CN102162106A - Method for effectively extracting heavy water - Google Patents

Method for effectively extracting heavy water Download PDF

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Publication number
CN102162106A
CN102162106A CN2010101116844A CN201010111684A CN102162106A CN 102162106 A CN102162106 A CN 102162106A CN 2010101116844 A CN2010101116844 A CN 2010101116844A CN 201010111684 A CN201010111684 A CN 201010111684A CN 102162106 A CN102162106 A CN 102162106A
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China
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hydrogen
fuel cell
oxygen
heavy water
electrolyzer
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CN2010101116844A
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Chinese (zh)
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CN102162106B (en
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朱国樑
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Priority to CN201010111684.4A priority Critical patent/CN102162106B/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Abstract

The invention discloses a method for effectively extracting heavy water. The heavy water has great application in the nuclear field and the energy field. The general extraction method has high energy consumption; and an oxyhydrogen fuel cell and an electrolytic bath are skillfully utilized in the method and complement different actions of an energy converter, so that the energy consumption for extracting the heavy water is greatly reduced. Therefore, the purposes of low energy and effective extraction of the heavy water are fulfilled.

Description

A kind of method of effective extraction heavy water
The invention relates to from former water a kind of method of effectively extracting heavy water. heavy water in the nuclear field and energy field very big purposes is arranged. still, common heavy water extracting method all needs to expend great energy. how to cut down the consumption of energy, be a very urgent task.
The present invention utilizes heavy water (D 2O) be difficult for electrolytic characteristic (with respect to light-water H 2O). in electrolytic process, hydrogen ion is reduced into hydrogen in the preferential electrolysis of negative electrode. and the heavy water in former water, along with electrolytic process continues to carry out, thereby its concentration constantly increases., reach the concentrated and purpose of separating heavy water from former water.
It is the device that electric energy converts chemical energy to that the present invention utilizes electrolyzer, hydrogen-oxygen fuel cell (calling fuel cell in the following text) then is the device that chemical energy converts electric energy to, these two complementary energy converters are combined dexterously, thereby, can reduce the energy consumption of total system effectively.
According to the second law of thermodynamics:
Spent electric energy with the relation that converts chemical energy to is in the electrolyzer: E 1==a 1Q 1... .... (1)
E in the formula 1: spent electric energy.
a 1: be efficiency of conversion. (less than 1)
Q 1: the chemical energy that converts to.
Required chemical energy with the relation that converts electric energy to is in the fuel cell: Q 2==a 2E 2... .... (2)
Q in the formula 2: required chemical energy.
a 2: be efficiency of conversion. (less than 1)
E 2: be the electric energy that converts to.
If system stability work must Q in two formulas 1==Q 2. that not, formula (2) substitution formula (1):
E 1＝＝a 1a 2E 2..........(3)
Make A==a 1a 2E 1==A E 2... .... (4)
A in the formula is the efficient of system.
The required extra electric energy supplement of system is E 3==E 2-E 1The E of==(1-A) 2... (5)
(1-A) E of the right item in the formula 2Promptly be to extract the required electric energy of heavy water.
In sum: as long as in addition for adding the electric energy E that a direct supply replenishes loss on the efficient 3Get final product, according to the second law of thermodynamics: A forever less than 1, when A more near 1, extra electric energy supplement E 3Also more near 0; Efficient is also high more. and in fact, the loss on this efficient is the required energy consumption of system. so just realize less energy-consumption, extracted the hope of heavy water effectively. also disclosed in addition, the efficiency of conversion that improves two complementary transducing heads is the key factor that cuts down the consumption of energy.
Technical process of the present invention such as Fig. 1: the electric energy E of hydrogen-oxygen fuel cell (calling fuel cell in the following text) 2 outputs 2,, in the input electrolyzer 1, make the former water in the electrolyzer carry out electrolysis, respectively at negative electrode effusion hydrogen H through the direct supply 4 of connecting 2At anode effusion oxygen O 2. the H of effusion 2And O 2, in heat exchanger 3, the hot water and steam of being discharged by fuel cell carries out preheating, to raise the efficiency respectively. and hot hydrogen and hot oxygen enter the hydrogen electrode and the oxygen electrode of fuel cell respectively, and the ion migration in ionogen converts chemical energy to electric E 2, be input to again in the electrolyzer 1, carry out electrolysis. along with process constantly circulates, thereby the heavy water concentration in the former water is also constantly raise., reach the target that heavy water is extracted in low consumption effectively.
According to the second law of thermodynamics: A forever less than 1, so insufficient electric energy, so then remedy by direct supply 4., the electric energy of direct supply 4 output: E 3It is exactly the needed energy consumption of system.

