The emission of CO_2 in China ranks top in the world.China has the responsibility to dedicate more effort in CO_2 capture technology.This paper studies the CO_2 capture technology in China.In China,pulverized coal plants are very common and there are no plans for new plants to be built with carbon dioxide capture and storage systems in a near future.This paper focuses on the retrofit of existing pulverized coal plants,which involves three main technologies,including pre-,post and oxy-fuel combustions for CO_2 capture,now still in the primary stage development as compared to other countries,especially European countries.The comparisons between different CO_2 capture technologies show that the oxy-fuel combustion technology performs better than other technologies both in technologic and economic evaluations.The total capital cost for retrofitting a conventional PC plant with CO_2,SO_2,NOx,and Hg removal equipment installations(post-combustion)is more than that of the Oxy-FGR modification.The total O&M cost of an Oxy-FGR retrofit is about half of that of the MEA retrofit.Oxy-fuel combustion technology is a better choice for existing pulverized coal plants.
CO_2 capture technologycoal-fired power plantCO_2 capture power plant
NETL
NSTL
万方数据
维普
