Geothermal compressed carbon dioxide

At the November E3 conference in Minneapolis, Dr. Martin Saar reported on the use of high pressure carbon dioxide for use in electrical power generation.  The carbon dioxide has the benefit that it can be used in formations where the temperature is less than 100 degrees C and the gas is less geologically disruptive than water used in geothermal energy.  This is a post from an IREE news brief on the subject.   Dr. Saar worked with a graduate student Jimmy Randolph on the project.  They have applied for a patent.  The carbon dioxide would be extracted from a coal or natural gas fired power plant and used to create additional energy while simultaneously sequestering the carbon dioxide.

Dr Saar and Jimmy Randolph