Paraffin purification method and apparatus
US8785710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | May 5, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1088
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for purifying a paraffin from a source material containing a paraffin having 2 to 6 carbon atoms and an olefin having 2 to 6 carbon atoms includes a first step of bringing the source material into contact with a silver ion-containing solution (absorption liquid) at a predetermined temperature and pressure in an absorption column 1 and recovering a non-absorbed gas not absorbed by the absorption liquid while the olefin in the source material is preferentially absorbed by the absorption liquid, and a second step of desorbing and discharging a gas component from the absorption liquid having undergone the first step at a predetermined temperature and pressure in a desorption column 2. The first step and the second step are performed continuously in parallel while the absorption liquid is circulated between the first step and the second step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.