PIPING SYSTEMS INC.         

A major midwest refinery Sulfur Recovery Project recently completed at Piping Systems Kaukauna Facility.

These modules are designed to remove substantial amounts of Hydrogen Sulfides and Carbon Dioxide (Acid Gases) while recovering elemental Sulfur from raw natural gas. Hydrogen Sulfides and Carbon Dioxide must be removed before natural gas can be delivered to the pipeline or customers.

In this process, Amines are used to strip acid gases from the raw natural gas. Once stripped , acid gases are mixed with air in a burner, then directed into a refractory lined furnace chamber where one third of the Hydrogen Sulfides are burned to Sulfur Oxide and react with the balance of the Hydrogen Sulfides to form elemental Sulfur. The remaining gases are referred to as tailgas. Tailgas treatment is required to complete the process.

The SCOT process is used to treat the tailgases. In this process, tailgas is heated and set to react with hydrogen over a catalyst, treated with special amines, stripped, and sent to a furnace where the balance of the Sulfur is recovered.

The modules shown in the attached pictures will be broken down into shippable sections. The larger are 14' x 14' x 50' and may weigh as much as 200,000 lbs. The project will ship to a major midwest refinery where it will be installed by an owner selected contractor.

All modules will be complete with electrical, controls, steam tracing, and insulation. Modules will go through a complete pressure test and electrical checkout as well, prior to shipment.

For your next module project turn to PIPING SYSTEMS INC. for on-time, on-budget completion.