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Updated: Feb 11, 2026

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
Published on: May 15, 2015
Design of a nitrogen purification system with cryogenic method for neutrino detection
Zhang Peng1, Hu Zhongjun2, Wang Bingming2
1School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
Abstract:
In order to detect the neutrino with liquid scintillation detector, high-purity nitrogen is essential for gas stripping in this detector. Therefore, it is necessary to design a purification system for the detector to purify nitrogen. Using the method of low temperature adsorption for the purification system, the key designs including the flow path, the adsorber and the selection of activated carbon, are introduced in this study. In these designs, the selection of activated carbon is the most important because the adsorption characteristic of the carbon is related to the performance of the purification system. The method of grand canonical ensemble Monte Carlo is adopted to simulate the adsorption of radon by the activated carbon with its slit pore model. Using this method, the working temperature and the key characteristic of the activated carbon are obtained.
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