Catalytic reactor charging system and method for operation thereof
US5890868A · kind A · utility
Inventor
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00752
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst loading system for utilizing catalyst from a bulk supply located adjacent but not on the upper tube sheet of a catalytic reactor and for mechanized measuring of multiple identical quantities of catalyst and for mechanized loading of catalyst pellets into the reaction tubes of the reactor to achieve even drop rate, compaction and outage of the reaction tubes. A pair of electronic vibrators are mounted to the cart framework and provide for support and vibratory movement of a vibratory tray having a catalyst feed hopper adapted to feed catalyst pellets to a plurality of generally parallel catalyst transfer troughs along which catalyst pellets are moved by vibration of the vibratory tray to a plurality of drop tubes. A compartmented hopper is fixed to the vibratory tray and controllably feeds catalyst pellets into respective catalyst transfer troughs. A plurality of charging tubes are connected to respective drop tubes by a plurality of elongate flexible tubes and are maintained in fixed, spaced relation by a structural element so as to define a charging manifold for simultaneous, timed delivery of catalyst pellets into a plurality of reactor tubes. The charging manifold whi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.