沸石
催化作用
异丙醇
选择性
金属有机骨架
复合数
化学
产量(工程)
异丙基
路易斯酸
化学工程
材料科学
无机化学
有机化学
复合材料
吸附
工程类
作者
Shyam Sundar,Amit Agrawal,Bernard M. Abraham,Ramesh K. Goyal,Chandrashekar Pendem,Bipul Sarkar
标识
DOI:10.1016/j.mtchem.2022.100796
摘要
In this study, a Zn-based metal-organic framework (MOF)-zeolite composite [email protected] was synthesized for the alternative production of BTX from isopropyl alcohol (IPA). Incorporation ensured the capacity to tune the Lewis acidity at a framework level and design accessible pore structures, making composites highly attractive to be used as catalysts. The combination of monodispersed HZSM-5 zeolites on and within acidic IRMOF-1 provided the highly selective production of lower aromatics from IPA. The interaction of IPA with catalysts was investigated at different temperatures in a fixed-bed continuous flow reactor. The obtained product was analyzed using a standard test method ASTM D6730 through gas chromatography-detail hydrocarbon analyser. The results indicated that the reaction between IPA and MOF-supported zeolite occurred without substantial participation of MOFs. The maximum aromatic (BTEX) selectivity of 38.2% was achieved among all hydrocarbons at 92.3% carbon conversion. In addition, the gas yield was <20% for this catalyst system. The appropriate density of Brønsted and Lewis acidic sites and hierarchical pore structures provided the composite catalyst with outstanding aromatic selectivity yield and high stability.
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