THE POWER INDUSTRY
Since the early 1970’s, STEBBINS’ reinforced concrete Semplate construction and Semplate lined mild steel have been used in first generation wet Flue Gas Desulphurization (FGD) units. Initially Semplate FGD units replaced plastic, resinous and rubber lining, and more recently expensive High Nickel Alloy. We currently have six wet FGD units operational from 1984, and a reference listing topping 50,000MW of installations.
Our wet FGD vessels have withstood fires that have decommissioned other units; can manage free chloride levels that the highest-grade Nickel alloys cannot; provide durability against mechanical/physical abuse, and allow heavy equipment entrance for cleanout; and support equipment and building loads reducing CapEx and plant footprint.
STEBBINS also builds and lines other plant equipment from simple sumps/trenches to agitated slurry vessels. Similar equipment in water/wastewater and coal preparation plants have been built, including wet/dry silos to resist abrasion and corrosion. Based on this history and the above accomplishments and features, STEBBINS designed and built the amine SO2/CO2 scrubbers at the SaskPower BD3 Carbon Capture and Storage (CCS) project. These units are designed for very high free Fluorides as well as large operational loads due to the internals. We are currently working on several projects that will support Gas to Gas Heat Exchanger System (GGH) and/or chimneys on STEBBINS’ structural vessels.