US 8,137,631 B2 · Unit, system and process for catalytic cracking

Abstract

One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.

Claims19

Dependent claims

A fluid catalytic cracking unit, comprising:

A) a first riser adapted to receive a first feed terminating at a first reaction vessel having a first volume;
and
B) a second riser adapted to receive a second feed terminating at a second reaction vessel having a second volume, wherein the first volume is greater than the second volume;
C) a disengagement zone for receiving a first mixture comprising at least one catalyst and one or more products from the first reaction vessel, and a second mixture comprising at least one catalyst and one or more products from the second reaction vessel;
wherein the first mixture is isolated from the second mixture.

2 more elements

Dependencies are inferred from the claim text.

Unit, system and process for catalytic cracking

Life of this patent

Unit, system and process for catalytic cracking

Life of this patent

Abstract

Claims19