Hydrogen isotope water separation system and method

Abstract

The hydrogen isotope water separation system comprises a raw material water storage tank, a light isotope water storage tank, a medium-abundance hydrogen isotope water storage tank, a heavy isotope water storage tank, a buffer tank, a circulating pump, two water absorption bed groups and at least one separation column, a feed port of each separation column is communicated with a water outlet pipe of the raw material water storage tank and a gas outlet of the circulating pump, the water absorption bed group comprises two molecular sieve beds, the light isotope water storage tank and each molecular sieve bed are communicated with a discharge port of each separation column, and a dew-point meter is arranged on the discharge port of each separation column. The medium-abundance hydrogen isotope water storage tank is communicated with a water outlet in the first water absorption bed group, the heavy isotope water storage tank is communicated with a water outlet in the second water absorption bed group, steam outlets of the two molecular sieve beds in the same water absorption bed group are connected in parallel and then are respectively communicated with the buffer tank through a collecting pipe, and a gas injection pipe is arranged on the buffer tank; an air inlet of the circulating pump is communicated with the buffer tank. According to the invention, the cost of hydrogen isotope water separation is reduced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a hydrogen isotope water separation system and method. Background technique [0002] Hydrogen isotope water includes light water (H 2 O), heavy water (D) 2 O) and tritium water (T 2 O) and the corresponding combined forms (HDO, HTO, DTO). Heavy water with high deuterium content (D 2 O) has extremely important uses, heavy water can be used as a moderator in nuclear reactors, reduce the speed of neutrons, and control the process of nuclear fission; heavy water is a valuable tracer material in the study of chemical and physiological changes, such as the ability to measure water Metabolic processes in plants and animals; in addition, NMR analysis, if the research object is hydrogen, also uses heavy water as a solvent. In addition, tritium is an important strategic material, and the separation and recovery of tritium from tritium water has important economic value and mil...

AI Technical Summary

Problems solved by technology

However, the industrial application of the water / hydrogen dual-temperature exchange method has the following problems: on the one hand, the cooling tower must use expensive platinum-based hydrophobic catalysts as fillers, and the system construction cost is high; on the other hand, the exchange reaction of water / hydrogen isotopes Including two continuous processes of liquid-phase catalytic exchange and vapor-phase catalytic exchange, the control of parameters such as temperature and flow is more complicated

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