Method for bidirectional reinforced production of heavy oxygen water and heavy water
A technology of heavy oxygen water and heavy water, applied in chemical instruments and methods, separation methods, heating water/sewage treatment and other directions, can solve problems such as insufficient utilization of deuterium, and achieve the advantages of improving yield, improving separation coefficient and reducing separation difficulty. Effect
Pending Publication Date: 2022-03-25
DALIAN UNIV OF TECH
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[0007] Aiming at the deficiencies of the existing process technology, in order to solve the problem that deuterium cannot be fully utilized in the existing process technology, the present invention provides a method for two-way intensified production of heavy oxygen water and heavy water, which improves the recovery rate of the heavy water production process and the production of heavy oxygen water. Separation efficiency of production process
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Embodiment 1
[0035] by figure 1 It is the flow chart of the first connection mode of the enrichment process of heavy hydrogen isotope and the enrichment process of heavy oxygen isotope. In this example, there are 2 dual-temperature isotope exchange cooling towers, 2 dual-temperature isotope exchange heat towers, 5 heavy water rectification towers and 5 A heavy oxygen water rectification tower, namely n=2; j=2; m=5; k=5. The deuterium isotope enrichment process and the heavy oxygen isotope enrichment process synergistically strengthen the process through 3 steps. The first step is the deuterium isotope initial enrichment process stage. In this step, two double-temperature H 2 O-H 2 S chemical exchange cooling tower C11, C12, 2 double temperature H 2 O-H 2 S chemical exchange heat towers H11 and H12, in which the operating temperature of the cooling tower is 305K and the operating pressure is 2.01Mpa. The operating temperature of the hot tower is 411K, and the operating pressure is 2.16M...
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The invention belongs to the technical field of stable isotope separation, and provides a method for bidirectional reinforced production of heavy oxygen water and heavy water. Aiming at the problems that an existing heavy water production process and an existing heavy-oxygen water production process are not high in integration degree, comprehensive utilization of deuterium is neglected and the like, a novel production process in which a heavy water production process and a heavy-oxygen water production process are coupled and synergistically enhanced is developed, and comprehensive utilization of deuterium is realized. Under the condition that the energy consumption is not changed, the recovery rate in the H2O-H2S double-temperature chemical exchange process is increased to 100%, the separation coefficient of oxygen 16 and oxygen 18 in the heavy-oxygen water rectification production process is increased, the separation difficulty is reduced, and then the yield of the heavy-oxygen water is increased.
Description
technical field [0001] The invention belongs to the technical field of stable isotope separation, and relates to a method for two-way intensified production of heavy oxygen water and heavy water to realize the comprehensive utilization of deuterium. Background technique [0002] There are five stable isotopes in natural water, among which hydrogen has two stable isotopes, namely H (protium) and D (deuterium). Oxygen has three stable isotopes, O 16 (oxygen sixteen), O 17 (oxygen seventeen), O 18 (oxygen eighteen). Natural water molecules are composed of two hydrogen atoms and one oxygen atom, among which the water molecule composed of two deuterium atoms is called heavy water; the water molecule composed of two oxygen eighteen atoms is called heavy oxygen water. Methods for the separation of stable isotopes of hydrogen and oxygen include chemical exchange, thermal diffusion, cryogenic distillation and water distillation. Among them, the water rectification method is not ...
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IPC IPC(8): C02F1/04B01D59/04
CPCC02F1/04B01D59/04
Inventor 吕文东刘宏于婉秋董宏光
Owner DALIAN UNIV OF TECH