A temperature swing adsorption process for dehydrating ethanol
The present invention relates to a temperature swing adsorption process for dehydrating ethanol, comprising the steps of: providing an adsorption bed (50) packed with zeolites (20) as adsorbent in an adsorption column; regenerating the adsorption bed (50) by flow of inert gas under atmospheric press...
| Main Authors: | , , , |
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| Format: | Patent |
| Language: | English English English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/44192/ http://irep.iium.edu.my/44192/ http://irep.iium.edu.my/44192/1/MY-154284-A_Ethanol_Patent.pdf http://irep.iium.edu.my/44192/2/Patent_Grant-Ethanol.pdf http://irep.iium.edu.my/44192/3/PI_2012700368.pdf |
| Summary: | The present invention relates to a temperature swing adsorption process for dehydrating ethanol, comprising the steps of: providing an adsorption bed (50) packed with zeolites (20) as adsorbent in an adsorption column; regenerating the adsorption bed (50) by flow of inert gas under atmospheric pressure at 200°C; contacting a feedstream comprising an ethanol-water mixture with the adsorption bed (50) at an adsorption temperature and a feed flow rate to produce a dehydrated ethanol; and repeating the cycle by regenerating the adsorption bed (50); characterized in that the adsorption temperature is in a range of 25-50°C and the feed flow rate is in a range of 200-600 ml/min. Said process produces ethanol with 99.5% purity and 91% efficiency of recovery. |
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