Quantitative analysis system for catalytic performance of ortho-parahydrogen catalyst in liquid nitrogen temperature zone

According to the liquid nitrogen temperature zone ortho-parahydrogen catalyst catalytic performance quantitative analysis system provided by the invention, two groups of fluidized beds are designed, the standard gas catalyst fluidized bed (5) is filled with more catalysts, the flow of hydrogen flowing through the fluidized bed is controlled at a lower level, and the parahydrogen content of hydrogen at an outlet can be regarded as equilibrium hydrogen at the liquid nitrogen temperature; the standard gas with known components is obtained; meanwhile, the flow of hydrogen flowing through the catalyst fluidized bed (6) can be adjusted, the requirement for quantitative analysis of the catalytic performance of different ortho-parahydrogen catalysts under different flow conditions is met, the parahydrogen content analysis unit (140) samples and analyzes sample hydrogen to obtain data related to the parahydrogen content, then the catalytic performance of the catalysts can be quantitatively evaluated, and the evaluatio