Organic iodine remover
As an organic iodine remover that removes organic iodine in a containment vessel of a nuclear reactor, an organic agent (for example, an ionic liquid, an interfacial active agent, a quaternary salt, or a phase transfer catalyst) having a function of dissolving and decomposing the organic iodine and retaining iodine is used. The organic iodine remover is a substance composed of a cation and an anion. The organic iodine remover is, in particular, an organic iodine remover in which, in a structure of the cation of the organic agent, carbon or oxygen is bonded to, via a single bond, to a phosphorus element, a sulfur element or a nitrogen element, the number of carbon chains is 2 or more, and an anionic structure is configured with a substance with high nucleophilicity. By using such an organic agent, the organic iodine is removed with an efficiency of 99% or more.
1. An organic iodine remover that removes organic iodine in a containment vessel of a nuclear reactor,
wherein the organic iodine remover is a substance composed of a cation and an anion and liquid at a temperature between 100° C. and 200° C.,
the cation is a substance which dissolves methyl iodine,
the organic iodine remover is a substance in which
in a structure of the cation, carbon or oxygen is bonded, via a single bond, to a phosphorus element, a sulfur element or a nitrogen element, and
a structure of the anion has an anion charge present in a carbon element, a sulfur element, a nitrogen element, an oxygen element or a halogen element, and
the organic iodine remove is a substance in which the anion is composed of H 3 C − , H 2 RC − , HR 2 C − , R 3 C − , NC − , and RCC − , which has a charge present in the carbon element.
2. An organic iodine remover, that removes organic iodine in a containment vessel of a nuclear reactor, wherein
the organic iodine remover is a substance composed of a cation and an anion and liquid at a temperature between 100° C. and 200° C.,
the cation is a substance which dissolves methyl iodine,
the organic iodine remover is a substance in which
in a structure of the cation, carbon or oxygen is bonded, via a single bond, to a phosphorus element, a sulfur element or a nitrogen element, and
a structure of the anion has an anion charge present in a carbon element, a sulfur element, a nitrogen element, an oxygen element or a halogen element, and
the organic iodine remover is a substance in which the anion is composed of RS − , which has a charge present in the sulfur element.
3. An organic iodine remover that removes organic iodine in a containment vessel of a nuclear reactor, wherein
the organic iodine remover is a substance composed of a cation and an anion and liquid at a temperature between 100° C. and 200° C.,
the cation is a substance which dissolves methyl iodine,
the organic iodine remover is a substance in which
in a structure of the cation, carbon or oxygen is bonded, via a single bond, to a phosphorus element, a sulfur element or a nitrogen element, and
a structure of the anion has an anion charge present in a carbon element, a sulfur element, a nitrogen element, an oxygen element or a halogen element, and
the organic iodine remover is a substance in which the anion is composed of N 3 − , H 2 N − , HRN − , and R 2 N − , which has a charge present in the nitrogen element.
4. An organic iodine remover that removes organic iodine in a containment vessel of a nuclear reactor, wherein
the organic iodine remover is a substance composed of a cation and an anion and liquid at a temperature between 100° C. and 200° C.,
the cation is a substance which dissolves methyl iodine,
the organic iodine remover is a substance in which
in a structure of the cation, carbon or oxygen is bonded, via a single bond, to a phosphorus element, a sulfur element or a nitrogen element, and
a structure of the anion has an anion charge present in a carbon element, a sulfur element, a nitrogen element, an oxygen element or a halogen element, and
the organic iodine remover is a substance in which the anion is composed of HO − , NO 2 − , NO 3 − , RO − , RCO 2 − , RPO 3 − , RSO 3 − , RPO 4 − , R 2 PO 2 − , R 3 CO − , FO 3 − , ClO 3 − , BrO 3 − , IO 3 − , FO 4 − , ClO 4 − , BrO 4 − , and IO 4 − , which has a charge present in the oxygen element.
5. The organic iodine remover according to claim 1 , which is a substance in which the anion is composed of F − , Cl − , Br − , I − , F 3 − , Cl 3 − , Br 3 − , and I 3 − , which has a charge present in the halogen element.
6. The organic iodine remover according to claim 1 , which is a substance in which a part of a carbon chain R of the anion is composed of an oxygen bond.
7. The organic iodine remover according to claim 1 , which is a substance in which a part or all of a hydrogen element bonded to a carbon chain of the anion is substituted with a fluorine element.
8. The organic iodine remover according to claim 2 , which is a substance in which a part of the carbon chain R of the anion is composed of an oxygen bond.
9. The organic iodine remover according to claim 2 , which is a substance in which a part or all of a hydrogen element bonded to the carbon chain of the anion is substituted with a fluorine element.
10. The organic iodine remover according to claim 3 , which is a substance in which a part of the carbon chain R of the anion is composed of an oxygen bond.
11. The organic iodine remover according to claim 3 , which is a substance in which a part or all of a hydrogen element bonded to the carbon chain of the anion is substituted with a fluorine element.
12. The organic iodine remover according to claim 4 , which is a substance in which a part of the carbon chain R of the anion is composed of an oxygen bond.
13. The organic iodine remover according to claim 4 , which is a substance in which a part or all of a hydrogen element bonded to the carbon chain of the anion is substituted with a fluorine element.
14. A filtered containment venting apparatus for removing a radioactive substance comprising:
a filtered containment venting vessel including scrubbing water and a filter for removing a radioactive substance therein;
a venting pipe connected to a nuclear reactor pressure vessel;
an inlet pipe including an end connected to the venting pipe and another end introduced in the filtered containment venting vessel;
an outlet pipe connected to the filter in the filtered containment venting vessel;
an organic iodine remover disposed in the filtered containment venting apparatus,
wherein the organic iodine remover is an organic iodine remover according to claim 1 .
15. The filtered containment venting apparatus according to claim 14 , further comprising:
a storage container storing the organic iodine remover,
wherein the storage container is disposed outside the filtered containment venting vessel.
16. A filtered containment venting apparatus for removing a radioactive substance comprising:
a filtered containment venting vessel including scrubbing water and a filter for removing a radioactive substance therein;
a venting pipe connected to a nuclear reactor pressure vessel;
an inlet pipe including an end connected to the venting pipe and another end introduced in the filtered containment venting vessel;
an outlet pipe connected to the filter in the filtered containment venting vessel;
an organic iodine remover disposed in the filtered containment venting apparatus,
wherein the organic iodine remover is an organic iodine remover according to claim 2 .
17. A filtered containment venting apparatus for removing a radioactive substance comprising:
a filtered containment venting vessel including scrubbing water and a filter for removing a radioactive substance therein;
a venting pipe connected to a nuclear reactor pressure vessel;
an inlet pipe including an end connected to the venting pipe and another end introduced in the filtered containment venting vessel;
an outlet pipe connected to the filter in the filtered containment venting vessel;
an organic iodine remover disposed in the filtered containment venting apparatus,
wherein the organic iodine remover is an organic iodine remover according to claim 3 .
18. A filtered containment venting apparatus for removing a radioactive substance comprising:
a filtered containment venting vessel including scrubbing water and a filter for removing a radioactive substance therein;
a venting pipe connected to a nuclear reactor pressure vessel;
an inlet pipe including an end connected to the venting pipe and another end introduced in the filtered containment venting vessel;
an outlet pipe connected to the filter in the filtered containment venting vessel;
an organic iodine remover disposed in the filtered containment venting apparatus,
wherein the organic iodine remover is an organic iodine remover according to claim 4 .