초록 ▼

Disclosed is an adsorptive ethanol drying apparatus in which microwaves are applied during the regeneration of an absorbent conducted in a continuous adsorption process for drying ethanol, so that the absorbent regeneration can be rapidly achieved at a temperature lower than that used in a conventio

Disclosed is an adsorptive ethanol drying apparatus in which microwaves are applied during the regeneration of an absorbent conducted in a continuous adsorption process for drying ethanol, so that the absorbent regeneration can be rapidly achieved at a temperature lower than that used in a conventional heating type regeneration method and within a reduced processing time, thereby being capable of allowing an efficient use of energy while improving the productivity per adsorbent mass. A method for operating the adsorptive ethanol drying apparatus is also disclosed. At an adsorption step, a vaporized ethanol azeotropic mixture is forced to pass through adsorption towers to adsorb water contained in the vaporized ethanol azeotropic mixture to an adsorbent charged in each of the adsorption towers while condensing ethanol in a storage tank. Simultaneously with the adsorption step conducted in one of the adsorption towers, microwaves generated from a microwave generating device are guided to the other adsorption tower via waveguides in accordance with a switching operation of a switching waveguide, thereby activating water adsorbed to the adsorbent in the adsorption step to allow the water to be desorbed from the adsorbent. Slight vacuum is also applied to the other adsorption tower, thereby removing the desorbed water.

대표청구항 ▼

Disclosed is an adsorptive ethanol drying apparatus in which microwaves are applied during the regeneration of an absorbent conducted in a continuous adsorption process for drying ethanol, so that the absorbent regeneration can be rapidly achieved at a temperature lower than that used in a conventio

Disclosed is an adsorptive ethanol drying apparatus in which microwaves are applied during the regeneration of an absorbent conducted in a continuous adsorption process for drying ethanol, so that the absorbent regeneration can be rapidly achieved at a temperature lower than that used in a conventional heating type regeneration method and within a reduced processing time, thereby being capable of allowing an efficient use of energy while improving the productivity per adsorbent mass. A method for operating the adsorptive ethanol drying apparatus is also disclosed. At an adsorption step, a vaporized ethanol azeotropic mixture is forced to pass through adsorption towers to adsorb water contained in the vaporized ethanol azeotropic mixture to an adsorbent charged in each of the adsorption towers while condensing ethanol in a storage tank. Simultaneously with the adsorption step conducted in one of the adsorption towers, microwaves generated from a microwave generating device are guided to the other adsorption tower via waveguides in accordance with a switching operation of a switching waveguide, thereby activating water adsorbed to the adsorbent in the adsorption step to allow the water to be desorbed from the adsorbent. Slight vacuum is also applied to the other adsorption tower, thereby removing the desorbed water. of the oil, the reduced pressure is lowered periodically below the desired pressure value, with the current switched off. 8. A device for carrying out the method as claimed in claim 1, with an oil preparation plant for drawing off the oil warmed on the housing bottom, for warming the drawn-off oil and for supplying the warmed oil, wherein in the ceiling of the housing, at least one spray device is provided which is connected to a line supplying warmed oil from the oil preparation plant. 9. The device as claimed in claim 8, wherein the spray device has a plurality of spray nozzles distributed over the ceiling and oriented toward the active part. 10. The device as claimed in claim 9, wherein the spray nozzles are designed to be adjustable.