Hi. Find some chemicals such as lime and prepare a column to absorb co2

The somewhat wet exhaust from the combined cycle power plant is acidic, thus requiring an alkaline agent to convert the CO2 to carbonates and water. There is not much research on cost-effective methods of reacting an alkaline source (found in nature, or readily available from a waste stream) with acidic, "wet" CO2. Expansion Energy LLC has received patents for a "VCCS Cycle" which uses alkaline coal ash or "red mud" to neutralize flue gas containing CO2. Natural sources might be better, especially if the alkali source is not toxic, as is coal ash and red mud. Are there any agricultural waste streams that are alkaline?