Recent developments and consideration issues in solid adsorbents for CO2 capture from flue gas

Abstract

The increase in energy demand caused by industrialization leads to abundant CO 2 emissions into atmosphere and induces abrupt rise in earth temperature. It is vital to acquire relatively simple and cost-effective technologies to separate CO 2 from the flue gas and reduce its environmental impact. Solid adsorption is now considered an economic and least interfering way to capture CO 2 , in that it can accomplish the goal of small energy penalty and few modifications to power plants. In this regard, we attempt to review the CO 2 adsorption performances of several types of solid adsorbents, including zeolites, clays, activated carbons, alkali metal oxides and carbonates, silica materials, metal-organic frameworks, covalent organic frameworks, and polymerized high internal phase emulsions. These solid adsorbents have been assessed in their CO 2 adsorption capacities along with other important parameters including adsorption kinetics, effect of water, recycling stability and regenerability. In particular, the superior properties of adsorbents enhanced by impregnating or grafting amine groups have been discussed for developing applicable candidates for industrial CO 2 capture.

Nitrogen-Doped Porous Carbon Materials Derived from Graphene Oxide/Melamine Resin Composites for CO2 Adsorption

“…Over the past decades, different porous solid materials such as carbon materials, zeolite, metal-organic frameworks, porous polymers and their composite materials have been investigated as CO 2 adsorbents [6][7][8][9]. Particularly, porous carbon materials (PCM) show great application potential in CO 2 capture because of their low cost, abundant source, excellent CO 2 adsorption performance and physicochemical stability [10][11][12].…”

The dynamic CO2 adsorption of polyethylene polyamine-loaded MCM-41 before and after methoxypolyethylene glycol codispersion

“…Coal-red power plants are undoubtedly large CO 2 emission points all over the world, in which the capture of CO 2 has been extensively researched; Bui et al has reviewed the progress for carbon capture and storage (CCS) and pointed out the way forward. [1][2][3] Solid amine adsorption technology, with weak corrosivity, highly efficient adsorption performance and low regeneration energy consumption, is recognized as an effective method. [4][5][6][7] So far the study of amine-loaded solid sorbents mainly focuses on immobilizing amines onto the inner surface of porous supporting materials, such as metal-organic frameworks (MOFs), [8][9][10][11][12][13] mesoporous molecular sieves, 14-22 silicas [23][24][25][26][27][28][29][30][31] and so on.…”

Solid‐Waste‐Derived Carbon Dioxide‐Capturing Materials

“…[230] Herein, ad etailed literaturer eviewo fp rogresso fr esearch into the preparation of solid-waste-derived CO 2 capturing materials has been provided. The ultimatea im of CCS is to cut down on the expense of CO 2 trapping by reducing energy demands and enhancingt he energy conversion efficiency.T herefore, the most effective way is to develop new and low-cost sorbents and technologies, so that the CO 2 capture process can be operated reliably and the adsorbentsc an be repeatedly use in an actual flue gas.…”

“…The ultimatea im of CCS is to cut down on the expense of CO 2 trapping by reducing energy demands and enhancingt he energy conversion efficiency.T herefore, the most effective way is to develop new and low-cost sorbents and technologies, so that the CO 2 capture process can be operated reliably and the adsorbentsc an be repeatedly use in an actual flue gas. [230] Herein, ad etailed literaturer eviewo fp rogresso fr esearch into the preparation of solid-waste-derived CO 2 capturing materials has been provided. It was split into four parts according to the type of synthesized solid CO 2 sorbent (carbon-based,s ilica-based,alkali silicate based, and calcium-based sorbents).…”