Thorium (named after Thor, the Norse god of thunder) is a mildly radioactive metal which can be used as a fuel for nuclear reactors. It has some very enthusiastic proponents who think the liquid fluoride thorium reactor (acronym LFTR; spoken as
lifter) is the energy source of the future. China seems to agree.
Even though the technology has been known for decades, its potential was never developed because other technologies are more suited to producing plutonium for nuclear weapons. Yet LFTR is said to have many attractions.
Thorium is far more abundant than uranium – at least three-fold.
Thorium does not need enrichment.
Thorium is only mildly radioactive and easy to handle.
LFTRs are small.
LFTRs are safe.
LFTR does not generate plutonium.
LFTR cannot be used to obtain material for nuclear weapons.
LFTR waste has a much shorter half-life than uranium-powered
reactors.
LFTR can be used to destroy current stocks of plutonium.
LFTR is cheaper than traditional nuclear.
LFTR consumes all its thorium fuel.
Thorium consumes its
own hazardous waste. It can even scavenge the plutonium left by uranium
reactors, acting as an eco-cleaner. Kirk Sorensen, a former NASA rocket
engineer, now chief
nuclear technologist at Teledyne Brown Engineering, and closely watched
Internet commentator and educator says,
“It’s the Big One,
once you start looking more closely, it blows your mind away. You can run
civilization on thorium for hundreds of thousands of years [*], and it’s essentially free. You don’t have
to deal with uranium cartels.”
He’s right; thorium is
so common that miners treat it as a nuisance, a radioactive by-product when
they dig up rare earth metals. The U.S. and Australia are full of the stuff. So
are the granite rocks of Cornwall in the UK. Some beaches in India are loaded
with thorium. Not so much mining is needed: all thorium is potentially usable
as fuel, compared to just 0.7% from uranium as much of the uranium has already
decayed.
* To me this figure seems enthusiastic to put it mildly.
In October this year, the
Twelfth Thorium Energy Conference
(ThEC12) will be held in Shanghai. It is billed as the event of the year for
everyone with an interest in the future of thorium energy and its many related
fields.
The U.S. Department of
Energy is quietly collaborating with China on an alternative nuclear power
design known as a molten salt reactor that could run on thorium fuel rather
than on more hazardous uranium, SmartPlanet understands.
In fact, while the EU bumbles around with technologies that
don’t work, such as solar and wind power, while it goes all sniffy over shale
gas, China seems to have latched onto the potential of LFTR.
If adopted on a large scale, LFTRs will probably be factory
built for installation on site. A few large factories may well supply all
global requirements. Where will those factories be? There is also R&D work
to be done too, which means there are likely to be discoveries and developments to be patented.
So, safe, factory-built reactors using a fuel much more
abundant that uranium with opportunities for developing patented technology. Is
China serious about thorium?
From
Wenhui
News (Google Chinese to English translation)
Thorium-based molten
salt reactor, this sounds people Ruzhui the cloud professional term, may, after
three or four decades, becoming one of the pillars of China's energy supply.
Yesterday, one of the
strategic lead science and technology projects as initiated by the Chinese
Academy of Sciences, the first batch of "advanced nuclear fission energy -
thorium-based molten salt reactor nuclear system" project was officially
launched. Its scientific goal is about 20 years, developed a new generation
nuclear energy systems and technologies have reached the level of the pilot and
owns all intellectual property rights.
As the world's new
generation of nuclear reactors is still in the research and development, China
has independently developed the thorium-based molten salt reactor, will be
possible to obtain all of the independent intellectual property rights. This
makes China the lifeblood of the energy to firmly grasp in their own hands.
Experts estimate that
China has nearly 300,000 tons of thorium reserves, which is enough for the
nation to use for 300 years. Identified uranium will only supply the country
for 95 years at the current annual consumption rate, according to the Uranium
Red Book 2009.
This places Chinese thorium reserves on a par with Turkish
reserves. So is that a compelling reason why Turkey may well be admitted to the
EU? Always assuming EU bureaucrats finally catch up with the real world. But by
then China may well have the thorium business sewn up.
Still – we have our windmills.