Method for starting up a cryogenic air separation unit and associated air separation unit
US12061045B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Mar 26, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2245/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a process for starting up an air separation unit, which is at a temperature of above 0° C., the air separation unit comprising a main air compressor for compressing the feed air, a booster driven by a turbine and a venting conduit connected downstream of the booster and upstream of the main heat exchanger wherein in order to start up the air separation unit, once the turbine is operating at said given speed, the venting conduit is opened to send at least part of the air compressed in the booster from the booster outlet to the atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.