Hydrocarbon thermal cracking using hardfaced fittings

Details Hydrocarbon thermal cracking using hardfaced fittings Hydrocarbon thermal cracking using hardfaced fittings

2007-06-06

2009-11-10

Griffin, Walter D (Department: 1797)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S047000, C208S130000

Reexamination Certificate

active

07615144

ABSTRACT:
A thermal cracking process that employs (1) a sinusoidal conduit in the convection section of a thermal cracking furnace, (2) a cross-over conduit, and/or (3) a transfer conduit that contains at least one bend fitting, at least one bend fitting carrying a protective layer comprising a steel carrier and carbide pellets composed of submicron hard particles cemented with a metal binder.

REFERENCES:
patent: 6117493 (2000-09-01), North
patent: 6743961 (2004-06-01), Powers
patent: 7019187 (2006-03-01), Powers
patent: 2002/0043479 (2002-04-01), Heyse et al.
patent: 2005/0261530 (2005-11-01), Stell et al.

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