Method for treating vertical tubes in a chemical reactor
US8753452B2 · kind B2 · utility
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12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2008 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and method for removing particles, such as catalyst, from a chemical reactor tube by inserting a hollow tube body into the bottom end of a vertical tube, sealing between the hollow tube body and the vertical tube, blowing a gas through the hollow tube body into the bottom of the vertical tube, and vacuuming the top of the vertical tube while continuing to introduce gas into the bottom of the vertical tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.