石油化工高等学校学报2024，Vol.37Issue(3)：58-65,8.DOI:10.12422/j.issn.1006-396X.2024.03.008
FCC催化剂传质性能与孔结构和酸性的关联性探究
Study on the Correlation between Mass Transfer Performance and Pore Structure and Acidity of FCC Catalysts
摘要
Abstract
In order to study the correlation between the mass transfer performance of fluid catalytic cracking(FCC)catalysts and their pore structure and acidity,three semi synthetic FCC catalyst samples(CAT1,CAT2,CAT3)with different pore structure and acidity were prepared.Naphthalene,phenanthrene and acridine were selected as probe molecules to test the adsorption penetration performance of the guest molecules on the catalysts and to investigate their mass transfer performance.The ability of acid center conversion on catalysts was visualized and analyzed using super-resolution imaging technology.The results show that effective discrimination of the differential adsorption behavior of FCC catalysts for macromolecules can be achieved by selecting suitable probe molecules.The mass transfer performance of macromolecules on FCC catalysts depends on the pore structure and surface acidity of the catalysts.The use of novel macroporous matrix materials optimizes the mass transfer performance of FCC catalysts and enhances the acid on Y molecular sieves in FCC catalysts centers in FCC catalysts.The work can provide an effective solution for studying the mass transfer structure-activity relationship of FCC catalysts,and also provide theoretical guidance for the design of efficient FCC catalysts.关键词
FCC催化剂/传质/介孔/穿透曲线/酸性Key words
FCC catalysts/Mass transfer/Mesoporous/Breakthrough curve/Acidity分类
化学化工引用本文复制引用
王焕,熊晓云,郑云锋,孙祥博,关慧敏,李强,宋丽娟..FCC催化剂传质性能与孔结构和酸性的关联性探究[J].石油化工高等学校学报,2024,37(3):58-65,8.基金项目
国家自然科学基金资助项目(U20A20120,21902068) （U20A20120,21902068）
"兴辽英才计划"项目(XLYC2203165) （XLYC2203165）
中国石油天然气股份有限公司科技专项外协项目(KYWX-22-002). （KYWX-22-002）
