Catalytic cracking of coke producing hydrocarbons

Details Catalytic cracking of coke producing hydrocarbons Catalytic cracking of coke producing hydrocarbons

1990-03-30

1993-12-21

Morris, Theodore

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 48Q, 208118, 208159, 208160, C10G 1100

Patent

active

052718263

ABSTRACT:
A process for thermally and catalytically upgrading a heavy feed in a single riser reactor FCC unit is disclosed. A heavy feed is added to a blast zone in the base of the riser, and sufficient hot regenerated FCC catalyst is added to induce both thermal and catalytic cracking of the heavy feed. A reactive quench material, which cools the material discharged from the blast zone is added to a quench zone downstream of the blast zone, to reduce temperature at least in part by undergoing endothermic reactions in the riser. Quench liquids can be distillable FCC feeds such as gas oil, slack wax, or alcohols or ethers. The quench material is added in an amount equal to 100 to 1000 wt % of the non-distillable material in the heavy feed. A preferred catalyst, with a high zeolite content, is used which retains activity in the quench despite initial contact with the heavy feed, which tends to overwhelm conventional FCC catalysts.

REFERENCES:
patent: 3617497 (1971-11-01), Bryson
patent: 3896024 (1975-07-01), Nace
patent: 4422925 (1983-12-01), Williams et al.
patent: 4427537 (1984-01-01), Dean et al.
patent: 4764268 (1988-08-01), Lane
patent: 4818372 (1989-04-01), Mauleon et al.
patent: 4832825 (1989-05-01), Mauleon et al.

Affiliated with

Also associated with

Rating

Catalytic cracking of coke producing hydrocarbons does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalytic cracking of coke producing hydrocarbons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic cracking of coke producing hydrocarbons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-306506