Recent Advances in Post-Combustion CO2 Capture via Adsorption Methods

Abstract

In order to alleviate the environmental problems associated with increasing CO2 emissions, efficient CO2 capture technologies are urgently needed. Nowadays, there are several main kinds of capture methods, such as absorption, membrane, cryogenic and adsorption etc. The principle, advantages and disadvantages of each method have been summarized. Due to its high adsorption rate, low regeneration energy, good selectivity, high stability and gentle operation condition, adsorption has been regarded as the most promising method for industrial application. Additionally, the core of adsorption is to develop good adsorption materials with low-cost and high-efficiency, and some typical materials, including carbonaceous adsorbents, silica gel, zeolite molecular sieve, and metal-organic frameworks (MOFs), have also been introduced. As a new type of material, MOFs are popular with many researchers depending on functionalizing pore surface, permanent and highly adjustable porosity. As more and more potential mechanisms and raw materials have been discovered, MOFs may speed up the process of application of adsorption methods in the industry.