Researchers meet major hydrogen milestone

September 18, 2008

A team of scientists from the U.S. Department of Energy's Idaho National Laboratory earlier this month reached a major milestone with the successful production of hydrogen through High-Temperature Electrolysis (HTE).

The milestone was reached when the Integrated Laboratory Scale experiment started producing hydrogen at a rate of 5.6 cubic meters per hour.

The achievement was recognized at a media event in Idaho Falls Sept. 18.

"This is by far the biggest achievement we've had," said Carl Stoots, the experiment's principal investigator.

High-Temperature Electrolysis is a system of producing hydrogen very efficiently by using technology originally developed for solid oxide fuel cells. HTE is a significant improvement over the more conventional methods to produce hydrogen. HTE uses an electric current through water to separate it into hydrogen and oxygen. Combined with a clean power source such as a next-generation nuclear plant, HTE could produce hydrogen at 45 to 55 percent efficiency.

There are several potential applications of hydrogen from high-temperature electrolysis, all of which are closer to being actualized now that HTE has proven itself capable of producing hydrogen at such an advanced level. Hydrogen is commonly used to help produce liquid fuels. INL Laboratory Fellow Steve Herring, who heads the HTE project, said it could also prove helpful in upgrading fuel from the Athabasca Tar Sands in Alberta, Canada, because producing gasoline and diesel fuel from such heavy oil deposits requires extensive amounts of hydrogen and steam.

September's achievement is a major scale-up from earlier INL experiments on a small scale. Herring said his team wanted it to match the final product closely.

With this milestone met, the HTE plant is on its way to opening many doors for innovation in energy production, contributing to the Department of Energy's overarching goal of a "hydrogen economy." Eventually, HTE could provide pure hydrogen for fuel cell-powered cars, Herring said – "but that's a long way off."

Source: Idaho National Laboratory


print this article email this article download pdf blog this article bookmark this article     Stumble it Digg this share on Facebook retweet share on Reddit add to delicious
Rate this story - 4.3 /5 (29 votes)

Rank Filter

Move the slider to adjust rank threshold, so that you can hide some of the comments.


Display comments: newest first

  • Dinotron - Sep 18, 2008
    • Rank: 1.4 / 5 (7)
    So tell me how nuclear energy is "clean"????

    Sorry, down the wrong rabbit hole.
  • tpb - Sep 18, 2008
    • Rank: 3.7 / 5 (3)
    Using any energy source to produce hydrogen at 50% efficiency is senseless, when the same source can produce electricity at the same efficiency.
    Electric motors controllers are 90% to 95% efficient.
    Engines and fuel cells are between 25% and 40% for use in a vehicle.
    Why would we want to throw away 1/2 to 3/4 of the energy, to use hydrogen as a carrier instead of electricity?
  • Soylent - Sep 18, 2008
    • Rank: 4.8 / 5 (4)
    So tell me how nuclear energy is "clean"????


    Comparable greenhouse gas emissions to wind and hydropower, way less than solar PV or solar thermal.

    Uses way less land, less building material than wind, solar or hydro. Produces baseload power and competes directly with coal power, while solar and wind power depend on coal powered spinning reserve and natural gas peaker plants to provide reliable electricity.

    Produces a trivial amount of spent fuel that can cheaply and safely be stored.

    Produces isotopes that are difficult or impossible to obtain any other way, such as technetium-99(used as a standard beta-emitter for calibration, could be used for opto-electric nuclear batteries, unique catalytic properties). Isotopes for Radioisotope Thermal Generators(plutonium-238, curium-244, strontium-90) which provide the only means short of a nuclear reactor to power probes in the outer solar system(voyager 1 is still active after 31 years; most of the plutonium powered pacemakers from the 70's still worked when they were disassembled, some patients have used them for well over two decades without further surgery). Valuable platinum group metals(ruthenium, rhodium, palladium). Tritium(vital for fusion research, used in radioluminescent paint for emergency exit signs, watches, betavoltaic powersources). Caesium-137(food irradiation, gamma source for radiotherapy of cancer).
  • Soylent - Sep 18, 2008
    • Rank: 2.3 / 5 (3)
    Using any energy source to produce hydrogen at 50% efficiency is senseless, when the same source can produce electricity at the same efficiency.


