| Title |
Novel approach to CO2 capture: Improving the hybridization between membranes and calcium-looping |
| Authors |
GARCÍA LUNA, SEBASTIAN, ORTIZ DOMÍNGUEZ, CARLOS |
| External publication |
No |
| Means |
CHEMICAL ENGINEERING JOURNAL |
| Scope |
Article |
| Nature |
Científica |
| JCR Quartile |
1 |
| SJR Quartile |
1 |
| Web |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85196041740&doi=10.1016%2fj.cej.2024.152781&partnerID=40&md5=d209196a2391fe8a03677088a138623c |
| Publication date |
01/01/2024 |
| Scopus Id |
2-s2.0-85196041740 |
| DOI |
10.1016/j.cej.2024.152781 |
| Abstract |
A 70 MWe Waste-to-Energy (WtE) plant is modelled to design and evaluate the performance of two CO2 capture strategies: a standalone Calcium-Looping (CaL) process (Case 1) and an innovative hybrid system combining CO2-selective polymeric membranes with CaL (Case 2). The latter involves a CO2 pre-enrichment process facilitated by a pressure gradient within the membrane module, which enhances the CaL performance. The heat released in the CaL process is recovered within a Combined Cycle configuration, taking advantage of the pressurized stream exiting the membrane modules. Comparative analysis reveals that the hybrid system (Case 2) significantly outperforms the standalone CaL process (Case 1) in efficiency and economic viability. With a baseline LCOE for a standard WtE plant without CO2 capture at 150 /MWh, the LCOE for Cases 1 and 2 are 294 /MWh and 243.21 /MWh, respectively. The hybrid system achieves a thermoelectric efficiency of 25.25 %, reducing the energy penalty to 3.32 %points compared to Case 1, which results in 9.49 %points. Furthermore, the cost of avoided carbon emissions is significantly lower in Case 2 (83.82 /ton CO2) than in Case 1 (155.12 /ton CO2), underscoring the hybrid system\'s superior potential for efficient CO2 capture in WtE applications. © 2024 Elsevier B.V. |
| Keywords |
Calcium; Gas permeable membranes; Hybrid systems; Polymeric membranes; BECCS; Calcium looping; Capture system; CO2 polymeric membrane; Gas separations; Hybrid CO2 capture system; Membrane-based; Membrane-based gas separation; Waste to energy; Waste-to-energy plants; Carbon dioxide |
| Universidad Loyola members |
|
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