PROCESS AND APPARATUS FOR SEPARATING A GASEOUS PRODUCT FROM A FEED STREAM COMPRISING CONTAMINANTS

摘要

The invention provides a process for separating at least part of a gaseous product from a feed stream which comprises contaminants, the process comprising : 1 ) providing (1 ) the feed stream; 2) cooling the feed stream to a temperature at which a slurry stream is formed which comprises solid contaminant, liquid phase contaminant and the gaseous product; 3) introducing the slurry stream as obtained in step 2) via a plurality of tangentially directed inlet means (3), with a small inlet angle, into an upper part of a separation device (4), thereby creating a swirl of the slurry stream which allows at least part of the gaseous product to flow upwardly and solid contaminant and liquid phase contaminant to flow downwardly; 4) removing (5) at least part of the gaseous product from the upper part of the device; and 5) removing (6) a stream comprising liquid phase contaminant from a lower part of the device. The invention further relates to a cryogenic separation device for carrying out the process according to the present invention.