A kind of ortho-parahydrogen isothermal catalytic conversion equipment and method

Abstract

The invention relates to a device and method for isothermal catalytic conversion of ortho-parahydrogen. The device includes a heat exchange conversion device, a low-temperature medium storage tank, a hydrogen storage tank and a compression assembly; the heat exchange conversion device includes a storage chamber for storing low-temperature medium and a There are multiple heat exchange channels in the cavity, and the heat exchange channels are filled with ortho-parahydrogen catalytic conversion materials, and the heat exchange channels, compression components and hydrogen storage tanks are in circulation communication; the low temperature medium storage tank is in circulation communication with the storage cavity to maintain the Liquid low-temperature medium storage; the hydrogen storage tank is used to provide hydrogen to the heat exchange channel; the compression component is used to compress the hydrogen passing through the heat exchange channel, and input the compressed hydrogen into the hydrogen storage tank. The invention can increase the heat exchange area during the catalytic conversion and ensure the continuous progress of the catalytic conversion.

Description

technical field [0001] The invention belongs to the technical field of ortho-parahydrogen conversion, and in particular relates to an isothermal catalytic conversion device and method for ortho-parahydrogen. Background technique [0002] Liquid hydrogen is an important strategic resource for the development of aerospace and hydrogen energy industries. With the development of my country's aerospace industry and the continuous advancement of the lunar exploration and fire detection program, the demand for heavy-duty rockets is increasing, and the demand for liquid hydrogen, which is the best energy source for heavy-duty rocket liquid hydrogen-liquid oxygen engines, continues to increase. [0003] Hydrogen molecules are composed of two hydrogen atoms. Due to the different spin directions of the two hydrogen nuclei, there are two states of hydrogen, positive and secondary. The nuclei of orthohydrogen spin in the same direction, and the nuclei of parahydrogen spin in the opposit...

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Problems solved by technology

However, this device directly sets the storage tank for storing a large amount of low-temperature medium and the conversion material in the same container. Under the premise that the heat exchange efficiency meets the requirements, the overall volume of the converter will inevitably be too large, which is not conducive to practical use. The catalytic conversion process is implemented and reproduced; in addition, because the converter transports the heat exchange medium through pipelines, in the same plane where the heat exchange medium contacts the hydrogen, there are many areas where the hydrogen gas does not pass through the heat exchange medium, resulting in more areas of hydrogen In a low-temperature environment, the heat exchange area of ​​the converter is insufficient, so that the overall heat exchange is insufficient, and the catalytic conversion of ortho-parahydrogen cannot be effectively realized.

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