Injection of antifoulants into thermal cracking process streams

Details Injection of antifoulants into thermal cracking process streams Injection of antifoulants into thermal cracking process streams

1994-09-01

1995-07-25

Pal, Asok

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With prevention or removal of deleterious carbon...

208 48R, C10G 916

Patent

active

054359040

ABSTRACT:
A method of injecting a liquid tin-containing antifoulant into a saturated hydrocarbon feed stream for a thermal cracking reactor comprises providing a first open-ended tube, a second open-ended tube which concentrically surrounds the first tube, and a third tube which concentrically surrounds the first and second tubes; passing a liquid antifoulant stream through the first tube, a dispersing gas stream through the second tube, and a hydrocarbon gas stream (preferably containing ethane and steam) through the third tube; injecting the liquid antifoulant through the open end of the first tube and the dispersing gas through the open end of the second tube into the hydrocarbon gas stream; and passing the mixture of dispersed antifoulant, dispersing gas and hydrocarbon gas into a thermal cracking reactor.

REFERENCES:
patent: 4439400 (1984-03-01), Cheng et al.
patent: 4708787 (1987-11-01), Peters et al.
patent: 4812049 (1989-03-01), McCall
patent: 4901524 (1990-02-01), Shekleton et al.
patent: 5108583 (1992-04-01), Keon
patent: 5196148 (1993-03-01), Nigrelli
patent: 5284994 (1994-02-01), Brown et al.

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