Constant pressure gas storage in containments with mitigation for gas dissolution problems

A system for storing a gas at constant raised pressure, the system comprising:

• a main gas containment configured to receive gas from a pressurized gas manifold and to return gas to the pressurized gas manifold, and containing a hydraulic compensation liquid;
• a first pump/motor through which the hydraulic compensation liquid can enter and leave the main gas containment, wherein the hydraulic compensation liquid is in communication with a first settling volume on the other side of the pump/motor from the main gas containment;
• a first gas compressor configured to drive gas from the first settling volume back into the pressurized gas manifold;
• a second settling volume, wherein the first settling volume is in communication with the second settling volume via a second pump/motor through which the hydraulic compensation liquid can pass between the first and second settling volumes;
• a second gas compressor configured to drive gas from the second settling volume back into the first settling volume;
• a third settling volume, wherein the second settling volume is in communication with the third settling volume via a third pump/motor through which the hydraulic compensation liquid can pass between the second and third settling volumes;
• a third gas compressor configured to drive gas from the third settling volume back into the second settling volume;
• and
• an external storage volume, wherein the third settling volume is in communication with the external storage volume via a baseline pump/motor through which the hydraulic compensation liquid can pass between the third settling volume and the external storage volume;
• wherein the main gas containment is at a higher pressure than the first settling volume, the first settling volume is at a higher pressure than the second settling volume, the second settling volume is at a higher pressure than the third settling volume, and the third settling volume is at a higher pressure than the external storage volume.

A system for storing a gas at constant raised pressure, the system comprising:

• a main gas containment configured to receive gas from a pressurized gas manifold and to return gas to the pressurized gas manifold, and containing a hydraulic compensation liquid, wherein the hydraulic compensation liquid is in communication with a first settling volume;
• a first gas compressor configured to drive gas from the first settling volume back into the pressurized gas manifold;
• a second settling volume, wherein the first settling volume is in communication with the second settling volume such that the hydraulic compensation liquid can pass between the first and second settling volumes;
• a second gas compressor configured to drive gas from the second settling volume back into the first settling volume;
• a third settling volume, wherein the second settling volume is in communication with the third settling volume such that the hydraulic compensation liquid can pass between the second and third settling volumes;
• a third gas compressor configured to drive gas from the third settling volume back into the second settling volume;
• and
• an external storage volume, wherein the third settling volume is in communication with the external storage volume such that the hydraulic compensation liquid can pass between the third settling volume and the external storage volume;
• wherein the main gas containment is at a higher pressure than the first settling volume, the first settling volume is at a higher pressure than the second settling volume, the second settling volume is at a higher pressure than the third settling volume, and the third settling volume is at a higher pressure than the external storage volume;
• wherein a bottom of the first settling volume is above a bottom of the main gas containment, a bottom of the second settling volume is above the bottom of the first settling volume, a bottom of the third settling volume is above the bottom of the second settling volume, and a bottom of the external storage volume is above the bottom of the third settling volume, wherein the hydraulic compensation liquid must pass first rise and then fall as it passes through each of the first, second, and third settling volumes.