    That's not the case here. High-temperature electrolysis and thermochemical hydrogen production is more efficient than a typical heat engine; but that doesn't necessarily mean it's worth all the bother to compress, store, transport and use hydrogen gas in inefficient fuel cells.
  • toold - Sep 18, 2008
    • Rank: not rated yet
    I seem to remember that about 1980 there was an article published in the Chemical Engineering Journal that exposing water to a microwave cavity resonance of 600 would separate water into hydrogen and oxygen. I've not heard anything further and left the field a couple of years later when the political situation made oil and gas cheap again. Anybody find anything about that?
  • gmurphy - Sep 19, 2008
    • Rank: 4 / 5 (1)
    certainly, losing 50% of the energy being produced is a heavy price to pay for conversion into hydrogen. But renewable energy sources such as solar, wind or tidal energy produce a lot of energy at times when it isn't being consumed. Now that is wasted energy. By converting it into a form which can be used later, the could represent a significant improvement in energy efficiency for these power sources. This hydrogen could also be used to fuel cars and kick start the hydrogen economy.
  • SongDog - Sep 19, 2008
    • Rank: not rated yet
    Here's more:
    www.sciencedaily....0624.htm

    30kWH thermal input per kg H2 out
  • htomfields - Sep 25, 2008
    • Rank: not rated yet
    The Idaho National Laboratory has a lot of other environmentally friendly projects. The Web site is www.inl.gov but there is also a channel at YouTube.

    http://www.youtub...ionalLab

    I would suggest the "Motion to Energy M2E" or "Harvesting the Sun's Energy" videos.

September 18, 2008 all stories

Comments: 8

4.3 /5 (29 votes)
  • Stumble this up

  • Digg this

  • share this

  • hide
  • Related Stories




  • hide
  • Relevant PhysicsForums posts

  • Physics of Golf
    created 1hour ago
  • Rocket Experiment Help
    created 11 hours ago
  • Coulomb's Law
    created 16 hours ago
  • Laser spots
    created 20 hours ago
  • More from Physics Forums - General Physics

Other News

Big Bang atom smasher sends beams in 2 directions (AP)

Large Hadron Collider sends beams in 2 directions

Physics / General Physics

created 1hour ago | popularity 5 / 5 (3) | comments 1

(AP) -- The world's largest atom smasher made another leap forward Monday by circulating beams of protons in opposite directions at the same time in the $10 billion machine after more than a year of repairs, ...


Aquatic creatures mix ocean water

Physics / General Physics

created 21 hours ago | popularity 5 / 5 (3) | comments 1

Understanding mixing in the ocean is of fundamental importance to modeling climate change or predicting the effects of an El Niño on our weather. Modern ocean models primarily incorporate the effects of winds and tides. However, ...


Restored machine to explore mysteries of Big Bang (AP)

Restored machine to explore mysteries of Big Bang

Physics / General Physics

created Nov 21, 2009 | popularity 4.6 / 5 (18) | comments 23

(AP) -- Scientists are preparing the world's largest atom smasher to explore the depths of matter after successfully restarting the $10 billion machine following more than a year of repairs.


nuclear power plant

Doubts raised on nuclear industry viability

Physics / General Physics

created Nov 19, 2009 | popularity 3.1 / 5 (21) | comments 19

(PhysOrg.com) -- The investment in nuclear power has been growing around the world over the last few years, being viewed as a means for countries to control their energy security, avoid the price fluctuations ...


Researchers Find Innate Correlations Among Different Power Law Phenomena

Researchers Find Innate Correlations Among Different Power Law Phenomena

Physics / General Physics

created Nov 17, 2009 | popularity 4.3 / 5 (18) | comments 17

(PhysOrg.com) -- Studying the patterns that emerge in natural and social phenomena is a popular area of research, although usually individual phenomena are studied separately from each other. In a recent study, ...