[extropy-chat] Re: peak oil debate framed from a game theorystandpoint ?

[Eugen Leitl]

On Wed, Sep 07, 2005 at 03:06:26PM +0100, BillK wrote:
> On 9/7/05, Eugen Leitl wrote:
> > That site is completely content-free. I see solid pellets,
> > which is already bad.
> > 
> > Is this reversible hydride storage? Temperature or pressure
> > loading? Looks white, which could sodium borohydride or
> > Lithium/aluminum hydrides, which would be useless.
> > 
> > Can you provide additional details on the 'proprietary' material?
> > 
> 
> <http://denmark.dk/portal/page?_pageid=374,610590&_dad=portal&_schema=PORTAL&ic_itemid=859159>
> 
> After keeping their project a secret for the past six months while
> waiting for international patent protection, the researchers plan to
> publicly reveal their invention at a scientific conference in Chicago,
> reports national daily Jyllands-Posten.
> 
> The DTU team has worked for a year and a half to develop a method to
> store hydrogen, a lighter-than-air, inflammable gas, in a compact,
> solid form.
> 
> 'Before, the amount of hydrogen needed to fuel a passenger vehicle for
> 500km occupied the same space as nine passenger vehicles. With our
> pill, the same amount of energy can be contained in a normal 50 litre
> tank,' said Christensen.

This is still 100% content-free press babble. 

I've spent a few minutes with Google, and found references to metal 
amine (spelled ammine, maybe they do that in Denmark but it's sloppy) 
hydrogen complexes in Amminex context.

I've worked with alane amines and metal hydrides for a couple months. Even if that
stuff doesn't age with loading/unloading cycles, loading time
with pressurized hydrogen will be in about hour range. They
claim they can store ~9% of hydrogen by weight, or 13 MJ/l (if it's
anything like magnesium hydride it will be about 1.5 the density of water).
Hydrocarbon fuel is about 40-50 MJ/kg, and that's at density lower 
than water -- a familiar liquid at RT. Methanol is about 22 MJ/kg.

Here's some overview article http://www.aip.org/tip/INPHFA/vol-10/iss-1/p20.html

All in all sounds about as practical as the PowerBalls guy.
Overhyped at best, midly fraudulent at worst. We'll see.

-- 
Eugen* Leitl <a href="http://leitl.org">leitl</a>
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ICBM: 48.07100, 11.36820            http://www.leitl.org
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