LO-CAT® Trains and Balance of Plant Construction

After successfully completing the original greenfield treating facility, Evers & Sons Inc. partnered again with the client to execute an expansion project supporting the operation of two (2) sulfur recovery units (LO-CAT trains) and a common chemical storage area. In addition to the LO-CAT system installation, Evers & Sons Inc. was responsible for all associated gas treating and ancillary equipment required for the facility’s continued growth and 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 steel packages
• Field installation and pressure testing of all process piping
• Equipment setting, including grouting of all rotating equipment
• Scaffolding, coating, insulation, and jacketing

This project was designed to remove H₂S from acid gas produced in the amine regeneration still before venting to atmosphere. It also includes full gas treating and compression system installation as part of the overall balance-of-plant enhancements.