Modeling the geochemical evolution of fluids in geothermal wells and its implication for sustainable energy production

Akın, Taylan; Kargi, Hulusi

doi:10.1016/j.geothermics.2018.09.003

Cited by 17 publications

(3 citation statements)

References 25 publications

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“…Batch adsorption experiments were carried out, where about 0.1 g of the membrane was immersed into 50 mL of 20 mg L -1 adsorbate solution at the temperature of 90 °C. At first, the silicate adsorption efficiency of the membrane was studied with varying parameters of pH (3)(4)(5)(6)(7)(8)(9) and contact time (10-60 min). Then, the sample from PLTP Geo Dipa Dieng was interacted with the adsorbent in the same condition.…”

Section: Adsorption Experimentsmentioning

confidence: 99%

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Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System

Hayati

Humaida²,

Siswanta

2021

Indones. J. Chem.

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Silica scaling is a common problem in geothermal power generation facilities which inhibits electricity generation. In order to provide a solution to this problem, the removal of silicate ions using CPEG-TOMAC (Chitosan-polyethylene glycol–trioctyl methyl ammonium chloride) membrane adsorbent was investigated for geothermal brine from Geo Dipa Energy, Dieng. The process is dependent on contact time, pH, and the concentration of silicate. An adsorption batch study that used adsorbents for the geothermal brine of the Dieng Geo Dipa reactor 28A showed that CPEG TOMAC at pH 6 resulted in an adsorption capacity of 72.6 mg g–1. Furthermore, the adsorption of silicate ions onto the membrane followed pseudo-second-order kinetics and the Freundlich isotherm model.

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Section: Adsorption Experimentsmentioning

confidence: 99%

“…Silica solubility depends on many factors such as pH, temperature, and the presence of organic and inorganic matter [6]. The polymorphs of this compound, both crystalline and amorphous, have essentially constant solubility between pH 2 and 8.5 but increases rapidly from 9 onwards [7].…”

Section: ■ Introductionmentioning

confidence: 99%

Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System

Hayati

Humaida²,

Siswanta

2021

Indones. J. Chem.

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“…Recharge source, water-rock interaction, and reservoir temperature are the significant constituents of genesis analysis [5][6][7][8]. In addition, the scaling issue in geothermal wells has posed a serious limitation in the utilization of geothermal energy [9,10].…”

Section: Introductionmentioning

confidence: 99%

Geochemical Evidence Constraining Genesis and Mineral Scaling of the Yangbajing Geothermal Field, Southwestern China

Yang,

Yuan,

Chen

et al. 2023

Water

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The Yangbajing geothermal field, a renowned high-temperature geothermal resource in Tibet of southwestern China, has been utilized for power generation for several decades. To improve geothermal exploitation in the Yangbajing, genesis and mineral scaling have yet to be further revealed. In this study, hydrochemistry and D-O-Sr isotopy were employed for analyzing genesis and mineral scaling in the Yangbajing geothermal field. The geothermal waters were weakly alkaline and had a high TDS content (1400–2900 mg/L) with the Cl-Na, Cl·HCO3-Na, and HCO3·Cl-Na types. The dissolution of silicate minerals (sodium and potassium feldspars) and positive cation exchange controlled the hydrogeochemical process. The geothermal water was recharged from snow-melted water and meteoric water originating from the Nyainqentanglh Mountains and Tangshan Mountains. The geothermal waters possessed the highest reservoir temperature of 299 °C and the largest circulation depth of 2010 m according to various geothermometers. The geothermal waters can produce CaCO3 and SiO2 scaling during vertical and horizontal transport. These achievements can provide a scientific basis for the sustainable development and conservation of the high-temperature geothermal resources in Yangbajing and elsewhere.

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Assessment of geochemical modeling applications and research hot spots—a year in review

Khalidy

2021

Environ Geochem Health

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Modeling the geochemical evolution of fluids in geothermal wells and its implication for sustainable energy production

Cited by 17 publications

References 25 publications

Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System

Adsorption of Silicate Anions from Geothermal Brine Using Chitosan-Polyethylene Glycol Composite to Prevent Silica Scaling on the Dieng Geo Dipa Geothermal Energy System

Geochemical Evidence Constraining Genesis and Mineral Scaling of the Yangbajing Geothermal Field, Southwestern China

Assessment of geochemical modeling applications and research hot spots—a year in review

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