To turn coal into liquid fuel it must be fired up to 1,000 degrees and mixed with water. Then the gas that's created is transformed into fuel that can be used in cars and jets. Unfortunately, creating CTL, as it is known, is a very intensive process requiring coal, water and cash. To wean the United States off of just 1 million barrels of the 21 million barrels of crude oil consumed daily, an estimated 120 million tons of coal would need to be mined each year. The process requires vast amounts of water, particularly a concern in the parched West. And the price of a plant is estimated at $4 billion.
[ Link: washingtonpost.com]
Does anyone notice a huge hole in this discussion of the pros and cons of coal liquification? The purpose of this new wonderful technology is to reduce our dependence on foreign oil, right? Supposedly, that will help us with our national security, help fight climate change (if we handle it right) and lead the way in our response to oil depletion. The only problems are water and financing. We have all the coal we could ever want. The article does mention in passing that the process is accomplished by heating the coal up to 1000 deg. F. However, where that energy is going to come from they don't say. Natural gas? More coal? Oil? Nuclear? Whatever is going to be used to heat the coal is either going to add back to our dependence on foreign energy and/or limit the net energy from the process, isn't it? By definition we don't have any extra fuel laying around or we wouldn't be doing this. And what about all of the energy required to catch and store all of that CO2? I'm sorry but I don't see how this is going to help.
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