Decoking process and device
US5855742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1995 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Feb 22, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/0936
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A device for drilling a layer of coke within a reactor to effect the decoking of the reactor includes a decoking tool arranged at one end of a hose for conveying a decoking fluid to the tool. The decoking tool has a first part and a second part coaxial with the first part. The second part has means for ejecting the decoking fluid against the coke layer, including a first ejection means for ejecting the fluid in a substantially axial direction downwardly to penetrate the coke layer, a second ejection means ejecting the fluid in a substantially lateral direction and a third ejection means for ejecting the fluid in a substantially upward direction to remove any coke accumulated above the tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.