FCC COUNTER-CURRENT REGENERATOR WITH A REGENERATOR RISER

• Main Authors: DAVYDOV, Lev, PALMAS, Paolo, SANDACZ, Michael S, FEI, Zhihao, LIPPMANN, Matthew
• Format: Patent
• Language: English; French; German
• Published: 22.07.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

A counter-current catalyst regenerator with at least two stages of counter-current contact along with a regenerator riser is proposed. Each stage may comprise a permeable barrier that allows upward passage of oxygen-containing gas and downward passage of coked catalyst into each stage, but inhibits...