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The Emperor has no clothes

Over the past few months “clean coal” has received alot of attention.  ”America’s Power,” a campaign sponspored by the coal industry, has been a common sight on the television and stresses the benefits of coal-based electricity. Both presidential campaigns also ensured they drew attention to the inclusion of “clean coal” in their energy plans, even accusing the other of not sufficiently embracing the technology. Now, however, there is a new ad campaign from a consortium of environmental groups saying that “clean coal” doesn’t exist. Can that really be true?

Below is the new ad in question, part of a provocatively-titled campaign called “Reality.”


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Can Underground Coal Gasification finally make clean coal a reality?

EY-AA149C_COAL_NS_20080910151851 Can Underground Coal Gasification finally make clean coal a reality?

Critics have labeled clean coal an ever-elusive goal that is perpetually over the next horizon, kind of like the hydrogen-powered car. “Clean coal” typically refers to two types of technologies, coal gasification and carbon capture and storage. The former turns coal into a synthetic gas which is then burned in an efficient combined cycle turbine (IGCC). The latter, often discussed in conjunction with gasification, involves capturing carbon dioxide emissions from power plants, and sequestering the gas underground (CCS).  While a number of IGCC projects are being pursued, there isn’t a single one in commercial operation – same is true for carbon sequestration, despite a number of small pilot projects. Cost is the main culprit.

But India and China may have identified an approach that brings clean coal closer to reality – underground coal gasification, which sources say can be done at a significant reduction in cost compared to IGCC:

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