The use of amine solvents is emerging as the leading technology being considered for capture of CO2 from flue gas generated in coal-fired power stations, as part of a Carbon Capture and Storage (CCS) solution to global warming.

Amine solvent technology has been widely used for many years to capture CO2 and H2S in oil refineries and gas processing plants in order to meet fuel quality standards. Operating experience with such amine circuits has shown that a class of contaminants are formed known as Heat Stable Salts (HSS). Increased concentrations of HSS are known to result in operational problems such as:

• corrosion of process equipment
• reduced amine absorber performance due to foaming of the amine solution
• reduction in available amine capacity
• incresed maintenance costs

These problems are eliminated or greatly minimized by purification of the amine solvent to remove HSS contamination.

AmiPur®-CCS is a version of Eco-Tec's successful, proven AmiPur® product which has been designed specifically for the requirements of amine purification in circuits designed for CO2 capture in the flue gases. The Eco-Tec AmiPur®-CCS is a compact, automated, skid-mounted equipment package which is integrated into the amine circuit. It operates continuously treating a slipstream after the lean amine cooler and filter in order to remove HSS from the circuit at a sufficient rate to offset the incursion rate (build-up) of HSS. This keeps HSS at a constant low level.

AmiPur®-CCS is available in a range of standard models matched to provide the HSS removal capacity requirements for any site. Model selection and capacity requirements are determined by Eco-Tec based on data provided by the client in an engineering survey form.

AmiPur®-CCS Brochure