Novel Systems and Membrane Technologies for Carbon Capture

Abstract

Due to the global menace caused by carbon emissions from environmental, anthropogenic, and industrial processes, it has become expedient to consider the use of systems, with high trapping potentials for these carbon-based compounds. Several prior studies have considered the use of amines, activated carbon, and other solid adsorbents. Advances in carbon capture research have led to the use of ionic liquids, enzyme-based systems, microbial filters, membranes, and metal-organic frameworks in capturing CO2. Therefore, it is common knowledge that some of these systems have their lapses, which then informs the need to prioritize and optimize their synthetic routes for optimum efficiency. Some authors have also argued about the need to consider the use of hybrid systems, which offer several characteristics that in turn give synergistic effects/properties that are better compared to those of the individual components that make up the composites. For instance, some membranes are hydrophobic in nature, which makes them unsuitable for carbon capture operations; hence, it is necessary to consider modifying properties such as thermal stability, chemical stability, permeability, nature of the raw/starting material, thickness, durability, and surface area which can enhance the performance of these systems. In this review, previous and recent advances in carbon capture systems and sequestration technologies are discussed, while some recommendations and future prospects in innovative technologies are also highlighted.

Trends in carbon capture technologies: a bibliometric analysis

“…Adsorption, absorption, membranes, and hybrid technologies are promising technologies for carbon capture [38,40,44]. This study split the bibliometric searches into these four categories (adsorption, absorption, membranes, and hybrid technologies) with a fifth, 'combined' category representing the four data sets combined.…”

“…Carbon capture involves the removal of CO 2 from the atmosphere or preventing it from entering the atmosphere. Carbon capture methods may be natural, or technological, with the goal of minimizing the negative effects of climate change [13,40,44]. Technological carbon capture comprises three groups: pre-combustion, post-combustion, and Direct Air Capture (DAC).…”

“…The most common technologies used in these groups of carbon capture include absorption, adsorption, membranes, or hybrid processes, which combine two or more technologies [44]. Oxyfuel combustion and cryogenic distillation are other categories of carbon capture technologies.…”

Room Temperature CO2 Adsorption Studies Using Pure and Ionic Liquid Immobilized Zeolites

“…However, it poses several challenges such as high-energy penalty, corrosion of pipelines, amine degradation, and associated emissions. Therefore, adsorption-based CO 2 capture and separation using solid sorbents have emerged as a potential solution to overcome most of the challenges associated with the conventional amine scrubbing process. − The adsorption occurs via either physisorption due to van der Waals forces and electrostatic interactions or strong chemisorption through covalent bonding. The solid sorbents are typically employed in a cyclic process of adsorption and desorption through a pressure swing or a temperature swing operation. , The CO 2 adsorption/separation process has received considerable attention in various applications such as pre- and post-combustion gas treatment.…”

“…Zeolite-based adsorbents not only exhibit higher CO 2 adsorption capacities but can also tolerate harsh environments and high temperature conditions. , CO 2 adsorption in zeolites typically follows a type I adsorption isotherm, indicating little multilayer adsorption due to their microporous structure. In general, zeolites contain micropores with varying pore sizes, ranging from 0.3 to 1.0 nm (e.g., zeolite A (0.3–0.45 nm); ZSM-5 (0.5–0.6 nm); and X, Y, and β (0.7–0.8 nm)). − …”