Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal Deposits

Scaling is frequently observed in geothermal fields and reduces the energy harvesting of power plants. Recently, Sb-rich deposits have developed in many fields around the world. Various polymeric macromolecules have been used as antiscalants to mitigate the formation of scale. Testing potential comm...

Full description

Saved in:
Bibliographic Details
Main Authors: Celal Çiftçi, Emre Karaburun, Serhat Tonkul, Alper Baba, Mustafa M. Demir, Mehmet İrfan Yeşilnacar
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2020/8867084
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832560291422928896
author Celal Çiftçi
Emre Karaburun
Serhat Tonkul
Alper Baba
Mustafa M. Demir
Mehmet İrfan Yeşilnacar
author_facet Celal Çiftçi
Emre Karaburun
Serhat Tonkul
Alper Baba
Mustafa M. Demir
Mehmet İrfan Yeşilnacar
author_sort Celal Çiftçi
collection DOAJ
description Scaling is frequently observed in geothermal fields and reduces the energy harvesting of power plants. Recently, Sb-rich deposits have developed in many fields around the world. Various polymeric macromolecules have been used as antiscalants to mitigate the formation of scale. Testing potential commercial antiscalants in field conditions is a tedious and costly process. The artificial synthesis of geothermal deposits in the lab is a more practical and economical way to test the performance of antiscalants. This study obtained a Sb-rich deposit by refluxing SbCl3 and Na2S·3H2O in 18 h. The product was found to be a mixture of Sb2O3 and Sb2S3. We examined the performance of antiscalants such as poly(ethylene glycol), poly(vinyl pyrrolidone), Gelatin, and poly(vinyl alcohol) of various molecular weights at 5 to 100 ppm. The formation of Sb2S3 is suppressed in the presence of the polymeric antiscalants. The dosage was found to be critical for the solubilization of Sb-rich deposits. Gelatin of 5 ppm showed the highest performance under the conditions employed in this study. While low dosages improve the concentration of [Sb3+], high dosages are required to increase the solubility of [S2-]. Moreover, the amount of deposit is reduced by 12.4% compared to the reference (in the absence of any polymeric molecules). Thus, comparatively, Gelatin shows the most promising performance among the molecules employed.
format Article
id doaj-art-fb56828bb1834f058839f830d84b2f7c
institution Kabale University
issn 1468-8115
1468-8123
language English
publishDate 2020-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-fb56828bb1834f058839f830d84b2f7c2025-02-03T01:27:59ZengWileyGeofluids1468-81151468-81232020-01-01202010.1155/2020/88670848867084Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal DepositsCelal Çiftçi0Emre Karaburun1Serhat Tonkul2Alper Baba3Mustafa M. Demir4Mehmet İrfan Yeşilnacar5Department of Materials Science and Engineering, İzmir Institute of Technology, 35430, Gülbahçe, Urla, İzmir, TurkeyDepartment of Materials Science and Engineering, İzmir Institute of Technology, 35430, Gülbahçe, Urla, İzmir, TurkeyProgram of International Water Resources, İzmir Institute of Technology, 35430, Gülbahçe, Urla, İzmir, TurkeyProgram of International Water Resources, İzmir Institute of Technology, 35430, Gülbahçe, Urla, İzmir, TurkeyDepartment of Materials Science and Engineering, İzmir Institute of Technology, 35430, Gülbahçe, Urla, İzmir, TurkeyDepartment of Environmental Engineering, Harran University, 63050 Şanlıurfa, TurkeyScaling is frequently observed in geothermal fields and reduces the energy harvesting of power plants. Recently, Sb-rich deposits have developed in many fields around the world. Various polymeric macromolecules have been used as antiscalants to mitigate the formation of scale. Testing potential commercial antiscalants in field conditions is a tedious and costly process. The artificial synthesis of geothermal deposits in the lab is a more practical and economical way to test the performance of antiscalants. This study obtained a Sb-rich deposit by refluxing SbCl3 and Na2S·3H2O in 18 h. The product was found to be a mixture of Sb2O3 and Sb2S3. We examined the performance of antiscalants such as poly(ethylene glycol), poly(vinyl pyrrolidone), Gelatin, and poly(vinyl alcohol) of various molecular weights at 5 to 100 ppm. The formation of Sb2S3 is suppressed in the presence of the polymeric antiscalants. The dosage was found to be critical for the solubilization of Sb-rich deposits. Gelatin of 5 ppm showed the highest performance under the conditions employed in this study. While low dosages improve the concentration of [Sb3+], high dosages are required to increase the solubility of [S2-]. Moreover, the amount of deposit is reduced by 12.4% compared to the reference (in the absence of any polymeric molecules). Thus, comparatively, Gelatin shows the most promising performance among the molecules employed.http://dx.doi.org/10.1155/2020/8867084
spellingShingle Celal Çiftçi
Emre Karaburun
Serhat Tonkul
Alper Baba
Mustafa M. Demir
Mehmet İrfan Yeşilnacar
Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal Deposits
Geofluids
title Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal Deposits
title_full Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal Deposits
title_fullStr Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal Deposits
title_full_unstemmed Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal Deposits
title_short Testing the Performance of Various Polymeric Antiscalants for Mitigation of Sb-Rich Precipitates Mimicking Stibnite-Based Geothermal Deposits
title_sort testing the performance of various polymeric antiscalants for mitigation of sb rich precipitates mimicking stibnite based geothermal deposits
url http://dx.doi.org/10.1155/2020/8867084
work_keys_str_mv AT celalciftci testingtheperformanceofvariouspolymericantiscalantsformitigationofsbrichprecipitatesmimickingstibnitebasedgeothermaldeposits
AT emrekaraburun testingtheperformanceofvariouspolymericantiscalantsformitigationofsbrichprecipitatesmimickingstibnitebasedgeothermaldeposits
AT serhattonkul testingtheperformanceofvariouspolymericantiscalantsformitigationofsbrichprecipitatesmimickingstibnitebasedgeothermaldeposits
AT alperbaba testingtheperformanceofvariouspolymericantiscalantsformitigationofsbrichprecipitatesmimickingstibnitebasedgeothermaldeposits
AT mustafamdemir testingtheperformanceofvariouspolymericantiscalantsformitigationofsbrichprecipitatesmimickingstibnitebasedgeothermaldeposits
AT mehmetirfanyesilnacar testingtheperformanceofvariouspolymericantiscalantsformitigationofsbrichprecipitatesmimickingstibnitebasedgeothermaldeposits