Compressor for pressurising carbon dioxide

A carbon dioxide sequestration system having:

• one or more carbon dioxide production plants,
• one or more carbon dioxide storage facilities, and
• a pipeline network connecting the production plants to the storage facilities;
• wherein the or each production plant has a source compressor which pressurizes carbon dioxide produced by the production plant and introduces the pressurized carbon dioxide to the pipeline network, each compressor including a source measuring system which determines the amount of carbon dioxide produced by the production plant, and a control system which varies the power of the source compressor depending on the determined amount of produced carbon dioxide,
• wherein the or each production plant has a carbon dioxide source storage buffer between the production plant and the pipeline network, and
• wherein the or each carbon dioxide storage facility has a storage compressor which pressurizes carbon dioxide received from the pipeline network, the storage facility injecting the pressurized carbon dioxide into a carbon dioxide storage medium.