Process for separating co.sub.2 from a gaseous mixture

Abstract From the Canadian patent

A GASEOUS MIXTURE" Abstract of the Disclosure, A process is disclosed for the separation of CO2 from gases containing light hydrocarbons and a relatively high proportion of CO2 comprising a two-stage fractionation procedure. In a first fractionating stage the entire, amount of C1 and C2 hydrocarbons axe separated from the gaseous mixture; the resultant bottoms fraction which, contains the C3+ hydrocarbons and CO2 is pumped to a, higher pressure and further diskilled in a second fractionating stage. During this process the head, cooling of the second fractionating stage is coupled with the bottoms heating of the first fractionating stage.