METHOD AND APPARATUS FOR COOLING A FLOW CONTAINING AT LEAST 35% CARBON DIOXIDE AND MERCURY

摘要

In a method for cooling a flow containing at least 35% carbon dioxide and at least 0.2 µg/Nm3 of mercury, the mercury being in liquid and/or gas form, the flow is cooled in a first brazed aluminium plate-fin heat exchanger (9) from a first temperature to a second temperature higher than -38.6°C to form a cold flow at the second temperature, and the flow cooled to the second temperature is cooled in a second heat exchanger (35), which is a tube and shell heat exchanger, to a third temperature lower than -38.6°C.