Process for heating the column for distillation of the C3 fraction from an FCC unit by means of a circuit of water heated by streams belonging to units placed upstream and/or downstream of the FCC unit
US10473391B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Sep 22, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4006
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention describes a process for heating the reboiler of the propane/propylene separation column situated downstream of an FCC unit and fed with the C3 cut from said FCC unit, a process consisting of heating the water in a hot water circuit by means of one or more process fluids originating from units placed upstream and/or downstream of the FCC unit and called hot fluids, one of these fluids being constituted by the overhead vapours from the fractionation column connected to the mild hydrocracking unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.