Thermal cracking of heavy hydrocarbon oils

Details Thermal cracking of heavy hydrocarbon oils Thermal cracking of heavy hydrocarbon oils

1984-02-24

1984-10-16

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 48R, 208 50, 208 67, 208 72, C10G 5102, C10G 914

Patent

active

044773340

ABSTRACT:
A heavy hydrocarbon feed stock is, after being heat-treated in a first cracking zone, introduced into a second thermal cracking zone for obtaining a thermally cracked product and a pitch product. The second cracking zone has a plurality of cracking reactors which are connected in series, through which is successively passed the treated feed stock and to each of which is supplied a gaseous heat transfer medium to maintain the liquid phase therein at a temperature sufficient for effecting the thermal cracking and to strip the resulting distillable, cracked components from the liquid phase. The thermal cracking temperature in one reactor is so controlled as to become higher than that in its adjacent upstream-side reactor. The distillable, cracked components in respective reactors are removed overhead therefrom and separated into a heavy fraction and a light fraction, while the liquid phase in the downstream-end reactor is discharged therefrom for recovery as the pitch product. The light fraction is recovered as a light product oil, while the heavy fraction is fed to a third thermal cracking zone for obtaining a tar-containing product which is recycled to at least one of the reactors of the second thermal cracking zone.

REFERENCES:
patent: 2016948 (1935-10-01), Trow
patent: 2063505 (1936-12-01), Huff
patent: 2175663 (1939-10-01), Herthel
patent: 2234910 (1941-03-01), Barron
patent: 2247740 (1941-07-01), Angell
patent: 3065165 (1962-11-01), Amis et al.
patent: 3928170 (1975-12-01), Takahashi et al.
patent: 4214979 (1980-07-01), Nakahishi et al.
patent: 4264432 (1981-04-01), Gartside

Affiliated with

Also associated with

Rating

Thermal cracking of heavy hydrocarbon oils does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal cracking of heavy hydrocarbon oils, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal cracking of heavy hydrocarbon oils will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1944552