| 摘要 |
A process for removing harmful substances from a gas stream which comprises essentially carbon dioxide CO2, and also comprises substances of value, such as at least one of the gases hydrogen H2, carbon monoxide CO, nitrogen N2 or noble gases, and harmful substances such as a substance from the group of mercury, sulphur, mercury compounds or sulphur compounds, wherein a carbon dioxide condensation is performed in order to obtain liquid carbon dioxide, adsorptive removal of the harmful substances from the condensed carbon dioxide is performed to remove the harmful substances from the carbon dioxide, and a process temperature of less than -30°C but greater than -70°C is maintained.
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