Purification of mercaptans or thiophenes using dividing wall column distillation
US10807949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Jan 19, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G29/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Aspects of the present invention relate to systems and processes for obtaining desired mercaptans or thiophenes from a feed stream containing a mixture of mercaptans, thiophenes and other components. In one aspect of the invention, a system for separating one or more components from a feed stream of mixed mercaptans includes one or more distillation columns in connection with a feed containing mercaptans, the distillation column having a rectification section, a stripping section, and a feed side section separated from a side draw section by a dividing wall that extends from the rectification section to the stripping section. The distillation column further being in connection with a condenser and a reboiler; and a distillate stream, a side drawn stream, and a bottoms stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.