Carbon capture and storage (CCS) consists of separation

compression

transportation and storage of CO2 from exhaust gas such as vent gases of coalfired power plant. CCS is considered to be the most effective choice for mitigating greenhouse gas of CO2 in the middle and short-term

and attracts more attention recently. Although CCS has been proved to be feasible in technology

it is still unsuitable for commercialization on a large scale due to high cost at present. Most models developed for cost estimation focused on individual process of CCS

especially on capture process. In this paper

definition formulas were given to calculate the total cost of CCS overall process and of emission cuts of CO2. Furthermore

a model economy is developed to estimate total capital and cost for MEA capture

compression

pipeline transportation and saline storage. The economic study for a case of 600 MW PC power plant is also carried out in the paper. The results show that

when CO2 recovery efficiency ranges from 70% to 99%

the total CCS cost for the case is 257—269 CNY·(t CO2)-1

and the cost for emission reduction of CO2 is 364.8—384.2 CNY·(t CO2)-1 respectively.