FLUID CATALYTIC CRACKING APPARATUS AND METHODS FOR CRACKING HYDROCARBONS

摘要

Methods and FCC apparatuses are provided for cracking hydrocarbons. An FCC apparatus includes a riser with a riser outlet positioned within a reactor catalyst collection area. A stripper is coupled to the reactor catalyst collection area, where the riser extends through the stripper, and where the stripper includes a stripper exterior wall. A sleeve is positioned within the stripper between the riser and the stripper exterior wall.