Title : Integration of Zeolite@Metal–Organic Framework: A Composite Catalyst for Isopropyl Alcohol Conversion to Aromatics
In this study, a Zn-based metal-organic framework-zeolite composite ZSM-5@IRMOF-1 was synthesised for an alternative production of BTX from isopropyl alcohol (IPA). Incorporation ensured the capacity of tuning the Lewis acidity at a framework level and designing accessible pore structures, which make 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 analysed using a standard test method ASTM D6730 through GC-DHA. The results indicated that the reaction between IPA and MOF-supported zeolite occurred without substantial participation of MOFs. The maximum aromatic (BTEX) selectivity of up to 40.8% was achieved among all hydrocarbons at 86.1% 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 an outstanding aromatic selectivity and yield and high stability.
Audience take away:
- I have synthesized a composite material using (novel surfcant for zeolite, Silica, Metal, Metal oxides, MOF) synthesis using hydrothermal, nucleation-growth, assisted techniques.
- The characterizations of composite using SEM, TEM, XPS, XRD, GCMS, N2 sorption, TGA, UV-DRS, FT-IR, and solid state NMR.
- Catalysis (Liquid phase, Gas-phase), batch and flow reactions, online monitoring by GC-MS.