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Title: Experimental modeling of antimony sulfides-rich geothermal deposits and their solubility in the presence of polymeric antiscalants
Authors: Karaburun, Emre
Sözen, Yiğit
Çiftçi, Celal
Şahin, Hasan
Baba, Alper
Akbey, Ümit
Yeşilnacar, Mehmet İrfan
Erdim, Eray
Regenspurg, Simona
Demir, Mustafa Muammer
01. Izmir Institute of Technology
01. Izmir Institute of Technology
Harran Üniversitesi
01. Izmir Institute of Technology
01. Izmir Institute of Technology
Radboud University of Nijmegen
Harran Üniversitesi
German Research Center for Geosciences
01. Izmir Institute of Technology
Keywords: Antimony sulfide
Geothermal deposits
Issue Date: May-2022
Publisher: Elsevier
Abstract: Antimony (Sb)-rich geothermal deposits have been observed in many geothermal power plants worldwide. They occur as red-colored, sulfidic precipitates disturbing energy-harvesting by clogging the geothermal installations. In order to prevent the formation of this scale, information on its physicochemical features is needed. For this purpose, Sb-rich sulfide-based deposits were synthesized at controlled conditions in a pressurized glass reactor at geothermal conditions (135 °C and 3.5 bar). Various polymeric antiscalants with different functional groups, such as acrylic acid, sulphonic acid, and phosphonic acid groups were tested for their effect on Sb sulfide solubility. An additional computational study was performed to determine the binding energy of Sb and S atoms to these groups. The results suggest that sulfonic acid groups are the most affective. Therefore, it was concluded that these macromolecule containing sulfonic acid groups and poly (vinyl sulfonic acid) derivatives could potentially act as antiscalants for the formation of antimony sulfide.
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Photonics / Fotonik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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