Ethylene furnace antifoulants

Details Ethylene furnace antifoulants Ethylene furnace antifoulants

1987-08-13

1989-06-27

Sneed, H. M. S.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With prevention or removal of deleterious carbon...

208 44, 208 47, 2523892, 25238921, 25238924, 25238932, 585950, 585648, 585650, 423DIG8, C10G 916

Patent

active

048427160

ABSTRACT:
An improved method for reducing fouling and corrosion of ethylene cracking furnaces petroleum feedstocks, the improvement comprising treating the petroleum feed stock with at least 10 ppm of a combination of a phosphorous antifoulant compound and a filming inhibitor. The antifoulant compound is chosen from the group consisting of phosphite esters, phosphate esters, thiophosphite esters, thiophosphate esters and mixtures thereof, said esters being characterized by the formulas ##STR1## where X equals S or O, and R.sub.1, R.sub.2, and R.sub.3, are each independently selected from the group consisting of hydrogen, water soluble amine, alkyl, aryl, alkaryl, cycloalkyl, alkenyl, and aralkyl group provided that in at least one and not more than two of each R.sub.1, R.sub.2, and R.sub.3 are water soluble amines having partition coefficients greater than 1.0 mixed with a filming amount of at least 2-20 ppm imidazoline filming inhibitor prepared preferably from naphthenic or fatty acids and poly amines.

REFERENCES:
patent: 3189537 (1965-06-01), Carlton
patent: 3483133 (1969-12-01), Hatch et al.
patent: 3558470 (1971-01-01), Gillespie et al.
patent: 3645886 (1972-02-01), Gillespie et al.
patent: 3977981 (1976-08-01), Dunlop et al.
patent: 4024048 (1977-05-01), Shell et al.
patent: 4024049 (1977-05-01), Shell et al.
patent: 4024050 (1977-05-01), Shell et al.
patent: 4024051 (1977-05-01), Shell et al.
patent: 4105540 (1978-08-01), Weihland
patent: 4344861 (1982-08-01), Levy
patent: 4435361 (1984-03-01), DaGue
patent: 4542253 (1985-09-01), Kaplan et al.
patent: 4614600 (1986-09-01), Braddon

Affiliated with

Also associated with

Rating

Ethylene furnace antifoulants does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ethylene furnace antifoulants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ethylene furnace antifoulants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-811301