BTX Plant Performance Tests (Best Practice)

For years Saudi Aramco faced rapid and chronic Claus catalyst deactivation induced by aromatics (BTX) in feed acid gas (lean<br>acid gas). This catalyst deactivation resulted in low sulfur recovery and frequent shutdowns to replace the catalyst. After<br>completing an exhaustive process selection study to identify the most cost effective solution to the problem, the company<br>proceeded with installation of regenerable activated carbon beds upstream of sulfur recovery units (SRUs) to remove<br>aromatics contaminants before they reach the converter beds.