Multi-stage series continuous rectification separation apparatus for light hydrogen molecular water and method

A technology for the separation of light hydrogen molecular water and rectification, which is applied in the field of stable isotope separation, can solve the problems of restricting the market and application of stable isotope products, the inability to couple and utilize heat, and the small isotope separation coefficient, so as to simplify the structure and shorten the equilibrium time , the effect of simple operation

CN105399165AInactive Publication Date: 2016-03-16上海艾库环境工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-03-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A multi-stage series continuous rectification separation apparatus for light hydrogen molecular water and a method are disclosed. The apparatus is composed of more than one stages of rectifying towers in serial connection. The operation pressure in all stages of rectifying towers is reduced stage by stage from front to back. After being gasified by a vaporizer, natural water enters first stage rectifying tower, and continuously flows in all stages of the rectifying towers stage by stage for rectification separation, and by utilizing the vapor pressure difference between light hydrogen and heavy hydrogen isotopes, the rising vapor-phase material in each stage of the rectifying tower is fully contacted with the decreasing liquid-phase material, the mass transfer process of vaporization and condensing continuously happens, light hydrogen isotope enters the vapor phase stage by stage, and heavy hydrogen isotope enters the liquid phase stage by stage, so that the abundance of light hydrogen isotope in the vapor-phase material is improved stage by stage, and finally light hydrogen molecular water is discharged from a cooler. By adjusting the ratio of the final-stage product to the backflow liquid, the light hydrogen molecular water with the light hydrogen abundance of 99.9999-99.9865% can be obtained. The apparatus possesses the advantages of high separation efficiency, low energy consumption, simple structure and easy operation, and is suitable for continuous production of light hydrogen molecular water.
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Description

technical field

[0001] The invention relates to the technical field of stable isotope separation, in particular to a device and method for preparing light hydrogen molecular water through multi-stage serial continuous rectification and separation of light hydrogen molecular water. Background technique

[0002] As we all know, water in nature is generally composed of 2 hydrogen atoms and 1 oxygen atom (H 2 O), but hydrogen has three isotopes with different mass numbers: light hydrogen (protium- 1 The mass of H) is 1, deuterium (deuterium- 2 H) has a mass of 2, all of which are stable isotopes; tritium (tritium- 3 H) has a mass of 3 and is a radioactive isotope. Due to the different mass numbers of hydrogen atom isotopes, water ( 1 h 2 O) molecule is called light hydrogen molecular water; the water ( 2 h 2 O) molecule is called deuterium molecular water; the water ( 3 h 2 O) molecule is called super heavy hydrogen molecular water. In natural water, the natural abunda...

Examples

Embodiment 1

[0049] Natural water is used as the raw material, and the abundance of light hydrogen isotopes in the raw water is 99.985%. The device for the continuous rectification and separation of light hydrogen molecular water by multi-stage series series is composed of two-stage vapor-liquid mass transfer rectification towers connected in series. The first stage rectification tower is filled with corrugated regular mass transfer components. Absolute pressure), the operating temperature is 71°C; the second-stage rectification column is filled with Dick's loose stack mass transfer components, the plate height is 1.5cm, the operating pressure is 50mmHg (absolute pressure), and the operating temperature is 38°C. After the natural water raw material is vaporized by the vaporizer, it enters the two-stage series rectification column group, and the vapor phase material and the liquid phase material on the mass transfer components filled in the rectification tower are fully contacted, and partia...

Embodiment 2

[0051] Natural water is used as the raw material, and the abundance of light hydrogen isotopes in the raw water is 99.985%. The device for multi-stage serial continuous rectification and separation of light hydrogen molecular water is composed of three-stage vapor-liquid mass transfer rectification towers connected in series. The first stage rectification tower is filled with corrugated regular mass transfer components. The equal plate height is 4.0cm, and the operating pressure is 600mmHg ( Absolute pressure), operating temperature 93°C; the second-stage rectification column is filled with corrugated regular mass transfer components, the plate height is 3.0cm, the operating pressure is 400mmHg (absolute pressure), and the operating temperature is 83°C; the third-stage rectification column is filled with Dick Loose stack mass transfer components, equal plate height 2.0cm, operating pressure 200mmHg (absolute pressure), operating temperature 66°C. After the natural water raw ma...

Embodiment 3

[0053] Natural water is used as the raw material, and the abundance of light hydrogen isotopes in the raw water is 99.985%. The device for multi-stage serial continuous rectification and separation of light hydrogen molecular water is composed of five stages of vapor-liquid mass transfer rectification towers connected in series. The first stage rectification tower is filled with corrugated regular mass transfer components, the height of the plate is 5.0cm, and the operating pressure is 760mmHg ( Absolute pressure), the operating temperature is 100°C; the second-stage rectification tower is filled with regular corrugated mass transfer components, the plate height is 4.0cm, the operating pressure is 600mmHg (absolute pressure), and the operating temperature is 93°C; the third-stage rectification tower is packed with regular corrugated components Mass transfer components, equal plate height 3.0cm, operating pressure 450mmHg (absolute pressure), operating temperature 86°C; the four...