"Experimental Determination of the Solubility of Exotic Scales at High Temperatures – Zinc Sulphide"
Abstract
“Exotic” scale materials, such as Zinc Sulfide (ZnS), Lead Sulfide (PbS) and Iron Sulfide (FeS), come as a new challenge in HP/HT reservoirs. This has led to the development of more advanced tools to predict their behavior at extreme conditions.
Solubility data for ZnS are scarce in the open literature. In order to improve the available data, we study the experimental behavior of ZnS solubility at high temperatures (up to 100°C).
The aqueous solution is analyzed using Inductively Coupled Optical Emission Spectrometry (ICP-OES) as analytical technique. The aim of this work is to develop a method for measuring the solubility of sulfides and measure the solubility at high temperatures. The experimental data are intended to be used for parameter estimation in the Extended UNIQUAC model.