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標題: China fuel breakthrough [打印本頁]

作者: CWong 時間: 2011-1-3 13:29 標題: China fuel breakthrough

Chinese scientists have made a breakthrough in nuclear fuel reprocessing technology that could effectively end any uranium supply concerns, state media reported on Monday.

The technology developed by state-run China National Nuclear Corp enables the country to re-use irradiated nuclear fuel, China Central Television said.

"China's proven uranium sources will last only 50 to 70 years, but this now changes to 3,000 years," said the report.

The development would be an important step forward in China's plans to increase the share of alternative power sources in its energy mix to reduce pollution and achieve energy security.

It has stepped up investment in nuclear power in an effort to slash carbon emissions and reduce the nation's heavy reliance on polluting coal, which accounts for 70 percent of its power needs.

China announces nuclear fuel break

China, now the world's second-largest economy after surpassing Japan in 2010, aims to get 15 percent of its power from renewable sources by 2020.

China aims to increase nuclear power capacity to 70-80 gigawatts by 2020, accounting for about five percent of the country's total installed power capacity, state press reports have said.

The government said previously the target was 40 gigawatts.

China currently produces around 750 tonnes of uranium a year but annual demand could rise to 20,000 tonnes a year by 2020 as it boosts nuclear power output, the China Daily newspaper has said. - Sapa-AFP

作者: peter236 時間: 2011-1-3 13:32

This sounds like another technology win for China, another New Year present for the western bashers.

作者: CWong 時間: 2011-1-3 13:35

China has followed in the routes of Russia, India and Japan after announcing its understanding on how to reprocess nuclear fuel. The industrial secret in largely kept separate from others, though it enables each country to separate unused materials during the creation of nuclear energy to create additional power sources. This process will give China an unprecedented amount of untapped energy sources, providing them with the ability to power its large economy.

During the process of creating nuclear energy, any unused uranium and plutonium can be used as their own power sources, reducing waste and providing various additional proponents of energy sources. Typically plutonium is used during this process, but uranium is also capable of providing an additional energy source during price increases.

The process, though effective is finding energy alternatives, is also highly controversial as plutonium is a main component in creating nuclear weapons. Already an owner of nuclear weapons, the potential that this discovery holds could magnify the Chinese possession of nuclear fuel to more than 3000 years. The company that made this discovery claims this fuel can last up to 70 years as is.

At this point in time, China has over a dozen nuclear plants but has yet to commercialize on this process. Already their uranium reserves, according to the China Daily, stands at 171 400 t in the areas of Jiangxi, Guangdong, Hunan, Xinjiang, Inner Mongolia, Shaanxi, Liaoning and Yunnan. This unique recycling technology was discovered at the China National Nuclear Corporation’s No. 404 Factory in the Gobi desert of Gansu province. China currently produces around 10, 15 gw.

作者: Catpiano 時間: 2011-1-3 13:41

Yeah!! China rocks!

2011 is the year of China ..

Yeah .. Yeah ..

作者: lo_pak 時間: 2011-1-3 13:57

Good to know!

作者: sheep 時間: 2011-1-3 17:21

Oil price drops?

作者: sheep 時間: 2011-1-3 17:22

Oil price drops?

作者: rainbow-davie 時間: 2011-1-3 18:28

but as said, other countries already know how to recycle it. so..

作者: peter236 時間: 2011-1-3 20:14

The article mentioned Russia, India and Japan know the technology. Probably Canada, UK and the US do not know how to do it. It is questionable whether India knows the technology since it cannot even build its own nuclear power plant.

作者: Lik 時間: 2011-1-3 20:40

The article mentioned Russia, India and Japan know the technology. Probably Canada, UK and the US do not know how to do it. It is questionable whether India knows the technology since it cannot even build its own nuclear power plant.
peter236 發表於 2011-1-3 20:14

Moron,

Next time, do a little more research before your start spewing shxt from your mouth la~

http://news.mingpao.com/20110104/cab1.htm

中國核能技術突破鈾儲量用多3000年

【明報專訊】中國核能科技取得重大技術突破，成功開發核燃料循環利用技術，將把鈾的利用率提高60倍之多，大幅提升中國核能儲備，由於此前中國已探明的核能儲備（鈾資源儲量）最多只用70年，現在就足以使用3000年之久。

