Catalytic cracking catalyst containing NaY molecular sieve composite material and preparation method of catalytic cracking catalyst

• Main Authors: ZHAO XIAOZHENG, HU QINGXUN, CAO GENGZHEN, LIU HONGHAI, WANG JIUJIANG, XIONG XIAOYUN, ZHAO HONGJUAN, ZHANG ZHONGDONG, TIAN AIZHEN, ZHANG LI
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a catalytic cracking catalyst containing a NaY molecular sieve composite material and a preparation method of the catalytic cracking catalyst. The preparation method mainly comprises the following steps that kaolin is roasted at the high temperature and the low temperature to obtain roasted kaolin and metakaolin, after being subjected to alkali treatment, the roasted kaolinis mixed with a guiding agent and alkali liquor, after hydrothermal crystallization is conducted for a period of time, the metakaolin after acid treatment is added for continuing crystallization, filtering, washing with water and drying are conducted, and thus the NaY molecular sieve composite material is obtained. According to the method, under the situation of not additionally adding a silicon source, the crystallinity of a molecular sieve is not decreased, the ratio of silicon to aluminum is greater than 5.5, and the volume of middle-large holes of the composite material accounts for 35% orabove of the total hole v