Hierarchically Porous ZSM-5/SBA-15 Zeolite: Tuning Pore Structure and Acidity for Enhanced Hydro-Upgrading of FCC Gasoline
Hierarchically Porous ZSM-5/SBA-15 Zeolite: Tuning Pore Structure and Acidity for Enhanced Hydro-Upgrading of FCC Gasoline
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DOI：
10.1021/acs.iecr.8b02952
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发表时间：
2018-10
影响因子：
4.2
通讯作者：
Yipin Lv;Xilong Wang;Daowei Gao;Xinlong Ma;Shuna Li;Yong Wang;Guolong Song;A. Duan;Guozhu Chen-Guo
中科院分区：
文献类型：
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作者：
Yipin Lv;Xilong Wang;Daowei Gao;Xinlong Ma;Shuna Li;Yong Wang;Guolong Song;A. Duan;Guozhu Chen-Guo
催化剂的孔结构和酸位是影响催化裂化汽油加氢改质的主要因素。本文报道了具有可调孔结构和酸位的ZSM-5/SBA-15复合分子筛的一般合成。系统地研究了这些催化剂的孔结构和酸位对其加氢升级性能的影响。介通道短、Co-Mo-S相适宜、酸性适宜的血小板型CoMo/AZS-PL （CoMo/ZS-PL-γ-Al2O3）催化剂表现出优异的研究辛烷值（RON）保存能力和加氢脱硫性能，优于CoMo/AZS-SR （CoMo/ZS-SR-γ-Al2O3）、CoMo/AZS-HP （CoMo/ZS-HP-γ-Al2O3）和CoMo/AZS-LR （CoMo/ZS-LR-γ-Al2O3）催化剂。研究了催化剂的理化性质（酸度、形貌、孔隙结构和硫化活性金属）与其异构化（ISO）、芳构化（ARO）和HDS之间的关系。
The pore structure and acid sites of the catalysts are demonstrated as the main factors for the hydro-upgrading of fluid catalytic cracking (FCC) gasoline. Herein, we report a general synthesis of ZSM-5/SBA-15 composite zeolites with tunable pore structure and acid sites. The effects of the pore structure and acid sites of these catalysts on their hydro-upgrading performance were systematically investigated. The platelet CoMo/AZS-PL (CoMo/ZS-PL-γ-Al2O3) catalyst with the short mesochannels, appropriate Co–Mo–S phase, and suitable acidity exhibited the excellent preservation ability of research octane number (RON) and hydrodesulfurization (HDS) performance, which was better than those of CoMo/AZS-SR (CoMo/ZS-SR-γ-Al2O3), CoMo/AZS-HP (CoMo/ZS-HP-γ-Al2O3), and CoMo/AZS-LR (CoMo/ZS-LR-γ-Al2O3) catalysts. The relationship between the physicochemical properties (acidity, morphology, pore structure, and sulfided active metal) of the catalysts and their isomerization (ISO), aromatization (ARO), as well as HDS abi...