REFILE-COLUMN-CO2 capture cost remains barrier to clean coal: Kemp

Tue Nov 27, 2012 9:44am EST
Email This Article |
Share This Article
  • Facebook
  • LinkedIn
  • Twitter
| Print This Article | Single Page
[-] Text [+]

By John Kemp

LONDON Nov 27 (Reuters) - For the past year, 1,000 metric tonnes a day of carbon dioxide from the Archer Daniels Midland ethanol plant at Decatur have been pumped into a sandstone reservoir 7,000 feet beneath the corn fields of Macon County, Illinois.

By its first anniversary last week, the project had injected 317,000 metric tonnes of carbon dioxide (CO2), almost a third of the planned total of 1 million tonnes.

Following intensive monitoring, the U.S. Energy Department pronounced that the reservoir "is performing as expected, with good injectivity, excellent storage capacity, and no significant adverse environmental impacts."

The Illinois Basin-Decatur Project is the first industrial-scale demonstration project to inject CO2 directly into a saline aquifer in the United States. It is one part of the Energy Department's ambitious programme to cut emissions by demonstrating and commercialising technology for carbon capture utilisation and storage (CCUS).

The eventual goal is to capture most of the CO2 emitted from coal and gas-fired power plants, cement kilns, steelworks and ammonia plants, locking it away underground in depleted oil and gas fields, uneconomic coal seams, and salt water aquifers, so it is not is not released into the atmosphere.

SALINE AQUIFER   Continued...