Abstract
In order to mitigate substantially the atmospheric CO 2-peak, responsible for the greenhouse effect, it is proposed to sequester carbon dioxide (CO 2) from coal fired and oxygen blown gasifier combined cycle power generation plants (GuD) and to store it in the form of CO 2-dry ice in huge, thermally insulated, repositories in their vicinity to delay the emission of CO 2 into the atmosphere. It is estimated that a sphere of CO 2-dry ice, with a radius of 200 m and properly insulated by a 2 m thick layer of insulating material, will sublimate half of its mass in a time span of about 800 years. Since the recovery time of the atmosphere due to an anthropogenic surplus of CO 2-inventory is much shorter than this time interval (about 200 years), the atmospheric CO 2-peak, the scientific community is afraid of, will be delayed and dampened drastically. One such an ice-repository has to be erected if 6.4 GWy el will have to be produced corresponding to the effective cumulative electricity production of about 10 GuD-power plants à 300 MW el in 3 years each working at a load factor of 0.7.
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