Description

The HDS pilot unit is a hydrotreating system specifically designed for the removal of sulfur compounds from liquid hydrocarbon feeds under hydrogenation conditions, with full compatibility for H₂S-containing streams. It enables detailed evaluation of catalyst performance, sulfur conversion efficiency, and operating parameters on feeds ranging from light distillates to heavier fractions. The unit is engineered to reproduce industrial HDS environments while remaining suitable for R&D, process optimization, and scale-up studies. The unit is built on a modular skid integrating feed handling, hydrogen supply, fixed-bed reactor(s), and high-efficiency gas–liquid separation. All wetted parts, materials of construction, and safety systems are selected to safely handle H₂S and sour hydrocarbons. Fully automated control and supervision allow stable long-duration testing, accurate sulfur mass balances, and safe operation when working with toxic and corrosive H₂S-rich effluents.