Patent ID: 11905963
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 8:
9. A system comprising:
an inlet flowline configured to flow a process gas;
a suction throttling valve installed on the inlet flowline, the suction throttling valve configured to control flow of the process gas through the inlet flowline;
a compressor downstream of the suction throttling valve, the compressor configured to pressurize the process gas;
an outlet flowline configured to flow the process gas from the compressor;
an anti-surge flowline branching from the outlet flowline and connected to the inlet flowline intermediate of the suction throttling valve and the compressor;
an anti-surge control valve installed on the anti-surge flowline, the anti-surge control valve configured to control flow of a first portion of the process gas from the outlet flowline through the anti-surge flowline to the inlet flowline;
a bypass flowline branching from the anti-surge flowline and connected to the inlet flowline upstream of the suction throttling valve, the bypass flowline providing an alternative flow path for a second portion of the process gas flowing through the anti-surge flowline to the inlet flowline around the suction throttling valve; and
a bypass control valve installed on the bypass flowline, the bypass control valve configured to control flow of the second portion of the process gas from the anti-surge flowline through the bypass flowline to the inlet flowline around the suction throttling valve.