Shell Canada Products will build a project called Polaris in Scotford, which will capture approximately 650,000 tonnes of carbon dioxide annually, and another known as Atlas Carbon Storage Hub, in partnership with ATCO EnPower.
Technologies that capture carbon dioxide emissions to keep them from the atmosphere are central to the decarbonization strategies of many governments and global companies.
The first phase of Atlas will provide permanent underground storage for carbon dioxide captured by the Polaris project, Shell said.
The company said both projects are expected to begin operations towards the end of 2028. It did not disclose any financial details.
Canada's Unifor workers' union earlier this month said its members at Shell's Scotford refinery have applied for a strike vote later in June after rejecting a mediator's terms of settlement related to compensation.