Hearing that the Geira Energy Technology Company, a subsidiary of Huaxing Group Company, has developed the third-generation experimental reactor technology, and the experiment is progressing smoothly, Zhao Zhizhong of the Energy Bureau was also very shocked and whispered to Bai Jili: "Dean Bai, what do you think of their thorium-based molten salt reactor technology?"

"We'll have to wait to see how well they do in the post-processing process before we can make a conclusion. ”

Bai Jili said.

After a while, everyone also came to the place where the emergency treatment system was located below, and one of the equipment rooms contained the large container.

Song Yongjie explained: " If the core overheats, the cooling plug under the reactor will automatically open, and the molten salt coolant in the reactor can be drained in a few seconds, and the molten salt will be pushed into this sealed container by gravity, and the fuel will be discharged into the fuel protection container in the other room, and the reaction of the reactor will be stopped immediately, because the thorium-based molten salt reactor is high temperature and atmospheric pressure, so there will be no explosion, and these containers are special containers, which can well prevent high-intensity radiation radiation. ”

Hearing this, Li Kaiyuan also nodded.

Zhao Zhizhong opened his mouth and said: "I heard that the biggest technical obstacle to thorium-based molten salt reactor technology is in the post-processing link, Chief Li, why don't we go to this post-processing place to see the next one?"

Li Kaiyuan opened his mouth and said, "Well, then go over and have a look." ”

After a while, the group passed through the huge vessel and came to a small chemical plant facility that processed molten salt next to it.

When he saw such a small facility, Zhao Zhizhong was a little surprised: "Why is this treatment facility so small?"

Yang Jie said with a smile: "Don't look at this facility as small, but its processing capacity is not small, and it can easily complete the treatment of nuclear waste in a 1,000-megawatt nuclear power plant." ”

Song Yongjie said at this time: "Ladies and gentlemen, our company has developed a set of dry separation technologies such as fluorination volatilization, vacuum distillation and fluoride salt electrochemistry, through which the recovery rate and recovery quality of molten salt are improved, dust emissions are reduced, and the separation rate of uranium metal obtained by electrolysis exceeds 90%. ”

"In particular, we have developed such a device for the separation of protactinium 233 for the chemical separation of thorium breed molten salt stacks. ”

"In this equipment, we use a four-meter-high molten bismuth column and a vapor fluoride distillation system to extract different salts, which can successfully separate protactinium from the fuel salt, preventing this element from being captured by neutrons in the reactor and turning it into a reactor poison," he said. ”

"At the same time, we have set up a small storage facility next to it, and the isolated protactinium decays into uranium-233. Since protactinium has a half-life of 27 days, 10 months of storage ensures 99.9% decay into uranium-233 fuel, which is then released back into the reactor for further combustion reactions. ”

Yang Jie said: "Although the thorium fuel cycle will produce spent fuel after burning off all actinides, a 1,000 MW thorium-based molten salt reactor nuclear power plant produces about 800 kilograms of waste per year, and the rest are some low-emission waste, the amount of nuclear waste is less than one-tenth of that of traditional nuclear power plants, and the disposal time of nuclear waste can be shortened to less than 300 years, and the decay period of high-level radioactive waste that is difficult to deal with in traditional nuclear power plants can reach tens of thousands of years, obviously this nuclear power technology is safer." ”

"Actually, there's a problem here. ”

Yang Jie paused and said.

"What's the problem?"

Li Kaiyuan asked.

"Similar to LWRs, thorium breeder reactors use low-energy thermal neutrons, so they are much safer than fast breeder reactors required for the uranium-plutonium fuel cycle, although thorium-based breeder reactors also have lower breeder rates. Only about 109% of uranium-233 can be produced annually from thorium fuel. This means that it will take 8 years or more to get enough uranium-233 to fuel a new reactor, which will slow down the deployment of this type of nuclear reactor......"

"What do you mean?"

Li Kaiyuan asked.

"Chief Li, we don't have enough uranium-233 reserves in our country to immediately open some reactors, and if we want to rapidly deploy and start a new thorium reactor plan, we must use plutonium, which comes from existing light water reactor nuclear waste or decommissioned nuclear weapons......"

Bai Jili said.

Li Kaiyuan glanced at Zhao Zhizhong: "The Ministry of Energy has also recently conducted a survey and statistics to see how much stock we have in this area." ”

Zhao Zhizhong nodded and said, "Okay, chief." ”

Ma Qiulin was very happy to hear this: "The demand gap for energy in Central Plains Province is very large, and I think we can start some thorium-based molten salt reactor nuclear power projects as soon as possible." ”

Hearing Ma Qiulin's words, Yang Jie smiled.

The current Central Plains Province does have a very large gap in the total amount of electricity, and the province is also a headache for this.

With the rapid and explosive growth of the economy of Central Plains Province, the power in the province can no longer keep up with this speed.

Originally, the proportion of hydropower in the Central Plains Province was large, the seasonal power shortage was serious, and the peak regulation capacity of the power grid was seriously insufficient, and the load center areas such as Tanzhou City, Yuetai City, and Jianning City accounted for 50% of the province's electricity consumption, and most of the power sources were distributed in the northwest of the province.

Although fuel cell power stations continue to be built in the province, and most of the province's coal is used to make hydrogen fuel, the Central Plains Province is not a major coal-producing province in the first place, so it has to constantly transfer coal from the north, but it is still not enough.

In recent years, there has been a serious power shortage in Central Plains Province, and in order to protect Tanzhou City, the Provincial Electric Power Bureau has to limit more than 77,200 times of power throughout the year, which means that the power gap is already very large.

Originally, the Central Plains Province began to want to launch nuclear power projects in the 90s, and the Central Plains Provincial Electric Power Survey and Design Institute was entrusted by the Provincial Nuclear Power Office to undertake the universal selection of nuclear power plant sites in the Central Plains Province, recommended a total of 7 sites from 12 sites, and formed a census report.

Four years ago, the state carried out a survey of the resource planning of nuclear power plant sites in inland provinces, and in accordance with the national macro policy, the province re-established a leading group for nuclear power projects to coordinate major issues in the preliminary work of nuclear power projects.

Three years ago, the province authorized the power investment group Lingwu Electric Power Co., Ltd. to be the owner of the first phase of nuclear power development in Zhongyuan Province, and the Electric Power Planning Institute organized a review of the preliminary feasibility study report of the nuclear power plant in Zhongyuan Province, and preliminarily determined that the Xiaotangshan site and Qilongshan plant site were the focus of work, with a planned installed capacity of 6,000 megawatts and a construction scale of 2,000 megawatts in the first phase.

However, with the introduction of the third generation of nuclear power technology, the national leadership wants to develop its own nuclear power technology after introducing and digesting the third generation of nuclear power technology, and then expand the scale of construction in China, so the nuclear power project in Central Plains Province has not been approved.

Although the state has announced a plan for the development of nuclear power, by 2020, the domestic installed nuclear power capacity will reach 360,000 megawatts, accounting for 4% of the country's total installed power capacity, that is, the country will approve the construction of at least two 1,000 megawatt nuclear power units every year, but the progress of nuclear power construction in recent years has been significantly slow.

Central Plains Province can't wait so long, so it can only find ways to build more hydropower stations and new energy power stations while launching more fuel-fired power stations.

Who knew that Huaxing Group suddenly sacrificed the fourth-generation nuclear power technology such as thorium-based molten salt reactor this time, which also surprised Ma Qiulin.

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