Passivation of steel surface to reduce coke formation
US7056399B2 · kind B2 · utility
2Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Mar 26, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/708
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a process to treat steels, preferably carbon steel to reduce the tendency of the steel to form coke when in contact with hydrocarbons at elevated temperatures. The steel may be first reduced then treated with a mixture of compounds which further modify the reduced surface and finally the treated steel surface is cured. The treated steel has a reduced propensity to form coke when in contact with hydrocarbons particularly at higher temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.