Ethylene oxide purification
US11724976B2 · kind B2 · utility
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2References
9Claims
0Family size
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Key dates
| Filing date | Nov 30, 2022 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Nov 30, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D303/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved process for the recovery of high-purity ethylene-oxide water feed streams to EO purification and MEG reaction units when both are operating in EO plants that incorporate EO Stripper bypass technology, by installing a second lights stripper to exclusively degasify the diluted EO feed to the MEG reactor, thus permitting the use of additional bypassed (gasified) EO absorbate as the diluent and resulting in a substantial increase in the total amount of EO absorbate that can bypass the EO Stripper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.