Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7233
Title: The injection of CO2 to hypersaline geothermal brine: A case study for Tuzla region
Authors: Topçu, Gökhan
Koç, Gonca A.
Baba, Alper
Demir, Mustafa Muammer
Keywords: CO2
Capture CO2
Geothermal energy
Geothermal scaling
High salinity brine
Publisher: Elsevier Ltd.
Source: Topçu, G., Koç, G., Baba, A., Demir, M.M. (2019). The injection of CO2 to hypersaline geothermal brine: A case study for Tuzla region. Geothermics, 80,86-91. doi:10.1016/j.geothermics.2019.02.011
Abstract: Scaling is a serious issue for geothermal power plants since it remarkably decreases the harvesting of energy. The reduction of pH by organic acids whose structure is close to CO2 for instance formic acid has been an effective solution for the minimization of scaling. Herein, the effect of CO2 injection on the formation of scaling particularly metal-silicates was investigated for the model case of Tuzla Geothermal Field (TGF) located in the northwest of Turkey. CO2 has an acidic character in aqueous systems because it leads to the formation of carbonic acid. The injection of 20.6 m3/s CO2 (approximately 88 ppm) to hypersaline brine of TGF is a promising green approach for both mitigation of scaling by reducing pH from 7.2 to 6.2 at the well-head and the minimization of potential corrosion compared to the use of formic acid (55 ppm).
URI: https://doi.org/10.1016/j.geothermics.2019.02.011
https://hdl.handle.net/11147/7233
ISSN: 0375-6505
1879-3576
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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