Carbon dioxide separation apparatus

A carbon dioxide separation apparatus, comprising:

• an absorption apparatus;
• and
• a desorption apparatus;
• wherein the absorption apparatus includes a gas inlet for gas to be purified and a gas outlet for purified gas;
• wherein the absorption apparatus includes an absorption solvent inlet and a solution outlet;
• wherein the desorption apparatus includes a first solution inlet, an absorption solvent outlet, a hot solvent inlet and a carbon dioxide outlet;
• wherein the solution outlet is connected to the first solution inlet via a first solution conduit;
• wherein the first solution conduit includes a first heat exchanger;
• wherein the absorption solvent outlet is connected to the absorption solvent inlet via an absorption solvent conduit;
• wherein the absorption solvent conduit includes the first heat exchanger so that the first heat exchanger is configured to transfer heat from the absorption solvent conduit to the first solution conduit;
• wherein the absorption solvent conduit includes a branch to a hot solvent conduit;
• wherein the hot solvent conduit is connected to the hot solvent inlet;
• wherein the hot solvent conduit includes a second heat exchanger,
• wherein a third solution conduit branches off from the first solution conduit between the absorption apparatus and the first heat exchanger;
• wherein an end of the third solution conduit is connected to the first solution conduit downstream of the first heat exchanger or the absorption apparatus;
• wherein the third solution conduit includes a fourth heat exchanger;
• wherein the fourth heat exchanger and the gas inlet are connected via a gas conduit so that the gas to be purified is passed through the fourth heat exchanger before the gas to be purified is passed into the absorption apparatus.