underground but not a fossil

[freebeard]

"Meanwhile I’d like to propose that really the universe is made of 100 percent dark humour. " Sabine Hossenfelder [5:47]

[oil pan 4]

Oh that's savage.

[cRiPpLe_rOoStEr]

Some 20 years ago I used to be more optimistic about hydrogen as a motor fuel, yet I became more skeptical about it around 2004. Biodiesel, ethanol and natural gas (eventually also considering biomethane) sound more realistic to me in a 3rd-world country.

Originally Posted by mort

Hydrogen seeps are believed to be the cause of geological depressions called "Fairy Circles" and there are fairy circles in North Carolina, Brazil, Russia, and Mali.

Where in Brazil? Never heard about it.

[wdb]

Originally Posted by mort

Wells! Wells are being bored all over. Natural Hydrogen seems to be a coming thing.
Before today I hadn't heard that there could be exploitable amounts of hydrogen underground. This week's issue of Science magazine (vol. 379 17 February 2023) has an article: "Hidden Hydrogen" which is a long story about all the people and places that are being examined for natural hydrogen.
-mort

But what about...

[cRiPpLe_rOoStEr]

Originally Posted by wdb

But what about...

Seems to be more of an issue with petroleum than with methane or other gases. Not to mention they're trapped inside rocky caverns (well, sort of) which might have some sort of structural integrity.

[Logic]

https://www.youtube.com/watch?v=VRP5mQfmN5g&t=6s

Beneath the heart of North America lies an ancient treasure—the Midcontinent Rift, a billion-year-old geological wonder that could revolutionize our energy future. Scientists in Nebraska are uncovering its incredible potential to produce natural hydrogen—clean, renewable, and carbon-free. This process, happening naturally in volcanic rock formations, offers the promise of sustainable energy for centuries. Join us as we dive deep into this extraordinary discovery, exploring the cutting-edge research, engineering marvels, and the global implications of unlocking the hydrogen economy. From Nebraska to the world, this is the story of turning Earth's ancient scars into a beacon of hope for a greener, cleaner future.

IIRC Palladium is good at holding and releasing hydrogen.|
yep:
https://www.sciencedirect.com/scienc...69702111701432
No idea how practical it is?

[freebeard]

3-5000 feet isn't too deep (the record is 40,000) but maybe this is an opportunity for Quaise?

newatlas.com/energy/quaise-deep-geothermal-drilling-questions/

[Logic]

Originally Posted by freebeard

3-5000 feet isn't too deep (the record is 40,000) but maybe this is an opportunity for Quaise?

newatlas.com/energy/quaise-deep-geothermal-drilling-questions/

I say bugger all this high pressure bottling! Pipe it up and put it through a (modded) diesel genset if that's all you have!
(You need to 'retard the timing' and turbo n stuff at high concentrations)

Especially if you can use the heat..! Engines become waaay! more efficient if you're heating your house and hot water.
With big gensets one could warm/farm dairy, poultry, piggery and veg etc, in normally 'too cold' areas.
(Yes I do see a glasshouse full of Bud in Siberia or somewhere! )

Put a vid on YouTube and someone will come running with a fuel cell too!

[Piotrsko]

Can you say hydrogen embrittlement? Issue that I see mostly with hydrogen fuel is that it escapes whatever container/ transport system you store it in by either embrittlement fractures or escaping past the seals.

[Logic]

Originally Posted by Piotrsko

Can you say hydrogen embrittlement? Issue that I see mostly with hydrogen fuel is that it escapes whatever container/ transport system you store it in by either embrittlement fractures or escaping past the seals.

I can say:
Don't pressurise it.
Don't store it.
Use it immediately and mixed with air and at the lower pressures.
Then transport it, as electricity, in a wire.

Wait-a-minute:
Isn't that what I already said..?
Let me check.....
Yes... yes it does seem to be what I already said..???