and N2) are considered for 9 years of production. Parametric studies on the effects of injection and production rates, cyclic time and injection fluid composition investigated. N2, CO2, Cyclic, GAG, and CO2 huff, and puff injection cases resulted in oil recovery factors of 3.83%, 3.81%, 2.9%, 1.85% and 6.1% respectively.