Process for separating ethanol having low acid
US8440866B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 3, 2011 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Jan 13, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for operating a distillation column to separate an ethanol mixture comprising ethanol and acetic acid where the recovered ethanol comprises less than 700 wppm acetic acid. The operating conditions for the column may vary depending on the fed composition. In particular the process provides energy efficient recovery of ethanol with low concentration acetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.