Loading sleeve and method for loading chemical reactor tubes
US8336586B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2009 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Oct 26, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00752
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A loading sleeve and method for loading pellets into chemical reactor tubes where the length of the loading sleeve is greater than the clearance above the upper tube sheet. The loading sleeve includes a rigid upper sleeve portion and a rigid lower sleeve portion extending downwardly from the upper sleeve portion and means for holding the upper and lower sleeve portions together in both an aligned position, in which their longitudinal axes are aligned, and in an unaligned position, in which the longitudinal axes are at a substantial angle relative to each other. The method includes bending the loading sleeve at a hinge means, inserting the lower portion of the loading sleeve into the chemical reactor tube, then straightening the loading sleeve and inserting the upper sleeve portion into the chemical reactor tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.