Selective placement of fluid injection in a riser reactor equipped with a horizontal tee joint connection to substantially reduce back pressure in the riser reactor
US4692235A · kind A · utility
8Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | May 28, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An apparatus for reducing the pressure drop in a riser reactor equipped with a horizontal tee joint connection which uses a fluid injection means selectively located at a point juxtaposed to the connection of the horizontal and vertical tubes to prohibit fine particle catalysts from backflow down the elongated riser reactor which omission thereby provides (1) an easy upflow of catalysts and hydrocarbon vapors through the riser reactor and (2) an incentive for the flow of particles up through the elongated riser and transfer laterally to the horizontal tee joint connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.