Our team is performing engineer-procure-construct (EPC) services to enable multiple Midwest ethanol production facilities to recover, compress and dehydrate the carbon dioxide (CO2) vapor stream and inject it into a common pipeline in development.
The initiative was designed to support the owner’s goals for sustainability and renewable fuels.
We began with the concept of developing a carbon capture unit that standardizes design specifications for compressors, dehydration skids, auxiliary equipment and pipe spools. These cloned designs were repeated as blocks to be dropped in as carbon capture units at multiple ethanol processing facilities. The carbon capture units include multistage compressors that drive the gas stream to a triethylene glycol (TEG) dehydration skid. After the water is separated from the gas stream, the water is then returned to the ethanol or waste treatment facility, while the CO2 is pumped into a pipeline.
The CO2 capture equipment is housed in a building. The layout of the equipment is cloned, and the building can be rotated to any angle to fit within multiple site plots. The equipment is engineered to uniform specifications within each building, regardless of the site layout. As part of the front-end evaluation, the project team visited each site to generate data for the unique site characteristics. Site-specific design was required for the outside battery limits (OSBL) aspects of the project and may include geotech surveys, civil engineering and other activities to meet the requirements of individual sites.
The cloned units allow owners to minimize cost for engineering, procurement, fabrication and construction at different facilities.