Oxidant injection for improved controlled oxidation
US5484554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Aug 15, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10J2300/1625
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A selective deslagging operation is conducted in a partial oxidation reactor wherein a first predetermined portion of the reactor is selectively deslagged by derivatization while limiting derivatizing slag conditions in a second predetermined portion of the reactor. Selective deslagging can be accomplished by controlled oxidation conditions in the reactor that vary from one predetermined portion of the reactor to another. Thus, the slag present in one predetermined portion is derivatized and fluidized for removal from the reactor at a faster rate than the slag present in another portion of the reactor, which is not derivatized or is subjected to more limited derivatizing slag conditions. Derivatized slag can be differentiated from non-derivatized slag that does not flow or more limited derivatized slag that has a lower mass flow rate then the derivatized slag at conditions of controlled oxidation. The derivatized slag can then be selectively removed because it has attained a lower fluidizing temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.