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Researchers Test On-Board System for Hydrogen Storage in Organic Hydride Liquids

Hrein Energy Inc., a Japan-based developer of hydrogen storage systems based on organic hydrides, has successfully field-tested an on-board version of its storage system to produce a hydrogen stream for use with gasoline in an automobile combustion engine. Hrein is targeting its system for eventual use with fuel-cell vehicles, among other applications.

The cooperative research project included Professor Emeritus Masaru Ichikawa of Hokkaido University, the developer of the organic hydride system, along with Futaba Industrial Co. and Ito Racing Service Co.

Organic hydrides are liquids under atmospheric temperature and pressure, yet offer relatively high hydrogen content: between 6-8 wt.%. An example of the reaction is:

Methylcyclohexane C7H14 ←→ Toluene C7H8 + 3H2

Because the organic hydrides are liquids (not to be confused with liquefied hydrogen), the existing fuel storage, transportation and refueling infrastructure could basically be maintained were the liquids applied to transportation.

Organic chemical hydrides can freely produce and absorb H2 gas by catalytic reaction under mild conditions. Hrein developed a spray pulse reactor that feeds the reactant (the organic hydride liquid) to the hot catalyst surface as atomized liquid.

The company obtained its highest hydrogen production rate by using highly heat conducting supporting materials (thin Al2O3 layer on aluminum plate). Hrein Energy and the others packaged this system in the form of a small cylindrical reactor for recovering hydrogen from the organic hydride. Made of aluminum, the reactor is 45cm tall and 15cm in diameter and is heated by the engine’s exhaust.

Hrein Energy plans to test the system on a compact car within the year.

Separately, at the recent 234th meeting of the American Chemical Society, Robert Crabtree from Yale presented his work on developing catalysts that could enable the use of hydrogen carried in a liquid fuel for transportation use.

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Comments

miket1

It is incredible that they are now calling simple hydrocarbons 'organic hydrides'. Who came up with that term?

I have a Ph.D in organic chemistry and it makes me cringe when I see a term like this.

And, this is nothing knew. I remember Scientific American, more than a decade ago, talking about the use of tetrahydronapthalene (tetralin) as a source of hydrogen for fuel cells(dehydrogenates to napthalene, which can then be converted back to the tetrahydro compound).

Aussie

Perhaps Japan has generous grants for hydrogen research same as DoE in the US. I wonder how this compares to methanol not only for energy return but volumetric hydrogen density, cheapness and no need for prewarming or catalysts. I'm not sure how well methanol blends with ICE fuels but it too can be used in fuel cells. Hydrogen research seems to be the gift that keeps on giving.

LEO WELLS

MIKEt1 MAYBE YOU CAN HELP

WITH THE ALTERNATORS AND VEHICLE ELECTRICAL SYSTEMS AVAILABLE TODAY, FOR VEHICLES, WE CAN MAKE HENRY FORD'S INVENTION FROM THE EARLY 1900'S, "RUNNING A CAR ON HYDROGEN ELECTROLIZED FROM WATER", WORK IN TODAY'S VEHICLES.

HOW CAN WE BEST GET THIS INFORMATION ABOUT HOW TO "RUN VEHICLES ON WATER" TO THE TOP MANAGEMENT AND ENGINEERS OF THE AUTOMOBILE MANUFACTURES. IT IS SO SIMPLE AND EASY TO SUPPLIMENT GASOLINE WITH HYDROGEN ELECTROLIZED FROM WATER OR SKIP THE GASOLINE AND JUST USE HYDROGEN FOR FUEL, THAT 99 PEOPLE OUT OF 100, CAN'T BELIEVE IT IS POSSIBLE TO RUN A VEHICLE ON WATER.

MY NEIGHBOR, A MECHANIC AND I ARE CONVERTING AN OLD, 1989 BUICK CENTURY V-6, TO RUN ON GASOLINE SUPPLIMENTED WITH HYDROGEN GAS ELECTROLIZED FROM WATER. IF IT DOUBLES THE MPG, MAYBE I COULD DRIVE IT OVER TO THE LOCAL BUICK DEALER, HERE IN KANSAS CITY AND SEE IF THEY WOULD TELL THEIR BIG SHOTS TO TELL GM HOW IT WORKS.

WHAT DO YOU THINK?

LEO WELLS
[email protected]

clonedvdmovie

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Claudio Timbers

GASOLINE SUPPLIMENTED WITH HYDROGEN GAS ELECTROLIZED FROM WATER. IF IT DOUBLES THE MPG, MAYBE I COULD DRIVE IT OVER TO THE LOCAL BUICK DEALER, HERE IN KANSAS CITY AND SEE IF THEY WOULD TELL THEIR BIG SHOTS TO TELL GM HOW IT WORKS. registry cleaners

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