Method of on-line coating of a film on the inner walls of...

Details Method of on-line coating of a film on the inner walls of... Method of on-line coating of a film on the inner walls of...

2005-02-08

2005-02-08

Jolley, Kirsten C. (Department: 1762)

Coating processes

Heat decomposition of applied coating or base material

C237S049000, C237S049000, C237S049000, C237S049000, C237S049000, C237S049000, C237S049000

Reexamination Certificate

active

06852361

ABSTRACT:
A method of on-line coating a coat film on the inner wall of a reaction tube in a hydrocarbon pyrolysis reactor for preventing the formation and the deposit of coke on the inner walls. This method comprises the steps of vapor depositing a mixed solution of a metal alkoxide and a chromic compound on the inner walls concurrently with introducing a carrier at a flow rate of 1-5000 kg/hr/coil at a temperature of 600-900° C. under a pressure of 0-3 kg/cm2to form a buffer layer on the inner walls; and vapor depositing a metal alkoxide as a barrier on the buffer layer; and vapor depositing an alkali metal/alkaline earth metal compound alone or mixed with metal alkoxide as a decoking layer on the barrier. A decoking layer may further be provided on the diffusion barrier.

REFERENCES:
patent: 4099990 (1978-07-01), Brown et al.
patent: 4507196 (1985-03-01), Reed et al.
patent: 4545893 (1985-10-01), Porter et al.
patent: 4692234 (1987-09-01), Porter et al.
patent: 4889614 (1989-12-01), Forester
patent: 5015358 (1991-05-01), Reed et al.
patent: 5284994 (1994-02-01), Brown et al.
patent: 5567305 (1996-10-01), Jo
patent: 6093260 (2000-07-01), Petrone et al.
patent: 6228253 (2001-05-01), Gandman
patent: 6258256 (2001-07-01), Heyse et al.
patent: 6322879 (2001-11-01), Stewart et al.
patent: 6514563 (2003-02-01), Kang et al.

Affiliated with

Also associated with

Rating

Method of on-line coating of a film on the inner walls of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of on-line coating of a film on the inner walls of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of on-line coating of a film on the inner walls of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3470169