Process and apparatus for recovering hydrotreated hydrocarbons with two strippers
US9809763B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jun 1, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process and apparatus is disclosed for recovering hydrotreating effluent from a hydrotreating unit utilizing a hot stripper and a cold stripper. Only the hot hydrotreating effluent is heated in a fired heater prior to product fractionation, resulting in substantial operating and capital savings. The cold stripped stream from the cold stripper bottoms line may be passed directly to a diesel pool when VGO is hydrotreated in the hydrotreating reactor bypassing the product fractionation column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.