Composition and reforming process for the operation of a magnetically stabilized fluidized bed
US4541920A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1983 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Apr 18, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/55
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalytic reforming process for the operation of a magnetically stabilized fluidized bed. The process utilizes catalyst compositions characterized as a particulate material which can be oriented within, and formed into a magnetically stabilized fluidized bed which comprises: (i) particles of average size ranging from about 10 micrometers (.mu.m) to about 4000 .mu.m, each containing a nonferromagnetic component and a catalytically active component composited with a single elongate ferromagnetic component or plurality of parallelly aligned elongate ferromagnetic components. The ferromagnetic component, or components, are multidomain, having dimensions of at least 1 .mu.m in all directions and a length:diameter (L/D) ratio of at least 2 but not more than 17.3, and the ferromagnetic component, or components, is present in the composite particles as inclusions within a nonferromagnetic matrix constituting at least 0.5%, preferably at least 5%, but not more than 3/2(L/D).sup.2 of the total volume of each particle, where the L/D is the ratio of the longest dimension of a ferromagnetic inclusion relative to the shortest dimension. The particles can, in said magnetically stabilized fluidi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.