Chemistry+of+Clean+Combustion

= Storing Carbon Dioxide = Carbon capture technologies are being implemented commercially as they become cheaper and more viable. However, another essential question now arises: What happens to the carbon dioxide that has been "captured" from entering the atmosphere? There are two options aside from creating a huge tank to hold it all: storing it in the ground, or under the water.

**//Geological Storage //**
This involves injecting the carbon dioxide into rock formations deep underground. Formations of impermeable shale and clay are located, and the gas is piped beneath these formations. However, carbon dioxide can theoretically escape around the "cap rock" through a number of ways, so this solution is not foolproof.

//**Ocean Storage **//
Another solution is to pipe the carbon dioxide to the bottom of the ocean (at least 1,000 meters deep). Carbon dioxide released into shallower ocean waters will decrease the pH, but this can be compensated for by adding lime. However, if it is released deep enough under pressure, the carbon dioxide will stay in liquid form and form "lakes" deep beneath the surface. Eventually, these forms will seep back into the atmosphere through diffusion. The below picture can be found at: [|http://www.martinfrost.ws/htmlfiles/april2008/carbon_capture.html] Back to Home Page