Methane/carbon dioxide photo-thermal coupling dry reforming three-section type gas mixer for three paths of fluid and using method

Abstract

The invention discloses a methane / carbon dioxide photo-thermal coupling dry reforming three-section type gas mixer for three paths of fluid and a using method, and can solve the problems that a traditional gas mixer is complex in internal structure, large resistance can be generated in the mixing process, large energy loss is caused, and the mixing distance needed for achieving uniform mixing is long. The gas mixer comprises a front-end gas inlet cavity, a middle-end mixing cavity and a rear-end diffusion cavity, wherein a nozzle is arranged at a gas outlet of a second gas inlet pipe in the front-end gas inlet cavity, fluid can realize entrainment of low-pressure gas of a first gas inlet pipe and a third gas inlet pipe under the action of the nozzle, and first-step mixing of three paths of fluid is completed; the middle-end mixing cavity is provided with a first spoiler and a second spoiler so as to enable the mixed gas to form local backflow to complete homogenization of concentration, speed and the like, and then second-step mixing of the three paths of fluid is completed; and finally, the three paths of gas are further uniformly mixed in the rear-end diffusion cavity. In short, the gas mixer has the characteristics of simple structure, low energy consumption, low cost, high reliability, better mixing effect and the like.

Description

technical field [0001] The invention belongs to the technical field of gas mixing, and in particular relates to a methane / carbon dioxide photothermal coupling dry reforming three-stage gas mixer for three-way fluids and a use method. Background technique [0002] Both methane and carbon dioxide are important members of greenhouse gases, and their resource utilization is of great significance for coping with climate change and energy crisis. Dry reforming of methane and carbon dioxide is one of the classic conversion methods. It is an effective way to utilize carbon dioxide resources and is of great significance for solving the greenhouse effect and improving the energy structure. However, it is a high-temperature endothermic reaction with high energy consumption. , a large amount of external energy is needed to keep the reaction going. In recent years, photothermal synergistic catalysis has received widespread attention. After light irradiation, it was found that the reacti...

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Problems solved by technology

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a methane / carbon dioxide photothermal coupling dry reforming three-stage gas mixer for three-way fluid and its use method, in order to solve the current traditional gas mixer device The internal structure is complex, which will generate large resistance during the mixing process, resulting in a technical problem of large energy loss; and the technical problem of a long mixing distance required for uniform mixing of gases

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