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Techno-Economic Assessment of IGCC Power Plants Using Gas Switching Technology to Minimize the Energy Penalty of $CO_{2}$ Capture
| Content Provider | MDPI |
|---|---|
| Author | Álvaro, Ángel Jiménez Szima, Szabolcs Pozo, Carlos Arnaiz del Cloete, Schalk Fogarasi, Szabolcs Cormos, Ana-Maria Cormos, Calin-Cristian Amini, Shahriar |
| Copyright Year | 2021 |
| Description | Cost-effective $CO_{2}$ capture and storage (CCS) is critical for the rapid global decarbonization effort recommended by climate science. The increase in levelized cost of electricity (LCOE) of plants with CCS is primarily associated to the large energy penalty involved in $CO_{2}$ capture. This study therefore evaluates three high-efficiency CCS concepts based on integrated gasification combined cycles (IGCC): (1) gas switching combustion (GSC), (2) GSC with added natural gas firing (GSC-AF) to increase the turbine inlet temperature, and (3) oxygen production pre-combustion (OPPC) that replaces the air separation unit (ASU) with more efficient gas switching oxygen production (GSOP) reactors. Relative to a supercritical pulverized coal benchmark, these options returned $CO_{2}$ avoidance costs of 37.8, 22.4 and 37.5 €/ton (including $CO_{2}$ transport and storage), respectively. Thus, despite the higher fuel cost and emissions associated with added natural gas firing, the GSC-AF configuration emerged as the most promising solution. This advantage is maintained even at $CO_{2}$ prices of 100 €/ton, after which hydrogen firing can be used to avoid further $CO_{2}$ cost escalations. The GSC-AF case also shows lower sensitivity to uncertain economic parameters such as discount rate and capacity factor, outperforms other clean energy benchmarks, offers flexibility benefits for balancing wind and solar power, and can achieve significant further performance gains from the use of more advanced gas turbine technology. Based on all these insights, the GSC-AF configuration is identified as a promising solution for further development. |
| Ending Page | 617 |
| Page Count | 24 |
| Starting Page | 594 |
| e-ISSN | 25718797 |
| DOI | 10.3390/cleantechnol3030036 |
| Journal | Clean Technologies |
| Issue Number | 3 |
| Volume Number | 3 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-08-10 |
| Access Restriction | Open |
| Subject Keyword | Clean Technologies Energy and Fuel Technology Gas Switching Combustion Gas Switching Oxygen Production Integrated Gasification Combined Cycle Chemical Looping Combustion Ccs |
| Content Type | Text |
| Resource Type | Article |
