Multifunctional low-dead-volume gas-solid phase reactor suitable for various in-situ spectrum characterization

Abstract

The invention relates to a multifunctional low-dead-volume gas-solid phase reactor suitable for various in-situ spectrum characterization. The reactor comprises a reactor shell, a reactor main body and a cover body assembly, the reactor shell can be embedded in an in-situ spectrum, and a mounting groove is formed in the reactor shell; the reactor main body can be mounted on the mounting groove, a groove-shaped reaction cavity is formed in the reactor main body, and the reaction cavity is filled with a catalyst to be subjected to in-situ spectrum characterization; and a window sheet is detachably arranged on the cover body assembly. Compared with the prior art, the reactor disclosed by the invention is used for a gas-solid catalytic system and is combined with a spectrum characterization instrument to obtain structural information of a solid catalyst under real reaction conditions, important information is provided for design and development of the catalyst, the application range of the reactor is wider, only the reactor cover needs to be replaced, and the reactor has a relatively small internal dead volume; and the average retention time of the gas is short, so that the in-situ spectrum research of the gas-solid phase reaction has higher time resolution.

Description

technical field [0001] The invention relates to the technical field of instrumental analysis, in particular to a multifunctional low dead volume gas-solid phase reactor suitable for various in-situ spectral characterizations. Background technique [0002] Gas-solid phase catalytic reaction is a common type of reaction in the chemical industry. The adsorption, reaction, and desorption of gas on solid samples under reaction conditions are important steps in gas-solid phase catalytic reactions, while the molecular and atomic structures of solid samples themselves change dynamically under reaction conditions, deriving such as the formation of catalyst active centers A series of key scientific issues such as the laws of catalytic reactions, the structure-effect relationship of catalytic reactions, and the mechanism of catalyst deactivation. In situ spectroscopy can directly characterize the structural changes of catalysts or the conversion process of intermediate species, and is...

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Problems solved by technology

[0004] In order to reduce the residence time of the material, it can be realized by increasing the operating gas velocity or reducing the volume of the in-situ pool, but the operating gas velocity should not be too high, otherwise it will cause disadvantages such as increased convective heat loss and uneven temperature in the pool, so the design An in situ reactor with the lowest possible dead volume is critical

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