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US 2004/0035533 A1Published application
Method of vaporizing liquids by microwave heating
AssigneePraxair Technology, Inc.
InventorsWendell Isom, Prasad Apte, Arthur Holmer
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Abstract
A method for vaporizing a liquid in a microwave evaporator (19) by slowly evaporating the liquid from a liquid phase to a vapor phase below the boiling point of the liquid; and applying an effective amount of microwave generated by magnetron (21) to maintain the slow evaporation of the liquid to produce a purified liquid. The amount of liquid in the evaporator is monitored by a level transmitter (13) and controlled by a combination of controller (14) and control valves (12) and (16).
Claims10
A method for separating a polar liquid comprising
- a) introducing an effective amount of microwave energy at a depth of up to about 30 mm into the liquid below the surface of the liquid;
- b) controlling the microwave energy that is introduced into the liquid to maintain a temperature below the boiling point of the liquid;
- c) evaporating the liquid in the presence of the microwave energy while sustaining the temperature below the boiling point of the liquid to form purified vapors;
- and
- d) capturing the evaporated purified vapors.
2 more elements
A method for separating a polar liquid comprising
- a) introducing microwave energy at a depth of up to about 30 mm into the liquid below the surface of the liquid to reach the liquid's boiling point;
- b) controlling the microwave energy to near the boiling point of the liquid;
- c) evaporating the liquid in the presence of the microwave energy while sustaining the temperature below the boiling point of the liquid to form purified vapors;
- and
- d) capturing the evaporated purified vapors.
2 more elements
Dependencies are inferred from the claim text.