Highly efficient C6 inert vent for gas phase polyethylene production

A system for improving the efficiency in polyethylene production comprising:

• a polymerization reactor fluidly coupled to a first stage compressor;
• the first stage compressor configured to receive a stream from the polymerization reactor and create a first compressed stream;
• a cooler fluidly connected to the first stage compressor and configured to receive the first compressed stream from the first stage compressor and create a cooled stream;
• a first drum fluidly connected to the cooler with an inlet and configured to receive the cooled stream, and wherein the first drum is configured to output a first drum liquid stream via a first drum liquid outlet, to output a first drum gas stream via a first drum gas outlet, and is further configured with an indirect heat exchanger to provide additional cooling capability;
• a second compressor fluidly connected to the first drum and configured to receive the first drum gas stream from the first drum, and further configured to create a second compressed stream;
• a condenser fluidly connected to the second compressor and configured to receive the second compressed stream from the second compressor;
• and,
• a second drum fluidly connected to the condenser and configured to receive the second compressed stream from the condenser, and wherein the second drum is configured to output a second drum liquid stream via a second drum liquid outlet and to output a second drum gas stream via a second drum gas outlet.