Evaporative process for the regeneration of aqueous glycol solut

Details Evaporative process for the regeneration of aqueous glycol solut Evaporative process for the regeneration of aqueous glycol solut

1997-12-29

1999-09-28

Smith, Duane S.

Gas separation: processes

Liquid contacting

And degasification of a liquid

95169, 95170, 95186, 95191, 95207, B01D 4700

Patent

active

059581107

ABSTRACT:
A low temperature process for the dehydration of aqueous glycol solutions using an induced airflow (3) and low temperature thermal sources (4, 21) to reduce the water concentration in aqueous glycol solutions (22). The invention utilizes the ability for air to evaporate water at low vapor pressures and corresponding low vapor temperatures in a direct contacting device (5). The relative vapor pressures of glycol to water at low temperatures assures the preferential vaporization rate of water over that of glycol thereby providing dehydration and effective regeneration of aqueous glycol solutions.

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