Coke catcher
US8647415B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2012 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Jul 20, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure provides for processes including a coke catcher that may be emptied during normal operation or steam standby, thereby overcoming the deficiencies in the prior design as discussed above, the coke catchers and process flows disclosed herein protecting the secondary transfer line exchanger from foulant while not limiting the time between heater cold shutdowns. The designs consider the impact of decoking options, such as when decoking to a firebox as opposed to a decoking drum. Further, flow and cost considerations are addressed in various embodiments; for example, decoke valves are fairly expensive, and process flows disclosed herein may provide for relocation of the decoke valve to facilitate coke catcher operations while not adding an expensive valve to the overall operating flow scheme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.