Process and apparatus for hydroprocessing with two product fractionators
US9234142B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Feb 26, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and apparatus are disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripping column and a cold stripping column. A light fractionation column fractionates naphtha from kerosene predominantly from a cold stripped stream. A heavy fractionation column fractionates diesel from unconverted oil predominantly present in a hot stripped stream. Only the hot hydroprocessing effluent is heated in a fired heater prior to entering the heavy fractionation column, resulting in substantial operating and capital savings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.