Loading...
Please wait, while we are loading the content...
Similar Documents
Ca–Cu looping process for CO2 capture from a power plant and its comparison with Ca-looping, oxy-combustion and amine-based CO2 capture processes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ozcan, Dursun Can Macchi, A. Lu, Dennis Kierzkowska, Agnieszka M. Ahn, Hyungwoong Müller, Christoph R. Brandani, Stefano |
| Copyright Year | 2015 |
| Abstract | Abstract This study reports the technical performance of an advanced configuration of the calcium looping (Ca-looping) process, called Ca–Cu looping, for the reduction of CO 2 emissions from a subcritical CFB power plant with a net output of 250 MW e . In this new process concept, the thermal power requirement in the calciner is satisfied using a chemical looping combustion cycle. Thus, the power consumption associated with the air separation unit that is required in the conventional Ca-looping process scheme can be eliminated. The reference power plant has also been modified to integrate oxy-combustion, Ca-looping and amine scrubbing technologies for comparison. The fully integrated process flowsheets have been simulated using Honeywell's UniSim Design Suit R400. For a more accurate prediction of the CO 2 capture efficiency in the carbonator of the Ca–Cu looping process, the experimentally obtained cyclic activity of a novel copper-functionalised, calcium-based composite sorbent has been implemented yielding a rigorous carbonator model. The process simulations also include a comprehensive analysis of the CO 2 compression and purification unit as well as a heat exchanger network optimized using pinch analysis for the recovery of excess heat from the high temperature gas and solid streams available in the Ca-looping and Ca–Cu looping processes. Compared to the energy penalty of 10.5 percentage points for a conventional amine scrubbing configuration, the Ca–Cu looping process evaluated in this study achieves the same overall CO 2 capture efficiency with a significantly reduced energy penalty of 3.5 percentage points; the lowest value for all CO 2 capture architectures assessed here. |
| Starting Page | 198 |
| Ending Page | 212 |
| Page Count | 15 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.ijggc.2015.10.021 |
| Volume Number | 43 |
| Alternate Webpage(s) | https://www.research.ed.ac.uk/portal/files/22259945/1_s2.0_S1750583615301080_main.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.ijggc.2015.10.021 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