鈾利用率提升60倍

中央電視台報道，中國核工業集團成功研製出「乏燃料後處理技術」，即能從已不能再用於發電的核廢料中，繼續利用鈾、鉮（同「不」音）等燃料的能量。專家稱，核能發電是通過核燃料在核反應爐中發生裂變反應，釋放出能量。當核燃料功率明顯下降時，燃料就需要更換，被換出的核廢料叫「乏燃料」，類似「煤渣」。據知，在當今核電技術下，核燃料只釋放了3%至4%能量，就因功率明顯下降變成「廢料」，進入可長達數萬年的衰變過程，緩慢釋放剩餘能量。

輻射極強費用高昂

由於目前核電站對鈾的利用率僅1%，但新技術可將利用率提高至60%以上，意味覑在現有核電規模下，中國已探明的鈾資源本來只夠用50至70年，但未來可足夠使用3000年之久。然而，該技術包括有極強核輻射、對人體有致命傷害的元器件進行剪切、分離、提取、提純等工序，技術精度要求高，且費用昂貴。目前已掌握該技術且高度保密的有英、俄、法、日、印等國，中國科學家經過24年才獲得。

報道引述中國核工業集團總經理孫勤的評價說，「在國際上對整個技術水平、科技水平，我們將能夠擁有話語權，甚至還能起到一定的引導作用。」中國計劃在2020年前把核能發電量提高到700至800億瓦，佔全國發電量的5%。中國目前能生產750噸鈾燃料，但年需求在2020年前很可能上升至2萬噸。

Given the radiation risks that are involved, I certainly hope we wouldn't hear of another nuclear radiation leak from the Grandfather. However, the 大亞灣 accidents (and subsequent cover-ups) certainly are not confidence-inspiring.

-Lik

作者: peter236 時間: 2011-1-3 21:24

本帖最後由 peter236 於 2011-1-3 21:28 編輯

Moron,

Next time, do a little more research before your start spewing shxt from your mouth la~
...
Lik 發表於 2011-1-3 20:40

Like we discussed before, the low level incidents at Daya Bay were not required to be disclosed immediately according to international regulation, so the bashers should STFU, as there was no cover-ups at all.

We are still skeptical that India has mastered such technology just by looking at their lousy technological development. They can't even build their own nuclear power plant and the Indians do not even have stable electricity supply.

Still there is no mention that Canada or Germany have mastered this technology.

作者: fy789 時間: 2011-1-3 21:28

提示: 作者被禁止或刪除內容自動屏蔽

作者: mcjohnjohn 時間: 2011-1-3 23:08

Like we discussed before, the low level incidents at Daya Bay were not required to be disclosed im ...
peter236 發表於 2011-1-4 13:24

Peter 仔, 仲乜你成日都mention 印度野架?!?!
係唔係近排溝左件好索既印度西施?

作者: kingkong123 時間: 2011-1-3 23:39

Like we discussed before, the low level incidents at Daya Bay were not required to be disclosed im ...
peter236 發表於 2011-1-3 21:24

核泄漏大细，系人都应该有知情权啊。（according to international regulation）三聚氰胺分量少，细路吃有事，大人吃没事，就没所谓？

作者: MoiRhapsody 時間: 2011-1-3 23:54

Germany is stepping out of Nuclear power and Canada never really depends on nuclear power anyways.

作者: mcjohnjohn 時間: 2011-1-4 00:05

Germany is stepping out of Nuclear power and Canada never really depends on nuclear power anyways.
MoiRhapsody 發表於 2011-1-4 15:54

其實理論上核電真係唔錯架wor. 點解佢地唔o係呢方面發展呢?

