Green synthesis method of Y zeolite with monolithic structure

Abstract

The invention relates to a green synthesis method of Y zeolite with a monolithic structure. The green synthesis method comprises the following steps: preparing a smooth sphere from kaolin, Y zeolite, HPMC powder and silicon dioxide, carrying out stacking molding, drying, carrying out high-temperature calcination, cooling, adding the product into an alkaline solution, carrying out hydrothermal reaction, washing, and drying to obtain the Y zeolite with the monolithic structure. According to the green synthesis method, the original Y zeolite is structurally modified by adopting a natural kaolin mineral and then is subjected to hydrothermal reaction with a NaOH solution, so that the newly synthesized Y zeolite is uniformly dispersed on the surface of the original Y zeolite and is connected with original zeolite particles, and the Y zeolite is in a fixed shape in a specific mold; the process is simple, the production cost is lower, and large-scale production can be realized; raw materials are rich in source and low in price, the production cost is greatly reduced, and the experimental process is green and environment-friendly.

Description

technical field [0001] The invention relates to a green synthesis method of monolithic structure Y zeolite, which belongs to the technical field of carbon capture, utilization and storage. Background technique [0002] 3D printing technology (also known as additive manufacturing technology) plays a very important role in many fields, such as aerospace, medical and material fields, and brings greater convenience to people's lives. At present, the monolithic structure zeolite is generally prepared by preparing a specific ink, and then designing the overall shape of the zeolite, and then obtaining the monolithic structural zeolite. This method is widely used in the innovation of zeolite structure, but the 3D printer itself is expensive and cannot be used on a large scale. in industrial production. [0003] 3D printing technology has made considerable contributions to the preparation of monolithic structured zeolites, but this technology is expensive, has high requirements for ...

AI Technical Summary

Problems solved by technology

At present, the monolithic structure zeolite is generally prepared by preparing a specific ink, and then designing the overall shape of the zeolite, and then obtaining the monolithic structural zeolite. This method is widely used in the innovation of zeolite structure, but the 3D printer itself is expensive and cannot be used on a large scale. in industrial production

[0003] 3D printing technology has made considerable contributions to the preparation of monolithic structured zeolites, but this technology has expensive equipment, high requirements for experimental materials, high production costs, and cannot be put into industrial production on a large scale

Zeolite itself is expensive, and the use of this technology increases the production cost, and the production capacity of a 3D printer is limited, so it cannot be put into production and application on a large scale. The digital control operation method requires specialized technicians

The ink required by 3D printing technology is in a flowing liquid state, but the flowing liquid is not easy to shape, which greatly increases the difficulty of the experiment

Disadvantages of 3D printing: (1) The resolution of the printing process needs to be improved, so if you want to get a smooth surface, post-processing such as polishing is required; (2) For large and complex structures, the molding speed of the current 3D printing process is generally relatively low; (3) Industrial-grade printers are expensive, and the initial equipment costs are high; (4) The size of the finished printing material is subject to the type of printer

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