Monomethyl paraffin adsorptive separation process
US6670519B1 · kind B1 · utility
4Cited by
9References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Oct 15, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/202
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The amount of the adsorbent needed to recover a set quantity of monomethyl branched C10-C15 paraffins from a mixture comprising normal paraffins and other nonnormal hydrocarbons such as di-isoparaffins, di-isoolefins, naphthenes and aromatics by simulated moving bed adsorptive separation is reduced by adjusting three operating factors: percentage recovery of the paraffin, operating temperature and cycle time. This reduces the capital cost of the process. The recovered monomethyl hydrocarbons may be used to form a monomethyl branched alkylaromatic hydrocarbon useful as a detergent precursor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.