METHOD AND DEVICE FOR DEHYDRATING A CO2 CONTAINING GAS

摘要

Proposed is a method for dehydrating a CO2 containing gas (1) by cooling the gas (1) and separating the condensed water from the gas (1), wherein the gas is contacted with liquid CO2 to condense water contained in the gas (1) and the condensate is separated from the remaining gas. Further, a device for dehydrating a CO2 containing gas is proposed, comprising a gas feeding system for feeding the gas which has to be dehydrated, wherein the device comprises a CO2 feeding system for feeding liquid CO2, a contacting device (C) for contacting the gas and the liquid CO2 for cooling the gas (1) to condense the water contained in the gas (1), and which comprises a first separator (4) for separating the condensate from the remaining gas.

主权项

1. A method for dehydrating a CO2 containing gas by
cooling the gas (1) and separating the condensed water from the gas (1), wherein the gas (1) is contacted with liquid CO2 for cooling the gas (1) to condense water contained in the gas (1) and the condensate is separated from the remaining gas, and wherein the remaining gas which comprises gaseous CO2 is expanded to condense water contained in the gas, and the thus obtained liquid phase comprising liquid CO2 water (10) and, optionally, hydrates is separated from the dehydrated gas.