Carbon Capture and Storage utilizes a number of different technologies to separate the carbon, the most common and established technology is an amine system whereby the CO2 is absorbed from the gas stream by the amine before being stripped out. The process vessels using Monoethanolamine (MEA) to separate out the CO2 are typically manufactured from carbon steel, but will require additional corrosion protection due to the high temperature corrosive environment in various parts of the process.
Since 2001, IGS has protected hundreds of amine units eliminating amine vessel corrosion mechanisms such as pitting, crevice corrosion, flow enhanced corrosion and general corrosion loss.
IGS’ High Velocity Thermal Spray (HVTS) is a robust solution that extends the life of existing or newly built amine process vessels. IGS’ HVTS cladding upgrades the existing internal vessel metallurgy to higher nobility alloys acting as a corrosion barrier.
IGS alloys meet or exceed the performance characteristics of their wrought alloy analogs. We modify high-grade alloys including Inconel® 622, Inconel® 625, Inconel® 825 and Hastelloy® C276, to provide optimal material characteristics for your specific equipment and environment. All testing and specification is carried our in-house state-of-the-art Technology Centre.
IGS carefully controls and monitors HVTS application standards through strict QC protocols and inspection procedures. In addition, IGS generates an electronic thickness record with mapped electromagnetic stand-off gauge readings on a defined reference grid across the clad area. This record is used for future inspection and verification of the internal cladding integrity. We have developed additional inspection technologies for external, on-line verification of the cladding condition by through vessel wall scanning.
The use of high nobility corrosion-resistant alloys applied with the IGS HVTS process is deemed more economical when compared to weld overlay and column replacement strategies. Recent availability and pricing issues of 316L stainless steel cladding have further positioned IGS HVTS as the number one solution to prevent MEA corrosion in major greenfield Carbon Capture and Storage projects. Non-metallic coatings are typically not considered due to aninability to reliably achieve a three-year run cycle in this corrosive environment.
IGS HVTS delivers lasting value to the asset owners and EPCs working on Carbon Capture projects. Reduced cost, application time, future maintenance, and downtime due to the elimination of recurring corrosion and maintenance requirements brings significant value measured in millions to tens of millions of dollars.