High-temperature normal-pressure catalytic reactor suitable for mass spectrometry and application thereof

Abstract

The invention discloses a high-temperature normal-pressure catalytic reactor suitable for mass spectrometry and an application thereof. The reactor consists of a furnace body, a sample introduction pipe, a high-temperature catalyst chamber, a reaction area, a difference hole, a micropore and an air outlet pipe. When samples react in the reaction area, the sample introduction pipe is continuously inflated, the reaction area can maintain to be in a normal-pressure state, and the samples can be subjected to catalytic reaction at different temperatures by adjusting the temperature of the high-temperature catalyst chamber to generate catalysates, free radicals and intermediates, and then catalysates, the free radicals and the intermediates spread towards an ionization chamber by the micropore under the action of pressure and form a molecular beam after passing through the difference hole to enter a mass spectrum ionization chamber, thus solving the problem that the free radicals and the unstable intermediates are difficult to detect in situ during the normal-pressure catalytic reaction.

Description

technical field [0001] The invention relates to the field of catalytic furnaces, in particular to a high-temperature and atmospheric-pressure catalytic reaction furnace suitable for mass spectrometry analysis and its application. Background technique [0002] A chemical reaction carried out under the action of a catalyst is called a catalytic reaction. In a chemical reaction, some of the original chemical bonds of the reacting molecules must dissociate and form new chemical bonds, which requires a certain amount of activation energy. In some systems where chemical reactions are difficult to occur, a third substance (catalyst) that helps to rearrange the chemical bonds of the reacting molecules is added, which can reduce the activation energy of the reaction, thereby accelerating the chemical reaction and controlling the selectivity of the product. Stereo regularity. During the catalytic reaction, the rearrangement of new chemical bonds will produce a series of new substanc...

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Problems solved by technology

However, the free radicals and intermediates generated during the reaction process are easy to react with other substances under normal pressure and during the transmission process, so the kinetic information of the relevant catalytic reaction proc

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