Abstract
Carbon dioxide (CO2) emissions has become an increasing concern due to the impact of greenhouse gasses on global warming and also climate change, therefore many studies are forms to develop efficient technology to reduce the carbon dioxide emissions. Many solid materials have been investigated for CO2 capture including carbon based such as coal bottom ash. Coal Bottom Ash (CBA) is a by-product of pulverized coal-fired power generation. Among various post combustion CO2 capture technology, amine impregnated with coal bottom ash has potential for CO2 adsorption. The impregnation process increased the surface area on coal bottom ash particles significantly but on the other hand enhanced the adsorption capacity of coal bottom ash in the CO2 capture. The purpose of this paper is to review the preparation and the performance evaluation of amine impregnated coal bottom ash for CO2 adsorption. From the literature survey, the findings show that coal bottom ash impregnated with amine especially Tetraethylpentamine (TEPA) is the best way to reduce carbon dioxide emissions and utilize the waste as useful adsorbent. This review is highly useful for the application in a bigger industrial scale since most of carbon dioxide emission are the results from anthropogenic sources. Therefore, as CO2 is reduced, it will contribute to a better air quality in everyday life.
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