SIAD/TPI supplies CO₂ capture plants from gas streams with CO₂ content less than 80% but higher than 5% using standard and advanced amine solution absorption and stripping technologies. TPI also is developing and evaluating new technologies and adsorbents to provide more efficient, lower-cost solutions

The amine capture process

The raw gas or flue gas enters the absorption column where it comes into contact with the amine solution. The amine solution only absorbs CO₂ during this step while the unabsorbed gas is vented to the atmosphere or reused.

The rich amine solution (with CO₂) is sent to the stripping column where, through the heat provided in the reboiler, the CO₂ is separated from the solution. The CO₂ leaving the top of the stripping column reaches a purity of 99%.

The lean amine solution (without CO₂) is sent back to the absorption column to capture the CO₂ back into the raw gas. The CO₂ can be compressed or liquefied for sequestration or liquefied and further purified for food-grade quality applications.

Where Used:

• Combustion processes
• Cement kiln
• Lime kilns
• Petrochemical/chemical
• Fossil fuel power plants
• Waste and biogas processes