김우승
2018-02-28T01:54:45Z
2018-02-28T01:54:45Z
2015-11
FUEL, v. 160, Page. 513-524
0016-2361
1873-7153
https://www.sciencedirect.com/science/article/pii/S001623611500808X
http://hdl.handle.net/20.500.11754/40967
IGCC is an emerging clean coal technology with the potential to produce electricity without damaging the ecosystem. However, efficiency enhancement of the IGCC when pollutant emissions are included in the system is a critical issue that should be evaluated further. In this paper, a large-scale IGCC system is modeled and simulated in three configurations: IGCC without CO2 capture, IGCC with pre-combustion capture, and IGCC with post-combustion capture. The validated model of CO2 capture based on a blended solution of ammonia and AMP is integrated with the IGCC to evaluate system performance in terms of net power produced, efficiency penalty due to CO2 capture, and energy losses in various sections of the IGCC. Moreover, an exergy analysis is carried out to investigate the loss of useful work in major sections of the IGCC for three cases (IGCC without capture, IGCC with pre-capture and IGCC with post-capture). The results indicated that the chemical absorption-based blended solution of AMP and NH3 is an attractive option due to its high CO2 loading capacity and low heat duty requirement; it can also be applied to both the IGCC with pre-combustion capture and IGCC with post-combustion capture. However, IGCC with post-combustion capture is more efficient because the net power produced from IGCC with post-combustion capture (561 MW) is greater than the power obtained from IGCC with pre-combustion capture (518 MW). The efficiency loss due to CO2 was 1.1% for post-combustion capture and 4.3% for pre-combustion capture. Furthermore, about 65% of the total exergy loss was observed in the gasifier and gas turbine combustor only, whereas 41.5% of the total power produced was consumed in the gas turbine compressor and air separation unit. (C) 2015 Elsevier Ltd. All rights reserved.
This work was supported by a National Research Foundation of Korea (NRF) Grant funded by the Korean government (MEST) (No. NRF-2011-0017220). We would like to thank the Higher education Commission of (HEC) Pakistan for the scholarship under title "HRD Initiative-MS leading to PhD program of Faculty development for UESTP" Hanyang University Korea.
en_US
ELSEVIER SCI LTD
Coal
Climate change
CO2 capture
Gasification
IGCC
GAS SHIFT REACTION
CARBON-DIOXIDE CAPTURE
COAL-WATER SLURRIES
POWER-PLANT
PROCESS SIMULATION
REACTION-KINETICS
SYSTEMS
HEAT
OPTIMIZATION
GENERATION
Performance evaluation of integrated gasification combined cycle (IGCC) utilizing a blended solution of ammonia and 2-amino-2-methyl-1-propanol (AMP) for CO2 capture
Article
160
10.1016/j.fuel.2015.08.008
513-524
FUEL
Asif, Muhammad
Bak, Chul-u
Saleem, Muhammad Wajid
Kim, Woo-Seung
2015001837
E
COLLEGE OF ENGINEERING SCIENCES[E]
DEPARTMENT OF MECHANICAL ENGINEERING
wskim