作者: MoiRhapsody 時間: 2011-1-4 00:17

本帖最後由 MoiRhapsody 於 2011-1-4 00:22 編輯

加拿大有大量水力資源。
德國主要原因係國民對核廢料處理出現既問題非常反感。
德國五十年代已經用核發電，用左超過半個世紀，
2000年話會逐步關閉核電廠，2020年會完全0核。

作者: mcjohnjohn 時間: 2011-1-4 01:05

加拿大有大量水力資源。
德國主要原因係國民對核廢料處理出現既問題非常反感。
德國五十年代已經用核發電， ...
MoiRhapsody 發表於 2011-1-4 16:17

水力資源? 加拿大係唔係好似大陸既三峽大霸咁發電? 定係有其他更好既方法?
小弟真係覺得核電係好野, 希望d 科學家可以多d 研究. E = mc2 實在太吸引, 太迷人了~

作者: zoids 時間: 2011-1-4 01:59

水力資源? 加拿大係唔係好似大陸既三峽大霸咁發電? 定係有其他更好既方法?
小弟真係覺得核電係好野, 希望d ...
mcjohnjohn 發表於 2011-1-4 01:05

Most if not all Ontario and Quebec have been using nuclear energy for long time, also Canada is one of the top uranium producer if I remember it right.

The article looks flawless until you ask more about details and follow uranium news.

First, it's well known that China is building a lot of nuclear generators, and just signed a long term contract with Cameco, if this technology is ready to be used, they won't need any more uranium already as the article mentioned.

Same for Russia, if the reprocess technology is really commercially viable, why Russia just spent all these money to buy Uranium One and Mantra mine in Africa?  They obviously is going all out to secure any uranium source.

Then you look at the uranium spot price, it just gone up 50% from $40 in last June to now $62 and still going up.  Look at uranium companies like URRE, the stock price just jumped from $1 to $3.5 in a few months.  Don't you think something is very fishy going on?

I think everyone is jumping on the uranium bandwagon, I think PRC is trying to make the uranium spot price lower by understating their demand to get their uranium as cheap as possible before uranium spot price back to record $130 like in 2007.

Last time it was a bubble, this time everyone is building nuclear plants... do you think this will another bubble too?  I think it will eventually turn into another bubble, but not now.

I forgot someone mentioned UUU long time ago, thank to that guy, I realized the coming demand and made a bit profit from the recent global uranium renaissance.

作者: peter236 時間: 2011-1-4 02:55

Most if not all Ontario and Quebec have been using nuclear energy for long time, also Canada is on ...
zoids 發表於 2011-1-4 01:59

I was thinking the same thing, why is uranium prices going up if these countries can recycle uranium. For India cannot even build their own nuclear power plant, how can they master the technique to recycle uranium to generate power?

作者: BiscottiGelato 時間: 2011-1-4 10:10

Most if not all Ontario and Quebec have been using nuclear energy for long time, also Canada is on ...
zoids 發表於 2011-1-4 01:59

My question would be, how much does it take to recycle Uranium? If the cost to recycle is higher than extraction from ground, then the ability to recycle won't affect spot price until reserve depletes and only hard to extract locations are left, raising the extraction cost.

It's good news that we have plenty of power to tap into for thousands of years to come. Tho, I'd believe the price for Nuclear power will soon be capped by the cost of safe disposal of the nuclear waste instead of the cost of Uranium extraction and Nuclear plant construction. The power won't come for free infinitely as we like to think. Of course... until Nuclear Fusion comes along... maybe several generations down the road if WWIII haven't broken out before then...

作者: BiscottiGelato 時間: 2011-1-4 10:24

Answering my own question: Process seem to be extremely costly, both in environmental cost and the actual processing cost itself. This won't come into play until we have depleted the sun all together or something... or we find some breakthrough to do it at a much lower all around cost. http://www.fpif.org/articles/nuclear_recycling_fails_the_test

作者: Lik 時間: 2011-1-4 10:35

Most if not all Ontario and Quebec have been using nuclear energy for long time, also Canada is one of the top uranium producer if I remember it right.
zoids 發表於 2011-1-4 01:59

I dunno about Quebec, but Ontario is definitely not entirely reliant on nuclear power. It is the largest form of power generation in the province (using Canada's very own CANDU reactors, no less), but it still amounts to less than 50% of Ontario's electricity generation. The province uses a large number of fossil fuel (eg. coal), natural gas, and hydroelectric power stations, as well as some alternative energy power stations as well.

-Lik

作者: blue20ae 時間: 2011-1-4 13:24

From Wikipedia....
http://en.wikipedia.org/wiki/Electricity_sector_in_Canada

In 2007, the leading type of power generation by utilities in Canada is hydroelectricity, with a share of 58.7%. Coal (16.6%), nuclear (15.5%), natural gas (6.6%) , fuel oil (1.2%), wind (0.5%) and wood (0.3%) follow.

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