Abstract：The emission of CO2 in China ranks top around the world. China has the responsibility to dedicate more in CO2 capture technology. The aim of this paper is to find a proposed CO2 capture technology in China. As in China, pulverized coal plants are exist commonly. There are not plans for new plants to be built with carbon dioxide capture and storage systems in short terms. We focus our purpose on the retrofit of exist pulverized coal plants. There are 3 main kinds of technologies including pre-, post and oxy-fuel combustion for CO2 capture. After the comparisons between CO2 capture technologies, we concluded that oxy-fuel combustion performs better than other technologies both on technologic and economic evaluations. The total capital cost for retrofitting a conventional PC plant with CO2, SO2, NOX, and Hg removal equipment installations (post-combustion) is more than the Oxy-FGR modification. The total O&M cost of an Oxy-FGR retrofit is about half that of the MEA retrofit. Oxy-fuel combustion would be a better choice for exist pulverized coal plants.
2010, Vol. 28 
