Production of gaseous olefins by catalytic conversion of hydroca

Details Production of gaseous olefins by catalytic conversion of hydroca Production of gaseous olefins by catalytic conversion of hydroca

1989-09-11

1990-12-25

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

585651, 585653, C10G 1105

Patent

active

049800531

ABSTRACT:
Various fractions of petroleum, including residual oils and crude oils, are catalytically converted to produce gaseous olefins, especially propylene and butylene, in fluidized or moving bed or transfer line reactors with solid, acidic catalysts in the presence of steam at a temperature of 500.degree. to 650.degree. C. and a pressure of 1.5.times.10.sup.5 Pa to 3.times.10.sup.5 Pa, with a weight space velocity of 0.2 to 20 hr.sup.-1 and catalyst-to-oil ratio of 2 to 12. Spent catalyst is continuously removed from the reactor to a regenerator where the coke is burned off and the hot catalyst is returned to the reactor. In a comparison with conventional catalytic cracking and tubular furnance pyrolysis processes, it is found that the process of the present invention produces more propylene and butylene. The total yield of the process of the present invention is about 40 percent by weight of the feedstock.

REFERENCES:
patent: 3053752 (1962-09-01), Swanson
patent: 3290405 (1966-12-01), Rosenberg
patent: 3541179 (1970-11-01), Okagami et al.
patent: 3647682 (1972-03-01), Rabo et al.
patent: 4551231 (1985-11-01), Kovach et al.
patent: 4717466 (1988-01-01), Herbst et al.

Affiliated with

Also associated with

Rating

Production of gaseous olefins by catalytic conversion of hydroca does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of gaseous olefins by catalytic conversion of hydroca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of gaseous olefins by catalytic conversion of hydroca will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1160962