Processes for the recovery of aromatic hydrocarbons from vapor gas streams
US10160701B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Dec 12, 2014 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Aug 24, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes for the recovery of aromatic hydrocarbons from one or more vent gas streams associated with an aromatic complex. The vapor streams are passed to an absorption zone in which an aromatic-selective solvent absorbs the aromatics. The aromatic-selective solvent can be processed along with other solvent extraction streams within the aromatic complex. The absorption zone may be a portion of an existing vessel or column, such as an extractive distillation column or a stabilizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.