Preparation method of novel ZSM-5 zeolite nanosheet and application of novel ZSM-5 zeolite nanosheet in catalytic reaction

• Main Authors: ZHOU TIANLI, LIU YI
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a preparation method of a novel ZSM-5 zeolite nanosheet and application of the novel ZSM-5 zeolite nanosheet in catalytic reaction. Organic quaternary ammonium base and an aluminum source are adopted as reaction media to carry out hydrothermal treatment on a ZSM-5 seed crystal matrix with uniform morphology, and the ZSM-5 zeolite nanosheet is obtained through cooling, centrifuging, washing, drying and roasting. According to the method disclosed by the invention, accurate regulation and control on multiple physicochemical properties of the ZSM-5 zeolite nanosheet can be realized. The ZSM-5 zeolite nanosheet prepared by the invention has the characteristics of high length-depth ratio, good monodispersity and uniformity, smooth surface, adjustable silica-alumina ratio, high crystallinity, good hydrothermal stability, hierarchical pore structure and the like; in addition, the nanosheet has abundant B acid sites, a large specific surface area and a developed hierarchical pore structure, and