Sulfur Solvents and Hydrogen Sulfide Scavengers Testing

Our sulfur uptake apparatus is the first step in determining the sulfur solubility of a particular solvent under a specified set of conditions which include: solvent composition, temperature (-30 to 140 ^oC), exposure to different gases such as N₂, CH₄, H₂S, CO₂, etc., and sulfur saturation. The temperature is monitored via an internal thermocouple and heated gases can be bubbled through the solvent using a submerged frit. Sub-samples of solvent can be extracted through a dip tube or syringe. The apparatus is also equipped with a condenser and collection flask in order to study solvent regeneration at higher temperatures. This apparatus operates at atmospheric pressure; high pressure sulfur uptake work can be performed but it requires a metal autoclave system.

Scavenger uptake studies involve flowing/bubbling a gas mixture, typically H₂S and CO₂ or N₂ through a scavenger formulation in order to determine the H₂S or CO₂ capacity and uptake rates. The scavenger, inlet and outlet gases can be sampled over the course of an experiment in order to determine changes in composition. A number of different test conditions can be adjusted; these include: reaction temperature, pre-saturation of gas with water and gas composition.