Clean Coal????

Well Ladies and Gentlemen, I got in contact with an old friend who currently works on building powerplants. I have been seeing these commercials for clean coal and I have heard from various sources that clean coal is a scam and there is nothing clean about it. I took a little time out to try and understand what actually goes into the process that would separate coal from clean coal. Now I have only a highschool chemistry course under my belt but it was put to me in a boiled down format that I am able to understand. A coal powerplant gains its energy by having coal combust in the air to create the energy resulting in the thick black smoke dominating most images of cities during the Industrial revolution. That smoke consists of Carbon Dioxide, Sulfur, and other potentially harmful gases. Now this clean coal is clean because of the process of combustion used with the coal. Instead of using air a chemical compound that is a mixture of many gases like Nitrogen and Oxygen, clean coal combusts with pressurized oxygen. Now think back to your chemistry days of balancing equations what you put into the equation you get out of it. Now the benefit of using pure oxygen instead of air is that there is less mess in the equation. The byproducts of this clean coal combustion is CO2, Water, Sulfur (from the coal). Now first the plant will seperate and store the CO2 seperately for later disposal and the water and Sulfur Dioxide gets mixed together with some Ammonia and it precipitates out of the water as Gypsum which is used to make wallboards (and has some acoustical construction benefits). This is a great way for the Powerplants to become huge money makers because not only are they selling the energy but also the waste products. Now the kicker is the CO2 this is the dangerous or "dirty" part of the clean coal. CO2 in this concentration is incredibly harmful and it has to be stored two miles underground. Now in a lake in Africa called Tonga there was some 20,000 people killed by a CO2 leak at one of these dumpsites, so there is potnetial for great harm to occur. However if properly done and stored clean coal is one of the most effecient ways of getting energy. And ladies and Gentlemen there is plenty and plenty of coal in this world still. Leftovers from those smokey stacks of the Industrial Revolution. You never know when you are going to use something you learned in school, I think I would have done my chem teacher proud.