Aldehyde production process with multi-stage condensation
US9340480B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 11, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Nov 11, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/81
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydroformylation system for making aldehyde by reacting olefin with synthesis gas by way of hydroformylation is improved by multi-stage condensation of gaseous reactor effluent for providing liquid feed to a gas-liquid contact zone. The process provides for condensing and separating the gaseous reactor output stream in a plurality of successive condenser stages into gaseous condenser output streams and liquid condenser output streams having differing temperatures and feeding the recovered liquid to the gas-liquid contact zone to improve olefin recovery by stripping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.