Claims (3)

1. method of effectively extracting heavy water. this method is by an electrolyzer (1), a hydrogen-oxygen fuel cell (2), the device that several or one group of heat exchanger (3) and a direct supply (4) are formed.
It is characterized in that:
A. the required electric energy of described electrolyzer (1) is by hydrogen-oxygen fuel cell (2) and the common supply of a direct supply (4);
B. the required fuel of hydrogen-oxygen fuel cell (2) is hot hydrogen (5), hot oxygen (6);
C. this hot hydrogen (5), hot oxygen (6) is from electrolyzer (1), behind the former water of electrolysis, obtains through heat exchanger (3) preheating;
D. the thermal source of heat exchanger is to be supplied with by the water vapor that hydrogen-oxygen fuel cell (2) is discharged.
2. according to claims 1 described device, it is characterized in that:
The hydrogen escape pipe of the hydrogen inlet pipe of hydrogen-oxygen fuel cell (2) and oxygen inlet pipe and electrolyzer (1) and oxygen escape pipe after heat exchanger (3) serial connection, are connected respectively.
3. according to claims 1 described device, it is characterized in that:
The electrode of hydrogen-oxygen fuel cell (2) is with after the electrode of direct supply (4) is connected, make the electromotive force addition of two power supplys after, be connected on the respective electrode of electrolyzer (1).
CN201010111684.4A 2010-02-22 2010-02-22 Method for effectively extracting heavy water Expired - Fee Related CN102162106B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010111684.4A CN102162106B (en) 2010-02-22 2010-02-22 Method for effectively extracting heavy water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010111684.4A CN102162106B (en) 2010-02-22 2010-02-22 Method for effectively extracting heavy water

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CN102162106A true CN102162106A (en) 2011-08-24
CN102162106B CN102162106B (en) 2015-01-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014036599A1 (en) * 2012-09-07 2014-03-13 Gamikon Pty Ltd Electrolysis apparatus
CN105408243B (en) * 2013-07-31 2017-10-20 德诺拉工业有限公司 Electrolysis enrichment method for heavy water
CN114807959A (en) * 2022-03-15 2022-07-29 中国船舶重工集团公司第七一八研究所 High-efficiency hydrogen production system suitable for wide power fluctuation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514382A (en) * 1966-02-16 1970-05-26 Ca Atomic Energy Ltd Electrolytic process for heavy water production
JPH08109005A (en) * 1994-10-06 1996-04-30 Mitsubishi Heavy Ind Ltd Heavy water generator
CN1150934A (en) * 1995-07-21 1997-06-04 财团法人铁道总合技术研究所 Regenerative hybrid power system
CN1778699A (en) * 2005-10-10 2006-05-31 天津理工大学 Sewage treatment system for regenerative resource power supply
CN101024883A (en) * 2007-01-29 2007-08-29 刘书亭 Method and apparatus for wind-light hydroyen-making and extracting heavy water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514382A (en) * 1966-02-16 1970-05-26 Ca Atomic Energy Ltd Electrolytic process for heavy water production
JPH08109005A (en) * 1994-10-06 1996-04-30 Mitsubishi Heavy Ind Ltd Heavy water generator
CN1150934A (en) * 1995-07-21 1997-06-04 财团法人铁道总合技术研究所 Regenerative hybrid power system
CN1778699A (en) * 2005-10-10 2006-05-31 天津理工大学 Sewage treatment system for regenerative resource power supply
CN101024883A (en) * 2007-01-29 2007-08-29 刘书亭 Method and apparatus for wind-light hydroyen-making and extracting heavy water

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NATURE: "Commercial production of heavy water", 《NATURE》, 21 April 1934 (1934-04-21) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014036599A1 (en) * 2012-09-07 2014-03-13 Gamikon Pty Ltd Electrolysis apparatus
CN105408243B (en) * 2013-07-31 2017-10-20 德诺拉工业有限公司 Electrolysis enrichment method for heavy water
CN114807959A (en) * 2022-03-15 2022-07-29 中国船舶重工集团公司第七一八研究所 High-efficiency hydrogen production system suitable for wide power fluctuation
CN114807959B (en) * 2022-03-15 2023-10-27 中国船舶重工集团公司第七一八研究所 High-efficiency hydrogen production system suitable for wide power fluctuation

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Termination date: 20190222