PMID- 25389800
OWN - NLM
STAT- MEDLINE
DCOM- 20150821
LR  - 20181202
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 48
IP  - 24
DP  - 2014 Dec 16
TI  - Energy and exergy analyses of an integrated gasification combined cycle power 
      plant with CO2 capture using hot potassium carbonate solvent.
PG  - 14814-21
LID - 10.1021/es5041706 [doi]
AB  - Energy and exergy analyses were studied for an integrated gasification combined 
      cycle (IGCC) power plant with CO2 capture using hot potassium carbonate solvent. 
      The study focused on the combined impact of the CO conversion ratio in the water 
      gas shift (WGS) unit and CO2 recovery rate on component exergy destruction, plant 
      efficiency, and energy penalty for CO2 capture. A theoretical limit for the 
      minimal efficiency penalty for CO2 capture was also provided. It was found that 
      total plant exergy destruction increased almost linearly with CO2 recovery rate 
      and CO conversion ratio at low CO conversion ratios, but the exergy destruction 
      from the WGS unit and the whole plant increased sharply when the CO conversion 
      ratio was higher than 98.5% at the design WGS conditions, leading to a 
      significant decrease in plant efficiency and increase in efficiency penalty for 
      CO2 capture. When carbon capture rate was over around 70%, via a combination of 
      around 100% CO2 recovery rate and lower CO conversion ratios, the efficiency 
      penalty for CO2 capture was reduced. The minimal efficiency penalty for CO2 
      capture was estimated to be around 5.0 percentage points at design conditions in 
      an IGCC plant with 90% carbon capture. Unlike the traditional aim of 100% CO 
      conversion, it was recommended that extremely high CO conversion ratios should 
      not be considered in order to decrease the energy penalty for CO2 capture and 
      increase plant efficiency.
FAU - Li, Sheng
AU  - Li S
AD  - Laboratory of Distributed Energy System and Renewable Energy, Institute of 
      Engineering Thermophysics, Chinese Academy of Sciences , Beijing 100190, China.
FAU - Jin, Hongguang
AU  - Jin H
FAU - Gao, Lin
AU  - Gao L
FAU - Mumford, Kathryn Anne
AU  - Mumford KA
FAU - Smith, Kathryn
AU  - Smith K
FAU - Stevens, Geoff
AU  - Stevens G
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20141125
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Air Pollutants)
RN  - 0 (Carbonates)
RN  - 0 (Solvents)
RN  - 142M471B3J (Carbon Dioxide)
RN  - 7U1EE4V452 (Carbon Monoxide)
RN  - BQN1B9B9HA (potassium carbonate)
RN  - RWP5GA015D (Potassium)
SB  - IM
MH  - Air Pollutants/analysis/*chemistry
MH  - Air Pollution/prevention & control
MH  - Carbon Dioxide/analysis/*chemistry
MH  - Carbon Monoxide/*chemistry
MH  - Carbon Sequestration
MH  - Carbonates/*chemistry
MH  - Hot Temperature
MH  - Potassium/*chemistry
MH  - *Power Plants
MH  - Solvents/*chemistry
EDAT- 2014/11/13 06:00
MHDA- 2015/08/22 06:00
CRDT- 2014/11/13 06:00
PHST- 2014/11/13 06:00 [entrez]
PHST- 2014/11/13 06:00 [pubmed]
PHST- 2015/08/22 06:00 [medline]
AID - 10.1021/es5041706 [doi]
PST - ppublish
SO  - Environ Sci Technol. 2014 Dec 16;48(24):14814-21. doi: 10.1021/es5041706. Epub 
      2014 Nov 25.