Gas dehydrator and method of using same
AssigneeCameron International Corporation
InventorsGary W. SAMS, Luis Eduardo CAIRES-FERNANDEZ, Glen Andrew HAY, Meng SHI, Robert DOUGLASS
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Abstract
Systems and methods presented herein generally relate to recycling, or reducing flaring or venting, of vent gases from glycol based dehydration of natural gas. Some systems and methods use high pressure gas, high pressure glycol, or pump-assisted high pressure glycol to provide motive energy to draw reflux gas and/or skimmer gas through one or more venturis and back to the contact tower of the dehydration system. Some systems and methods provide for harvesting energy from the dehydration process. WO
Claims15
A method for dehydrating natural gas, the method comprising routing vented gas from a glycol regeneration process to an inlet of a contact tower absorber.
A system for dehydrating natural gas comprising:
- a contact tower absorber having an inlet;
- and
- means to reroute gas vents from the system back to the inlet of the contact tower absorber.
A glycol based dehydration system comprising
- a contact tower, wherein in use, wet gas enters the contact tower and is dehydrated by glycol flowing through the contact tower, and water-rich glycol exits the contact tower;
- a glycol reconcentration system configured to filter and heat the water-rich glycol to produce purified glycol;
- and
- one or more venturis, wherein in use, reflux vent and/or skimmer gases are drawn through the one or more venturis to the contact tower.
A glycol based dehydration system comprising:
- a contact tower, wherein in use, wet gas enters the contact tower and is dehydrated by glycol flowing through the contact tower, and water-rich glycol exits the contact tower;
- a glycol reconcentration system configured to filter and heat the water-rich glycol to produce purified glycol;
- and
- an energy exchange pump.
A glycol based dehydration system comprising:
- a contact tower, wherein in use, wet gas enters the contact tower and is dehydrated by glycol flowing through the contact tower, and water-rich glycol exits the contact tower;
- a glycol reconcentration system configured to filter and heat the water-rich glycol to produce purified glycol,
- the glycol reconcentration system comprising one or more venturis;
- and
- system controls configured to improve gas recovery, achieve steady state operation, and/or avoid undesirable operating modes.
Dependencies are inferred from the claim text.