Artículo
Switchable catalysis for methanol and synthetic natural gas synthesis from CO2: A techno-economic investigation
Autor/es | Merkouri, Loukia Pantzechroula
Mathew, Jayson Jacob, Jerin Ramírez Reina, Tomás Duyar, Melis S. |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica |
Fecha de publicación | 2023-12-18 |
Fecha de depósito | 2024-05-29 |
Publicado en |
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Resumen | The oil and gas sector produces a considerable volume of greenhouse gas emissions, mainly generated from
flaring and venting natural gas. Herein, a techno-economic analysis has been performed of a switchable catalytic
process ... The oil and gas sector produces a considerable volume of greenhouse gas emissions, mainly generated from flaring and venting natural gas. Herein, a techno-economic analysis has been performed of a switchable catalytic process to convert the CH4 and CO2 in flared/vented natural gas into syngas or methanol. Specifically, it was shown that depending on greenhouse gas composition, dry methane reforming (DRM), reverse water-gas shift (RWGS), and CO2 methanation could be chosen to valorise emissions in an overall profitable and flexible operation scenario. The switchable process produced methanol and synthetic natural gas as its products, resulting in an annual income of €687m and annual operating expenses of €452m. The pre-tax profit was calculated at €234m, and at the end of the project, the net present value was calculated as €1.9b with a profitability index of 4.7€/€. The expected payback time of this process was ca. 4 years, and with a 35% internal rate of return (IRR). Most importantly, this process consumed 42.8m tonnes of CO2 annually. The sensitivity analysis revealed that variations in operation time, green hydrogen price, and products’ prices significantly impacted the profitability of the process. Overall, this techno-economic analysis demonstrated that switchable catalysis in greenhouse gas utilisation processes is profitable, and thus it could play an important role in achieving net zero emissions. |
Agencias financiadoras | School of Chemistry and Chemical Engineering Doctoral College of the University of Surrey |
Cita | Merkouri, L.P., Mathew, J., Jacob, J., Ramírez Reina, T. y Duyar, M.S. (2023). Switchable catalysis for methanol and synthetic natural gas synthesis from CO2: A techno-economic investigation. Journal of CO2 Utilization, 79, 102652. https://doi.org/10.1016/j.jcou.2023.102652. |
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