System and method for removing gaseous contaminants from a methane-containing contaminated gas stream

摘要

The present invention provides a system (1) for removing gaseous contaminants from a methane-containing contaminated gas stream (10), the system (1) at least comprising:
- a separation vessel (2) having: a first inlet (21) for a stream (20) which comprises a methane-containing gas and a slurry of a contaminant; a second inlet (22) for a stream (50) comprising liquid contaminant to dilute the slurry inside the separation vessel (2); a first outlet (23) for a methane-containing gas stream (30); and a second outlet (24) for liquid contaminant (40);
- a slurry collector (3) for directing the diluted slurry inside the separation vessel (2) towards an eductor (4);
- an eductor (4) for receiving the diluted slurry collected by the slurry collector (3);
- a heat exchanger (5), wherein the inlet (51) of the heat exchanger (5) is connected to an outlet (42) of the eductor (4) and wherein the outlet (52) of the heat exchanger (5) is connected to the second inlet (22) of the separation vessel (2);
wherein during use of the system (1), the flow through the slurry collector (3), eductor (4) and into the heat exchanger (5) is substantially vertical.