Passivation of steel surface to reduce coke formation

Details Passivation of steel surface to reduce coke formation Passivation of steel surface to reduce coke formation

2006-06-06

2006-06-06

Yee, Deborah (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

C148S633000

Reexamination Certificate

active

07056399

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.

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