Brownfield Facility Expansion – LO-CAT® Trains and Gas Treating System

Evers & Sons Inc. partnered with the client to expand an existing brownfield treating facility with new equipment supporting the operation of three sulfur recovery units (LO-CAT trains) and a shared chemical storage area. In addition to the LO-CAT train systems, Evers & Sons Inc. was also responsible for the installation of all gas treating and ancillary equipment required to enhance overall plant performance.

LO-CAT Train & Chemical Storage – Key Equipment (Per Train):

• (1) Inlet gas knockout pot
• (2) Liquid full absorbers (LFA)
• (2) LFA recirculation pumps (w/pump seal pots)
• (1) Treated gas knockout pot
• (1) Treated gas knockout pump (w/pump seal pot)
• (1) Oxidizer
• (2) Absorber feed pumps (w/pump seal pots)
• (2) Overspray pumps (w/pump seal pots)
• (1) Solution heater
• (2) Process air blowers
• (1) Pressure filter
• (1) Filter box
• (2) Filtrate return pumps (w/pump seal pots)
• (3) Chemical storage tanks
• (3) Chemical pumps
• (1) Biocide tank with pump
• (1) Potassium hydroxide (KOH) storage tank with pump

Scope of Work:

• Concrete and structural installation for mechanical and electrical foundations
• Prefabrication of pipe spools and structural packages
• Field installation and pressure testing of all process piping
• Equipment setting, including grouting of all rotating equipment
• Scaffolding, coating, and insulation/jacketing

This project was designed to remove H₂S from acid gas produced by the existing amine regeneration still prior to atmospheric venting. The scope also included full balance-of-plant treating and compression installation, supporting long-term system reliability and environmental compliance.