Apparatus, process and pressure reactor for the treatment of solids with pressurized liquid gases
US6416621B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Sep 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/1943
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a process for the treatment of solids with pressurized liquid gases, in particular liquid ammonia, with which the to be treated solid is fed into a pressure reactor at atmospheric pressure. Subsequently the pressurized liquid gas is fed to the pressure reactor and after a pre-set dwell time the resultant liquid gas/solid mixture is expanded explosion-like into an expansion tank. With this at least two reactors are operated in a time-staggered manner. Furthermore an apparatus is described for the treatment of solids with pressurized liquid gases, which comprises at least two parallel arranged pressure reactors for the alternating taking in of a solid and a liquid gas, which each have inlet and outlet openings for the solid provided with shut-off elements as well as each at least one inlet opening for the liquid gas, at least one expansion tank which is connected to the respective pressure reactors, and conveying means for feeding the solid as well as the liquid gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.