Patent ID: 11890574
Assignee: WELDFIT LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  F | IPC B

Claim 26:
27. A system for recovering a process gas from a first volume at a first pressure to a second volume at a second pressure, the system comprising:
one or more regulation stages receiving the process gas from the first volume at the first pressure and configured to step down the first pressure to an intermediate pressure, each of the one or more regulation stages comprising a pressure control valve to step-down pressure of the process gas and comprising a heat exchanger to heat the process gas thereafter;
a gas scrubbing stage receiving the process gas from the one or more regulation stages and collecting liquid from the process gas;
one or more compression stages receiving the process gas from the gas scrubbing stage and configured to step up the intermediate pressure to a final pressure, each of the one or more compression stages comprising a compression cycle to step-up pressure; and
a discharge stage receiving the process gas from the one or more compression stages and configured to discharge the process gas at the final pressure to the second volume at the second pressure, the final pressure being equal to or greater than the second pressure,
wherein the system comprises an intermediate pressure control valve connected between the gas scrubbing stage and the one or more compression stages or connected between the one or more regulation stages and the gas scrubbing stage, the intermediate pressure control valve being configured to step-down the intermediate pressure to a lower pressure.