Hydroprocessing reactor with extended operating life
US4380529A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 1981 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | May 8, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/0492
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is for a fixed bed reactor with two phase gas and liquid flow. The reactor has at least one auxiliary bed of solid particles disposed above the main bed of solid particles. The auxiliary bed has separate liquid and gas bypasses comprised of hollow tubing extending through the auxiliary bed to a distributor tray. A liquid layer on the tray provides a liquid seal above the liquid bypasses, thereby preventing gas from bypassing along with the liquid. This feed arrangement allows for a low pressure drop bypassing of the auxiliary bed, when the auxiliary bed becomes fouled and clogged. The invention is also applicable to other apparatuses which use a flow arrangement similar to fixed bed reactors, but which do not necessarily utilize a chemical reaction. One example of such apparatus is a packed absorption tower having co-current downflow of gas and liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.