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Process for the production of ethanol from an acetic acid feed and a recycled ethyl acetate feed
US9024083B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9024083-B2 |
| Application number | US-201213456515-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 26, 2012 |
| Priority date | Jul 9, 2010 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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Abstract
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The present invention produces ethanol in a reactor that comprises a catalyst composition and a feed stream comprising acetic acid and a recycled liquid stream comprising ethyl acetate. The catalyst composition comprises a first catalyst comprising platinum, cobalt, and/or tin and a second catalyst comprising copper. The crude ethanol product may be separated and ethanol recovered.
First claim
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We claim: 1. A process for making ethanol comprising: hydrogenating a feed stream in the presence of a catalyst composition in a reactor to form a crude ethanol product stream; separating at least a portion of the crude ethanol product in one or more columns to produce ethanol and a recycle stream comprising ethyl acetate; wherein the feed stream comprises a fresh acetic acid stream and the recycle stream; and wherein the catalyst composition comprises a first catalyst compr…
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Frequently asked questions
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- What does patent US9024083B2 cover?
- The present invention produces ethanol in a reactor that comprises a catalyst composition and a feed stream comprising acetic acid and a recycled liquid stream comprising ethyl acetate. The catalyst composition comprises a first catalyst comprising platinum, cobalt, and/or tin and a second catalyst comprising copper. The crude ethanol product may be separated and ethanol recovered.
- Who is the assignee on this patent?
- Zhou Zhenhua, Franjkic Iva, Jevtic Radmila, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification C07C29/141. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 05 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).