Development and Catalytic Cracking Performance of Ultrastable Y Zeolite Rich in Secondary Pores  

作　　者：Li Jiaxing Wang Shengji Sha Hao Wang Juan Zhou Lingping Wang Lixia 

机构地区：[1]SINOPEC Research Institute of Petroleum Processing Co.,Ltd,Beijing 100083,China [2]Catalyst Co.,Ltd.Qilu Branch,SINOPEC,Zibo 255336,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2024年第2期13-21,共9页中国炼油与石油化工（英文版）

基　　金：the National Key R&D Program of China(2022YFA1504404);the SINOPEC Research Program(121036-5).

摘　　要：A novel ultra-stable zeolite, NSZ, rich in secondary pores was developed through the combination of gas-phase andmild hydrothermal methods. This zeolite was successfully tested in an industrial setting for the first time in the world. The porestructure characteristics of the NSZ zeolite prepared for industrial use were analyzed and characterized using BET. The resultsindicate a significant increase in the secondary pore volume of NSZ zeolite compared to the existing ultra-stable zeolite HSZ-5, which is produced through a conventional gas-phase method. The average secondary pore volume to total pore volume ratioin NSZ zeolite was found to be 58.96% higher. The catalytic cracking performance of NSZ zeolite was evaluated. The resultsshowed that the NSC-LTA catalyst, with NSZ as the active component, outperformed the HSC-LTA catalyst with HSZ-5 zeolitein terms of obtaining more high-value products (gasoline and liquefied petroleum gas) during the hydrogenated light cycle oilprocessing. Additionally, the NSC-LTA catalyst showed a significant improvement in coke selectivity.

关 键 词：GAS-PHASE ultra-stable ZEOLITE CATALYST catalytic cracking 

分 类 号：TE624.91[石油与天然气工程—油气加工工程]