| abstract |
It is a kind of to be used for from the method for crude product carbon dioxide separation " heavy " the impurity such as hydrogen sulfide of for example non-condensable gas of " lightweight " impurity comprising significant quantity, including at least one heat pump cycle,, as working fluid, " lightweight " impurity is removed in caused carbon dioxide enriched gas from the separation of " heavy " impurity using from the fluid that " heavy " impurity separates.By with the also caused intermediate liquid indirect heat exchange in " heavy " impurity separates, the carbon dioxide enriched gas of carbon dioxide enriched gas or the compression being generated by it at least partly is condensed.Compared with the conventional method of " lightweight " impurity is wherein removed from CO 2 gas, total energy consumption and specific energy consumption reduce. |