Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention or removal of deleterious carbon...
Reexamination Certificate
2000-09-18
2009-10-20
Caldarola, Glenn (Department: 1797)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With prevention or removal of deleterious carbon...
C208S0480AA, C208S050000, C208S061000, C208S106000, C208S130000, C208S131000, C585S648000, C585S650000, C585S950000
Reexamination Certificate
active
07604730
ABSTRACT:
The invention concerns a method for reducing coking on the metal walls of a reactor cracking hydrocarbons or other organic compounds and on the metal walls of a heat exchanger placed downstream of the cracking reactor, whereby the metal surfaces coming into contact with the organic substance to be cracked are pre-treated with a water vapor stream containing at least silicon and at least a sulphur compound.
REFERENCES:
patent: 4099990 (1978-07-01), Brown et al.
patent: 4410418 (1983-10-01), Kukes et al.
patent: 4692243 (1987-09-01), Porsch et al.
patent: 5284994 (1994-02-01), Brown et al.
patent: 5565087 (1996-10-01), Brown et al.
patent: 5616236 (1997-04-01), Brown et al.
patent: 5656150 (1997-08-01), Reed et al.
patent: 5656250 (1997-08-01), Tanaka et al.
patent: 5733438 (1998-03-01), Tong et al.
patent: 5849176 (1998-12-01), Zimmermann et al.
patent: 0 540 084 (1993-05-01), None
patent: 0 654 544 (1995-05-01), None
patent: 0 671 483 (1995-09-01), None
patent: 0 698 652 (1996-02-01), None
patent: 0 770 665 (1997-05-01), None
patent: WO 95/22588 (1995-08-01), None
International Preliminary Examination Report (PCT/IPEA/409 and PCT/IPEA/416) (translated) issued for PCT/FR00/02583.
D.E. Brown et al., ACS Symp. Ser. 202 (1982) 23.
Chem. Techn. (Leipzig) 42 (1990) 146.
Brun Claude
Humblot Francis
Van Den Oosterkamp Paul F.
Woerde Harry M.
Arkema France
Caldarola Glenn
Singh Prem C.
Smith , Gambrell & Russell, LLP
Sundby, Esq. Suzannah K.
LandOfFree
Coking reduction in cracking reactors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coking reduction in cracking reactors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coking reduction in cracking reactors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4103157