Catalyst promoter for fluid catalytic cracking and preparation method thereof

• Main Authors: YAO YUAN, PANG XINMEI, YAN LIJUN, WANG QIAN, ZHU XIAOXIAO, LIU YUECI, LIU QIWU, LUO CHEN, WANG YAOWEI, LI ZHAOFEI, LI FAYONG, SHEN YIHONG, GAO XIAOHUI
• Format: Patent
• Language: Chinese; English
• Published: 06.07.2016
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a non-platinum catalyst promoter which can promote nitric oxide reduction and carbon monoxide combustion in regeneration flue gas during a regeneration process of a fluid catalytic cracking catalyst. The catalyst promoter is formed by loading an inner layer active substance and an outer layer active substance on carrier particles. The inner layer active substance is a lanthanum-cerium-aluminum ternary complex oxide represented by a formula mLa2O3-nCeO2-pAl2O3, and m: n: p =4-6:8-12:1. The outer layer active substance is a manganese-copper-aluminum ternary complex oxide represented by a formula xMnO2-yCuO-zAl2O3, and x: y: z=1-6:0-5:1. The invention also provides a preparation method of the catalyst promoter. Compared with the current catalyst promoter, the catalyst promoter has the nitric oxide removal effect higher by more than 30-40%, and has the carbon monoxide combustion-supporting effect higher by more than 10%. 本发明提供一种非铂基助催化剂，该助催化剂在流化床催化裂化催化剂的再生过程中，能够促进再生烟气中氮氧化物还原和一氧化碳燃烧。该助催化剂是在载体