Stripping vessel for removing hydrocarbons entrained in catalyst particles

摘要

A stripping vessel for removing hydrocarbons from a catalyst and a process for removing hydrocarbons from a catalyst. In an FCC unit, the stripping vessel includes first and second stripping sections. The first stripping section includes at least one grid having a plurality of interesting members and openings therebetween. The second stripping section includes structured packing such as a plurality of ribbons. The one or more grids are spaced from the structured packing, and from each other, so as to minimize the accumulation of catalyst within the stripping vessel, preferably between about 0.91 m (3 ft) to about 1.5 m (5 ft).

主权项

1. A stripping vessel for removing hydrocarbons from catalyst, the stripping vessel comprising:
an inlet configured to receive a stream of spent catalyst particles, at least some of the spent catalyst particles comprise entrained hydrocarbons; a first stripping section, the first stripping section including at least one grid, each grid including at least one opening to allow catalyst to pass there through; a second stripping section, the second stripping section including a structured packing comprised of a plurality of ribbons, the at least one grid in the first stripping section being spaced from the structured packing of the second stripping section; and, an outlet configured to pass catalyst particles from the stripping vessel.