Hydrocarbon cracking

Liquid heaters and vaporizers – Indirectly heated – Separate fluid

Reexamination Certificate

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Details

C122S031100, C165S159000

Reexamination Certificate

active

06948453

ABSTRACT:
A method for controlling fouling of a heat exchanger that operates downstream of a cracking furnace by injecting liquid water upstream of the heat exchanger.

REFERENCES:
patent: 3688494 (1972-09-01), Mevenkamp et al.
patent: 3818975 (1974-06-01), Tokumitsu et al.
patent: 4244423 (1981-01-01), Thut et al.
patent: 4700773 (1987-10-01), Kehrer
patent: 5630470 (1997-05-01), Lockwood, Jr.
patent: 6032616 (2000-03-01), Jones

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