Rotary reaction equipment and process suitable for high-temperature molten salt pyrolysis of biomass

By combining a rotary reaction device with supergravity technology, the problems of low mass and heat transfer efficiency and poor equipment stability in high-temperature molten salt pyrolysis of biomass have been solved. This has enabled all-round contact and efficient reaction between biomass and molten salt, improving the operational stability of the equipment and the quality of the products.

CN122273455APending Publication Date: 2026-06-26ZHEJIANG UNIV OF TECH
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Patent Information

Application Number
CN202610689675.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-19
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing high-temperature molten salt pyrolysis biomass reaction equipment suffers from problems such as insufficient contact between biomass and molten salt, low mass and heat transfer efficiency, equipment blockage, rapid wear of seals, and mechanical damage, making it difficult to achieve efficient and stable operation.

Method used

The rotary reaction equipment, made of high-temperature and corrosion-resistant materials, combines a supergravity rotating platform with a molten salt inlet to form a continuous and stable liquid film. It utilizes supergravity to enhance mass and heat transfer, and achieves all-round contact and efficient reaction through molten salt circulation regeneration and carbon deposition removal technology.

Benefits of technology

It significantly improves mass and heat transfer efficiency, reduces molten salt loss and equipment failure rate, enhances equipment stability and product quality, and is highly adaptable to high-temperature molten salt pyrolysis of biomass and other fluid reaction systems.

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Abstract

The invention discloses rotary reaction equipment and process suitable for high-temperature molten salt pyrolysis of biomass. The reaction equipment comprises a molten salt purging device, a molten salt diversion port, a compartment type molten salt tank, an integrated objective table, a nickel-based alloy net, a motor, a reaction equipment shell, a gas detection system, a temperature detection control system, a baffle and a heating layer. The equipment is made of a high-temperature-resistant and corrosion-resistant material and is suitable for a high-temperature and strong-corrosion environment; on the basis of the synergistic effect of the molten salt characteristics and the reaction device, the utilization efficiency of the molten salt is effectively improved and the mass transfer and heat transfer processes are enhanced through the remarkable thinning and updating rate of a liquid film in a supergravity environment; the pyrolysis process under different mass transfer and heat transfer efficiencies can be explored by adjusting the feeding amount of the fused salt and the rotating speed of the rotating table; the device can be expanded to reaction systems of liquid metal and the like, is relatively efficient in assembly and low in investment, and can be used for exploring the influence of mass transfer and heat transfer on products in the pyrolysis process, so that related thermodynamic and kinetic parameters are obtained.
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