Low emissions oxidative dehydrogenation process for producing butadiene
US9650316B2 · kind B2 · utility
1Cited by
24References
15Claims
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Key dates
| Filing date | Mar 28, 2013 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Sep 3, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Butadiene is formed by dehydrogenation of butenes which are mixed with steam and oxygen then converted to butadiene by oxidative dehydrogenation over a ferritic oxide catalyst, wherein the sensible heat in the oxidative dehydrogenation reaction product is utilized along with heat produced by thermal oxidation of low value volatile products formed to reduce energy requirements and CO2 emissions. Sensible heat is utilized at high temperature for purposes of superheating feed and at somewhat lower temperatures for purposes of vaporizing feed at sequential locations in the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.