Patent ID: 8647414

Claim:
A device for cooling a gas which is formed by a column surrounded by a pressure shell, comprising: a column comprising at least two different chambers; the first, bottom chamber being closed at the bottom by an outlet which can be shut off by a valve, thus allowing a bath with liquid to be installed in this chamber; the first, bottom chamber also comprising a side inlet for the reducing gas; and the first, bottom chamber being closed at the top by a chamber roof and having a gas outlet; and the second, upper chamber being closed at the bottom by the chamber roof of the first chamber; the upper chamber having another side gas inlet and being closed at the top by an outlet for synthesis gas; wherein the chambers are configured so that it is possible to heat these chambers to different temperature levels and to pressurize or create a vacuum in these chambers such that different pressure levels can be set; and a hydrostatic liquid column or a siphon-like physical connection, which can be filled with liquid, is disposed between the chambers.